diff --git a/packages/backend/src/core/AbuseReportNotificationService.ts b/packages/backend/src/core/AbuseReportNotificationService.ts
index 7be5335885..fe2c63e7d6 100644
--- a/packages/backend/src/core/AbuseReportNotificationService.ts
+++ b/packages/backend/src/core/AbuseReportNotificationService.ts
@@ -14,10 +14,10 @@ import type {
 	AbuseReportNotificationRecipientRepository,
 	MiAbuseReportNotificationRecipient,
 	MiAbuseUserReport,
+	MiMeta,
 	MiUser,
 } from '@/models/_.js';
 import { EmailService } from '@/core/EmailService.js';
-import { MetaService } from '@/core/MetaService.js';
 import { RoleService } from '@/core/RoleService.js';
 import { RecipientMethod } from '@/models/AbuseReportNotificationRecipient.js';
 import { ModerationLogService } from '@/core/ModerationLogService.js';
@@ -27,15 +27,19 @@ import { IdService } from './IdService.js';
 @Injectable()
 export class AbuseReportNotificationService implements OnApplicationShutdown {
 	constructor(
+		@Inject(DI.meta)
+		private meta: MiMeta,
+
 		@Inject(DI.abuseReportNotificationRecipientRepository)
 		private abuseReportNotificationRecipientRepository: AbuseReportNotificationRecipientRepository,
+
 		@Inject(DI.redisForSub)
 		private redisForSub: Redis.Redis,
+
 		private idService: IdService,
 		private roleService: RoleService,
 		private systemWebhookService: SystemWebhookService,
 		private emailService: EmailService,
-		private metaService: MetaService,
 		private moderationLogService: ModerationLogService,
 		private globalEventService: GlobalEventService,
 	) {
@@ -93,10 +97,8 @@ export class AbuseReportNotificationService implements OnApplicationShutdown {
 			.filter(x => x != null),
 		);
 
-		// 送信先の鮮度を保つため、毎回取得する
-		const meta = await this.metaService.fetch(true);
 		recipientEMailAddresses.push(
-			...(meta.email ? [meta.email] : []),
+			...(this.meta.email ? [this.meta.email] : []),
 		);
 
 		if (recipientEMailAddresses.length <= 0) {
diff --git a/packages/backend/src/core/AccountMoveService.ts b/packages/backend/src/core/AccountMoveService.ts
index b6b591d240..6e3125044c 100644
--- a/packages/backend/src/core/AccountMoveService.ts
+++ b/packages/backend/src/core/AccountMoveService.ts
@@ -9,7 +9,7 @@ import { IsNull, In, MoreThan, Not } from 'typeorm';
 import { bindThis } from '@/decorators.js';
 import { DI } from '@/di-symbols.js';
 import type { MiLocalUser, MiRemoteUser, MiUser } from '@/models/User.js';
-import type { BlockingsRepository, FollowingsRepository, InstancesRepository, MutingsRepository, UserListMembershipsRepository, UsersRepository } from '@/models/_.js';
+import type { BlockingsRepository, FollowingsRepository, InstancesRepository, MiMeta, MutingsRepository, UserListMembershipsRepository, UsersRepository } from '@/models/_.js';
 import type { RelationshipJobData, ThinUser } from '@/queue/types.js';
 
 import { IdService } from '@/core/IdService.js';
@@ -22,13 +22,15 @@ import { ApRendererService } from '@/core/activitypub/ApRendererService.js';
 import { UserEntityService } from '@/core/entities/UserEntityService.js';
 import { ProxyAccountService } from '@/core/ProxyAccountService.js';
 import { FederatedInstanceService } from '@/core/FederatedInstanceService.js';
-import { MetaService } from '@/core/MetaService.js';
 import InstanceChart from '@/core/chart/charts/instance.js';
 import PerUserFollowingChart from '@/core/chart/charts/per-user-following.js';
 
 @Injectable()
 export class AccountMoveService {
 	constructor(
+		@Inject(DI.meta)
+		private meta: MiMeta,
+
 		@Inject(DI.usersRepository)
 		private usersRepository: UsersRepository,
 
@@ -57,7 +59,6 @@ export class AccountMoveService {
 		private perUserFollowingChart: PerUserFollowingChart,
 		private federatedInstanceService: FederatedInstanceService,
 		private instanceChart: InstanceChart,
-		private metaService: MetaService,
 		private relayService: RelayService,
 		private queueService: QueueService,
 	) {
@@ -276,7 +277,7 @@ export class AccountMoveService {
 		if (this.userEntityService.isRemoteUser(oldAccount)) {
 			this.federatedInstanceService.fetch(oldAccount.host).then(async i => {
 				this.instancesRepository.decrement({ id: i.id }, 'followersCount', localFollowerIds.length);
-				if ((await this.metaService.fetch()).enableChartsForFederatedInstances) {
+				if (this.meta.enableChartsForFederatedInstances) {
 					this.instanceChart.updateFollowers(i.host, false);
 				}
 			});
diff --git a/packages/backend/src/core/NoteDeleteService.ts b/packages/backend/src/core/NoteDeleteService.ts
index b7c01c64c8..f9f8ace386 100644
--- a/packages/backend/src/core/NoteDeleteService.ts
+++ b/packages/backend/src/core/NoteDeleteService.ts
@@ -7,7 +7,7 @@ import { Brackets, In } from 'typeorm';
 import { Injectable, Inject } from '@nestjs/common';
 import type { MiUser, MiLocalUser, MiRemoteUser } from '@/models/User.js';
 import type { MiNote, IMentionedRemoteUsers } from '@/models/Note.js';
-import type { InstancesRepository, NotesRepository, UsersRepository } from '@/models/_.js';
+import type { InstancesRepository, MiMeta, NotesRepository, UsersRepository } from '@/models/_.js';
 import { RelayService } from '@/core/RelayService.js';
 import { FederatedInstanceService } from '@/core/FederatedInstanceService.js';
 import { DI } from '@/di-symbols.js';
@@ -19,9 +19,7 @@ import { GlobalEventService } from '@/core/GlobalEventService.js';
 import { ApRendererService } from '@/core/activitypub/ApRendererService.js';
 import { ApDeliverManagerService } from '@/core/activitypub/ApDeliverManagerService.js';
 import { UserEntityService } from '@/core/entities/UserEntityService.js';
-import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
 import { bindThis } from '@/decorators.js';
-import { MetaService } from '@/core/MetaService.js';
 import { SearchService } from '@/core/SearchService.js';
 import { ModerationLogService } from '@/core/ModerationLogService.js';
 import { isQuote, isRenote } from '@/misc/is-renote.js';
@@ -32,6 +30,9 @@ export class NoteDeleteService {
 		@Inject(DI.config)
 		private config: Config,
 
+		@Inject(DI.meta)
+		private meta: MiMeta,
+
 		@Inject(DI.usersRepository)
 		private usersRepository: UsersRepository,
 
@@ -42,13 +43,11 @@ export class NoteDeleteService {
 		private instancesRepository: InstancesRepository,
 
 		private userEntityService: UserEntityService,
-		private noteEntityService: NoteEntityService,
 		private globalEventService: GlobalEventService,
 		private relayService: RelayService,
 		private federatedInstanceService: FederatedInstanceService,
 		private apRendererService: ApRendererService,
 		private apDeliverManagerService: ApDeliverManagerService,
-		private metaService: MetaService,
 		private searchService: SearchService,
 		private moderationLogService: ModerationLogService,
 		private notesChart: NotesChart,
@@ -102,17 +101,15 @@ export class NoteDeleteService {
 			}
 			//#endregion
 
-			const meta = await this.metaService.fetch();
-
 			this.notesChart.update(note, false);
-			if (meta.enableChartsForRemoteUser || (user.host == null)) {
+			if (this.meta.enableChartsForRemoteUser || (user.host == null)) {
 				this.perUserNotesChart.update(user, note, false);
 			}
 
 			if (this.userEntityService.isRemoteUser(user)) {
 				this.federatedInstanceService.fetch(user.host).then(async i => {
 					this.instancesRepository.decrement({ id: i.id }, 'notesCount', 1);
-					if ((await this.metaService.fetch()).enableChartsForFederatedInstances) {
+					if (this.meta.enableChartsForFederatedInstances) {
 						this.instanceChart.updateNote(i.host, note, false);
 					}
 				});
diff --git a/packages/backend/src/core/ProxyAccountService.ts b/packages/backend/src/core/ProxyAccountService.ts
index 71d663bf90..c3ff2a68d3 100644
--- a/packages/backend/src/core/ProxyAccountService.ts
+++ b/packages/backend/src/core/ProxyAccountService.ts
@@ -4,26 +4,25 @@
  */
 
 import { Inject, Injectable } from '@nestjs/common';
-import type { UsersRepository } from '@/models/_.js';
+import type { MiMeta, UsersRepository } from '@/models/_.js';
 import type { MiLocalUser } from '@/models/User.js';
 import { DI } from '@/di-symbols.js';
-import { MetaService } from '@/core/MetaService.js';
 import { bindThis } from '@/decorators.js';
 
 @Injectable()
 export class ProxyAccountService {
 	constructor(
+		@Inject(DI.meta)
+		private meta: MiMeta,
+
 		@Inject(DI.usersRepository)
 		private usersRepository: UsersRepository,
-
-		private metaService: MetaService,
 	) {
 	}
 
 	@bindThis
 	public async fetch(): Promise<MiLocalUser | null> {
-		const meta = await this.metaService.fetch();
-		if (meta.proxyAccountId == null) return null;
-		return await this.usersRepository.findOneByOrFail({ id: meta.proxyAccountId }) as MiLocalUser;
+		if (this.meta.proxyAccountId == null) return null;
+		return await this.usersRepository.findOneByOrFail({ id: this.meta.proxyAccountId }) as MiLocalUser;
 	}
 }
diff --git a/packages/backend/src/core/SignupService.ts b/packages/backend/src/core/SignupService.ts
index de45898328..cc8a3d6461 100644
--- a/packages/backend/src/core/SignupService.ts
+++ b/packages/backend/src/core/SignupService.ts
@@ -8,7 +8,7 @@ import { Inject, Injectable } from '@nestjs/common';
 import bcrypt from 'bcryptjs';
 import { DataSource, IsNull } from 'typeorm';
 import { DI } from '@/di-symbols.js';
-import type { UsedUsernamesRepository, UsersRepository } from '@/models/_.js';
+import type { MiMeta, UsedUsernamesRepository, UsersRepository } from '@/models/_.js';
 import { MiUser } from '@/models/User.js';
 import { MiUserProfile } from '@/models/UserProfile.js';
 import { IdService } from '@/core/IdService.js';
@@ -20,7 +20,6 @@ import { InstanceActorService } from '@/core/InstanceActorService.js';
 import { bindThis } from '@/decorators.js';
 import UsersChart from '@/core/chart/charts/users.js';
 import { UtilityService } from '@/core/UtilityService.js';
-import { MetaService } from '@/core/MetaService.js';
 import { UserService } from '@/core/UserService.js';
 
 @Injectable()
@@ -29,6 +28,9 @@ export class SignupService {
 		@Inject(DI.db)
 		private db: DataSource,
 
+		@Inject(DI.meta)
+		private meta: MiMeta,
+
 		@Inject(DI.usersRepository)
 		private usersRepository: UsersRepository,
 
@@ -39,7 +41,6 @@ export class SignupService {
 		private userService: UserService,
 		private userEntityService: UserEntityService,
 		private idService: IdService,
-		private metaService: MetaService,
 		private instanceActorService: InstanceActorService,
 		private usersChart: UsersChart,
 	) {
@@ -88,8 +89,7 @@ export class SignupService {
 		const isTheFirstUser = !await this.instanceActorService.realLocalUsersPresent();
 
 		if (!opts.ignorePreservedUsernames && !isTheFirstUser) {
-			const instance = await this.metaService.fetch(true);
-			const isPreserved = instance.preservedUsernames.map(x => x.toLowerCase()).includes(username.toLowerCase());
+			const isPreserved = this.meta.preservedUsernames.map(x => x.toLowerCase()).includes(username.toLowerCase());
 			if (isPreserved) {
 				throw new Error('USED_USERNAME');
 			}
diff --git a/packages/backend/src/core/WebAuthnService.ts b/packages/backend/src/core/WebAuthnService.ts
index ec9f4484a4..a40c6ff1c9 100644
--- a/packages/backend/src/core/WebAuthnService.ts
+++ b/packages/backend/src/core/WebAuthnService.ts
@@ -12,10 +12,9 @@ import {
 } from '@simplewebauthn/server';
 import { AttestationFormat, isoCBOR, isoUint8Array } from '@simplewebauthn/server/helpers';
 import { DI } from '@/di-symbols.js';
-import type { UserSecurityKeysRepository } from '@/models/_.js';
+import type { MiMeta, UserSecurityKeysRepository } from '@/models/_.js';
 import type { Config } from '@/config.js';
 import { bindThis } from '@/decorators.js';
-import { MetaService } from '@/core/MetaService.js';
 import { MiUser } from '@/models/_.js';
 import { IdentifiableError } from '@/misc/identifiable-error.js';
 import type {
@@ -23,7 +22,6 @@ import type {
 	AuthenticatorTransportFuture,
 	CredentialDeviceType,
 	PublicKeyCredentialCreationOptionsJSON,
-	PublicKeyCredentialDescriptorFuture,
 	PublicKeyCredentialRequestOptionsJSON,
 	RegistrationResponseJSON,
 } from '@simplewebauthn/types';
@@ -31,33 +29,33 @@ import type {
 @Injectable()
 export class WebAuthnService {
 	constructor(
-		@Inject(DI.redis)
-		private redisClient: Redis.Redis,
-
 		@Inject(DI.config)
 		private config: Config,
 
+		@Inject(DI.meta)
+		private meta: MiMeta,
+
+		@Inject(DI.redis)
+		private redisClient: Redis.Redis,
+
 		@Inject(DI.userSecurityKeysRepository)
 		private userSecurityKeysRepository: UserSecurityKeysRepository,
-
-		private metaService: MetaService,
 	) {
 	}
 
 	@bindThis
-	public async getRelyingParty(): Promise<{ origin: string; rpId: string; rpName: string; rpIcon?: string; }> {
-		const instance = await this.metaService.fetch();
+	public getRelyingParty(): { origin: string; rpId: string; rpName: string; rpIcon?: string; } {
 		return {
 			origin: this.config.url,
 			rpId: this.config.hostname,
-			rpName: instance.name ?? this.config.host,
-			rpIcon: instance.iconUrl ?? undefined,
+			rpName: this.meta.name ?? this.config.host,
+			rpIcon: this.meta.iconUrl ?? undefined,
 		};
 	}
 
 	@bindThis
 	public async initiateRegistration(userId: MiUser['id'], userName: string, userDisplayName?: string): Promise<PublicKeyCredentialCreationOptionsJSON> {
-		const relyingParty = await this.getRelyingParty();
+		const relyingParty = this.getRelyingParty();
 		const keys = await this.userSecurityKeysRepository.findBy({
 			userId: userId,
 		});
@@ -104,7 +102,7 @@ export class WebAuthnService {
 
 		await this.redisClient.del(`webauthn:challenge:${userId}`);
 
-		const relyingParty = await this.getRelyingParty();
+		const relyingParty = this.getRelyingParty();
 
 		let verification;
 		try {
@@ -143,7 +141,7 @@ export class WebAuthnService {
 
 	@bindThis
 	public async initiateAuthentication(userId: MiUser['id']): Promise<PublicKeyCredentialRequestOptionsJSON> {
-		const relyingParty = await this.getRelyingParty();
+		const relyingParty = this.getRelyingParty();
 		const keys = await this.userSecurityKeysRepository.findBy({
 			userId: userId,
 		});
@@ -209,7 +207,7 @@ export class WebAuthnService {
 			}
 		}
 
-		const relyingParty = await this.getRelyingParty();
+		const relyingParty = this.getRelyingParty();
 
 		let verification;
 		try {
diff --git a/packages/backend/src/core/activitypub/models/ApImageService.ts b/packages/backend/src/core/activitypub/models/ApImageService.ts
index 3691967270..e7ece87b01 100644
--- a/packages/backend/src/core/activitypub/models/ApImageService.ts
+++ b/packages/backend/src/core/activitypub/models/ApImageService.ts
@@ -5,10 +5,9 @@
 
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
-import type { DriveFilesRepository } from '@/models/_.js';
+import type { DriveFilesRepository, MiMeta } from '@/models/_.js';
 import type { MiRemoteUser } from '@/models/User.js';
 import type { MiDriveFile } from '@/models/DriveFile.js';
-import { MetaService } from '@/core/MetaService.js';
 import { truncate } from '@/misc/truncate.js';
 import { DB_MAX_IMAGE_COMMENT_LENGTH } from '@/const.js';
 import { DriveService } from '@/core/DriveService.js';
@@ -24,10 +23,12 @@ export class ApImageService {
 	private logger: Logger;
 
 	constructor(
+		@Inject(DI.meta)
+		private meta: MiMeta,
+
 		@Inject(DI.driveFilesRepository)
 		private driveFilesRepository: DriveFilesRepository,
 
-		private metaService: MetaService,
 		private apResolverService: ApResolverService,
 		private driveService: DriveService,
 		private apLoggerService: ApLoggerService,
@@ -63,12 +64,10 @@ export class ApImageService {
 
 		this.logger.info(`Creating the Image: ${image.url}`);
 
-		const instance = await this.metaService.fetch();
-
 		// Cache if remote file cache is on AND either
 		// 1. remote sensitive file is also on
 		// 2. or the image is not sensitive
-		const shouldBeCached = instance.cacheRemoteFiles && (instance.cacheRemoteSensitiveFiles || !image.sensitive);
+		const shouldBeCached = this.meta.cacheRemoteFiles && (this.meta.cacheRemoteSensitiveFiles || !image.sensitive);
 
 		const file = await this.driveService.uploadFromUrl({
 			url: image.url,
diff --git a/packages/backend/src/core/chart/charts/federation.ts b/packages/backend/src/core/chart/charts/federation.ts
index f40a26495d..c9b43cc66d 100644
--- a/packages/backend/src/core/chart/charts/federation.ts
+++ b/packages/backend/src/core/chart/charts/federation.ts
@@ -5,10 +5,9 @@
 
 import { Injectable, Inject } from '@nestjs/common';
 import { DataSource } from 'typeorm';
-import type { FollowingsRepository, InstancesRepository } from '@/models/_.js';
+import type { FollowingsRepository, InstancesRepository, MiMeta } from '@/models/_.js';
 import { AppLockService } from '@/core/AppLockService.js';
 import { DI } from '@/di-symbols.js';
-import { MetaService } from '@/core/MetaService.js';
 import { bindThis } from '@/decorators.js';
 import Chart from '../core.js';
 import { ChartLoggerService } from '../ChartLoggerService.js';
@@ -24,13 +23,15 @@ export default class FederationChart extends Chart<typeof schema> { // eslint-di
 		@Inject(DI.db)
 		private db: DataSource,
 
+		@Inject(DI.meta)
+		private meta: MiMeta,
+
 		@Inject(DI.followingsRepository)
 		private followingsRepository: FollowingsRepository,
 
 		@Inject(DI.instancesRepository)
 		private instancesRepository: InstancesRepository,
 
-		private metaService: MetaService,
 		private appLockService: AppLockService,
 		private chartLoggerService: ChartLoggerService,
 	) {
@@ -43,8 +44,6 @@ export default class FederationChart extends Chart<typeof schema> { // eslint-di
 	}
 
 	protected async tickMinor(): Promise<Partial<KVs<typeof schema>>> {
-		const meta = await this.metaService.fetch();
-
 		const suspendedInstancesQuery = this.instancesRepository.createQueryBuilder('instance')
 			.select('instance.host')
 			.where('instance.suspensionState != \'none\'');
@@ -65,21 +64,21 @@ export default class FederationChart extends Chart<typeof schema> { // eslint-di
 			this.followingsRepository.createQueryBuilder('following')
 				.select('COUNT(DISTINCT following.followeeHost)')
 				.where('following.followeeHost IS NOT NULL')
-				.andWhere(meta.blockedHosts.length === 0 ? '1=1' : 'following.followeeHost NOT ILIKE ALL(ARRAY[:...blocked])', { blocked: meta.blockedHosts.flatMap(x => [x, `%.${x}`]) })
+				.andWhere(this.meta.blockedHosts.length === 0 ? '1=1' : 'following.followeeHost NOT ILIKE ALL(ARRAY[:...blocked])', { blocked: this.meta.blockedHosts.flatMap(x => [x, `%.${x}`]) })
 				.andWhere(`following.followeeHost NOT IN (${ suspendedInstancesQuery.getQuery() })`)
 				.getRawOne()
 				.then(x => parseInt(x.count, 10)),
 			this.followingsRepository.createQueryBuilder('following')
 				.select('COUNT(DISTINCT following.followerHost)')
 				.where('following.followerHost IS NOT NULL')
-				.andWhere(meta.blockedHosts.length === 0 ? '1=1' : 'following.followerHost NOT ILIKE ALL(ARRAY[:...blocked])', { blocked: meta.blockedHosts.flatMap(x => [x, `%.${x}`]) })
+				.andWhere(this.meta.blockedHosts.length === 0 ? '1=1' : 'following.followerHost NOT ILIKE ALL(ARRAY[:...blocked])', { blocked: this.meta.blockedHosts.flatMap(x => [x, `%.${x}`]) })
 				.andWhere(`following.followerHost NOT IN (${ suspendedInstancesQuery.getQuery() })`)
 				.getRawOne()
 				.then(x => parseInt(x.count, 10)),
 			this.followingsRepository.createQueryBuilder('following')
 				.select('COUNT(DISTINCT following.followeeHost)')
 				.where('following.followeeHost IS NOT NULL')
-				.andWhere(meta.blockedHosts.length === 0 ? '1=1' : 'following.followeeHost NOT ILIKE ALL(ARRAY[:...blocked])', { blocked: meta.blockedHosts.flatMap(x => [x, `%.${x}`]) })
+				.andWhere(this.meta.blockedHosts.length === 0 ? '1=1' : 'following.followeeHost NOT ILIKE ALL(ARRAY[:...blocked])', { blocked: this.meta.blockedHosts.flatMap(x => [x, `%.${x}`]) })
 				.andWhere(`following.followeeHost NOT IN (${ suspendedInstancesQuery.getQuery() })`)
 				.andWhere(`following.followeeHost IN (${ pubsubSubQuery.getQuery() })`)
 				.setParameters(pubsubSubQuery.getParameters())
@@ -88,7 +87,7 @@ export default class FederationChart extends Chart<typeof schema> { // eslint-di
 			this.instancesRepository.createQueryBuilder('instance')
 				.select('COUNT(instance.id)')
 				.where(`instance.host IN (${ subInstancesQuery.getQuery() })`)
-				.andWhere(meta.blockedHosts.length === 0 ? '1=1' : 'instance.host NOT ILIKE ALL(ARRAY[:...blocked])', { blocked: meta.blockedHosts.flatMap(x => [x, `%.${x}`]) })
+				.andWhere(this.meta.blockedHosts.length === 0 ? '1=1' : 'instance.host NOT ILIKE ALL(ARRAY[:...blocked])', { blocked: this.meta.blockedHosts.flatMap(x => [x, `%.${x}`]) })
 				.andWhere('instance.suspensionState = \'none\'')
 				.andWhere('instance.isNotResponding = false')
 				.getRawOne()
@@ -96,7 +95,7 @@ export default class FederationChart extends Chart<typeof schema> { // eslint-di
 			this.instancesRepository.createQueryBuilder('instance')
 				.select('COUNT(instance.id)')
 				.where(`instance.host IN (${ pubInstancesQuery.getQuery() })`)
-				.andWhere(meta.blockedHosts.length === 0 ? '1=1' : 'instance.host NOT ILIKE ALL(ARRAY[:...blocked])', { blocked: meta.blockedHosts.flatMap(x => [x, `%.${x}`]) })
+				.andWhere(this.meta.blockedHosts.length === 0 ? '1=1' : 'instance.host NOT ILIKE ALL(ARRAY[:...blocked])', { blocked: this.meta.blockedHosts.flatMap(x => [x, `%.${x}`]) })
 				.andWhere('instance.suspensionState = \'none\'')
 				.andWhere('instance.isNotResponding = false')
 				.getRawOne()
diff --git a/packages/backend/src/core/entities/InstanceEntityService.ts b/packages/backend/src/core/entities/InstanceEntityService.ts
index 4956bc22ce..284537b986 100644
--- a/packages/backend/src/core/entities/InstanceEntityService.ts
+++ b/packages/backend/src/core/entities/InstanceEntityService.ts
@@ -3,19 +3,22 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-import { Injectable } from '@nestjs/common';
+import { Inject, Injectable } from '@nestjs/common';
 import type { Packed } from '@/misc/json-schema.js';
 import type { MiInstance } from '@/models/Instance.js';
-import { MetaService } from '@/core/MetaService.js';
 import { bindThis } from '@/decorators.js';
 import { UtilityService } from '@/core/UtilityService.js';
 import { RoleService } from '@/core/RoleService.js';
 import { MiUser } from '@/models/User.js';
+import { DI } from '@/di-symbols.js';
+import { MiMeta } from '@/models/_.js';
 
 @Injectable()
 export class InstanceEntityService {
 	constructor(
-		private metaService: MetaService,
+		@Inject(DI.meta)
+		private meta: MiMeta,
+
 		private roleService: RoleService,
 
 		private utilityService: UtilityService,
@@ -27,7 +30,6 @@ export class InstanceEntityService {
 		instance: MiInstance,
 		me?: { id: MiUser['id']; } | null | undefined,
 	): Promise<Packed<'FederationInstance'>> {
-		const meta = await this.metaService.fetch();
 		const iAmModerator = me ? await this.roleService.isModerator(me as MiUser) : false;
 
 		return {
@@ -41,7 +43,7 @@ export class InstanceEntityService {
 			isNotResponding: instance.isNotResponding,
 			isSuspended: instance.suspensionState !== 'none',
 			suspensionState: instance.suspensionState,
-			isBlocked: this.utilityService.isBlockedHost(meta.blockedHosts, instance.host),
+			isBlocked: this.utilityService.isBlockedHost(this.meta.blockedHosts, instance.host),
 			softwareName: instance.softwareName,
 			softwareVersion: instance.softwareVersion,
 			openRegistrations: instance.openRegistrations,
@@ -49,8 +51,8 @@ export class InstanceEntityService {
 			description: instance.description,
 			maintainerName: instance.maintainerName,
 			maintainerEmail: instance.maintainerEmail,
-			isSilenced: this.utilityService.isSilencedHost(meta.silencedHosts, instance.host),
-			isMediaSilenced: this.utilityService.isMediaSilencedHost(meta.mediaSilencedHosts, instance.host),
+			isSilenced: this.utilityService.isSilencedHost(this.meta.silencedHosts, instance.host),
+			isMediaSilenced: this.utilityService.isMediaSilencedHost(this.meta.mediaSilencedHosts, instance.host),
 			iconUrl: instance.iconUrl,
 			faviconUrl: instance.faviconUrl,
 			themeColor: instance.themeColor,
diff --git a/packages/backend/src/core/entities/MetaEntityService.ts b/packages/backend/src/core/entities/MetaEntityService.ts
index f4b1e302d0..fbd982eb34 100644
--- a/packages/backend/src/core/entities/MetaEntityService.ts
+++ b/packages/backend/src/core/entities/MetaEntityService.ts
@@ -10,7 +10,6 @@ import type { Packed } from '@/misc/json-schema.js';
 import type { MiMeta } from '@/models/Meta.js';
 import type { AdsRepository } from '@/models/_.js';
 import { MAX_NOTE_TEXT_LENGTH } from '@/const.js';
-import { MetaService } from '@/core/MetaService.js';
 import { bindThis } from '@/decorators.js';
 import { UserEntityService } from '@/core/entities/UserEntityService.js';
 import { InstanceActorService } from '@/core/InstanceActorService.js';
@@ -24,11 +23,13 @@ export class MetaEntityService {
 		@Inject(DI.config)
 		private config: Config,
 
+		@Inject(DI.meta)
+		private meta: MiMeta,
+
 		@Inject(DI.adsRepository)
 		private adsRepository: AdsRepository,
 
 		private userEntityService: UserEntityService,
-		private metaService: MetaService,
 		private instanceActorService: InstanceActorService,
 	) { }
 
@@ -37,7 +38,7 @@ export class MetaEntityService {
 		let instance = meta;
 
 		if (!instance) {
-			instance = await this.metaService.fetch();
+			instance = this.meta;
 		}
 
 		const ads = await this.adsRepository.createQueryBuilder('ads')
@@ -140,7 +141,7 @@ export class MetaEntityService {
 		let instance = meta;
 
 		if (!instance) {
-			instance = await this.metaService.fetch();
+			instance = this.meta;
 		}
 
 		const packed = await this.pack(instance);
diff --git a/packages/backend/src/daemons/ServerStatsService.ts b/packages/backend/src/daemons/ServerStatsService.ts
index 2c70344c94..d229efb123 100644
--- a/packages/backend/src/daemons/ServerStatsService.ts
+++ b/packages/backend/src/daemons/ServerStatsService.ts
@@ -3,13 +3,14 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-import { Injectable } from '@nestjs/common';
+import { Inject, Injectable } from '@nestjs/common';
 import si from 'systeminformation';
 import Xev from 'xev';
 import * as osUtils from 'os-utils';
 import { bindThis } from '@/decorators.js';
-import { MetaService } from '@/core/MetaService.js';
 import type { OnApplicationShutdown } from '@nestjs/common';
+import { MiMeta } from '@/models/_.js';
+import { DI } from '@/di-symbols.js';
 
 const ev = new Xev();
 
@@ -23,7 +24,8 @@ export class ServerStatsService implements OnApplicationShutdown {
 	private intervalId: NodeJS.Timeout | null = null;
 
 	constructor(
-		private metaService: MetaService,
+		@Inject(DI.meta)
+		private meta: MiMeta,
 	) {
 	}
 
@@ -32,7 +34,7 @@ export class ServerStatsService implements OnApplicationShutdown {
 	 */
 	@bindThis
 	public async start(): Promise<void> {
-		if (!(await this.metaService.fetch(true)).enableServerMachineStats) return;
+		if (!this.meta.enableServerMachineStats) return;
 
 		const log = [] as any[];
 
diff --git a/packages/backend/src/queue/processors/BakeBufferedReactionsProcessorService.ts b/packages/backend/src/queue/processors/BakeBufferedReactionsProcessorService.ts
index cd56ba9837..d49c99f694 100644
--- a/packages/backend/src/queue/processors/BakeBufferedReactionsProcessorService.ts
+++ b/packages/backend/src/queue/processors/BakeBufferedReactionsProcessorService.ts
@@ -7,17 +7,20 @@ import { Inject, Injectable } from '@nestjs/common';
 import type Logger from '@/logger.js';
 import { bindThis } from '@/decorators.js';
 import { ReactionsBufferingService } from '@/core/ReactionsBufferingService.js';
-import { MetaService } from '@/core/MetaService.js';
 import { QueueLoggerService } from '../QueueLoggerService.js';
 import type * as Bull from 'bullmq';
+import { MiMeta } from '@/models/_.js';
+import { DI } from '@/di-symbols.js';
 
 @Injectable()
 export class BakeBufferedReactionsProcessorService {
 	private logger: Logger;
 
 	constructor(
+		@Inject(DI.meta)
+		private meta: MiMeta,
+
 		private reactionsBufferingService: ReactionsBufferingService,
-		private metaService: MetaService,
 		private queueLoggerService: QueueLoggerService,
 	) {
 		this.logger = this.queueLoggerService.logger.createSubLogger('bake-buffered-reactions');
@@ -25,8 +28,7 @@ export class BakeBufferedReactionsProcessorService {
 
 	@bindThis
 	public async process(): Promise<void> {
-		const meta = await this.metaService.fetch();
-		if (!meta.enableReactionsBuffering) {
+		if (!this.meta.enableReactionsBuffering) {
 			this.logger.info('Reactions buffering is disabled. Skipping...');
 			return;
 		}
diff --git a/packages/backend/src/server/ServerService.ts b/packages/backend/src/server/ServerService.ts
index 9c849480f2..10c077e617 100644
--- a/packages/backend/src/server/ServerService.ts
+++ b/packages/backend/src/server/ServerService.ts
@@ -13,7 +13,7 @@ import fastifyRawBody from 'fastify-raw-body';
 import { IsNull } from 'typeorm';
 import { GlobalEventService } from '@/core/GlobalEventService.js';
 import type { Config } from '@/config.js';
-import type { EmojisRepository, UserProfilesRepository, UsersRepository } from '@/models/_.js';
+import type { EmojisRepository, MiMeta, UserProfilesRepository, UsersRepository } from '@/models/_.js';
 import { DI } from '@/di-symbols.js';
 import type Logger from '@/logger.js';
 import * as Acct from '@/misc/acct.js';
@@ -21,7 +21,6 @@ import { genIdenticon } from '@/misc/gen-identicon.js';
 import { UserEntityService } from '@/core/entities/UserEntityService.js';
 import { LoggerService } from '@/core/LoggerService.js';
 import { bindThis } from '@/decorators.js';
-import { MetaService } from '@/core/MetaService.js';
 import { ActivityPubServerService } from './ActivityPubServerService.js';
 import { NodeinfoServerService } from './NodeinfoServerService.js';
 import { ApiServerService } from './api/ApiServerService.js';
@@ -44,6 +43,9 @@ export class ServerService implements OnApplicationShutdown {
 		@Inject(DI.config)
 		private config: Config,
 
+		@Inject(DI.meta)
+		private meta: MiMeta,
+
 		@Inject(DI.usersRepository)
 		private usersRepository: UsersRepository,
 
@@ -53,7 +55,6 @@ export class ServerService implements OnApplicationShutdown {
 		@Inject(DI.emojisRepository)
 		private emojisRepository: EmojisRepository,
 
-		private metaService: MetaService,
 		private userEntityService: UserEntityService,
 		private apiServerService: ApiServerService,
 		private openApiServerService: OpenApiServerService,
@@ -193,7 +194,7 @@ export class ServerService implements OnApplicationShutdown {
 			reply.header('Content-Type', 'image/png');
 			reply.header('Cache-Control', 'public, max-age=86400');
 
-			if ((await this.metaService.fetch()).enableIdenticonGeneration) {
+			if (this.meta.enableIdenticonGeneration) {
 				return await genIdenticon(request.params.x);
 			} else {
 				return reply.redirect('/static-assets/avatar.png');
diff --git a/packages/backend/src/server/api/SignupApiService.ts b/packages/backend/src/server/api/SignupApiService.ts
index 632b0c62bc..c499638018 100644
--- a/packages/backend/src/server/api/SignupApiService.ts
+++ b/packages/backend/src/server/api/SignupApiService.ts
@@ -7,9 +7,8 @@ import { Inject, Injectable } from '@nestjs/common';
 import bcrypt from 'bcryptjs';
 import { IsNull } from 'typeorm';
 import { DI } from '@/di-symbols.js';
-import type { RegistrationTicketsRepository, UsedUsernamesRepository, UserPendingsRepository, UserProfilesRepository, UsersRepository, MiRegistrationTicket } from '@/models/_.js';
+import type { RegistrationTicketsRepository, UsedUsernamesRepository, UserPendingsRepository, UserProfilesRepository, UsersRepository, MiRegistrationTicket, MiMeta } from '@/models/_.js';
 import type { Config } from '@/config.js';
-import { MetaService } from '@/core/MetaService.js';
 import { CaptchaService } from '@/core/CaptchaService.js';
 import { IdService } from '@/core/IdService.js';
 import { SignupService } from '@/core/SignupService.js';
@@ -28,6 +27,9 @@ export class SignupApiService {
 		@Inject(DI.config)
 		private config: Config,
 
+		@Inject(DI.meta)
+		private meta: MiMeta,
+
 		@Inject(DI.usersRepository)
 		private usersRepository: UsersRepository,
 
@@ -45,7 +47,6 @@ export class SignupApiService {
 
 		private userEntityService: UserEntityService,
 		private idService: IdService,
-		private metaService: MetaService,
 		private captchaService: CaptchaService,
 		private signupService: SignupService,
 		private signinService: SigninService,
@@ -72,31 +73,29 @@ export class SignupApiService {
 	) {
 		const body = request.body;
 
-		const instance = await this.metaService.fetch(true);
-
 		// Verify *Captcha
 		// ただしテスト時はこの機構は障害となるため無効にする
 		if (process.env.NODE_ENV !== 'test') {
-			if (instance.enableHcaptcha && instance.hcaptchaSecretKey) {
-				await this.captchaService.verifyHcaptcha(instance.hcaptchaSecretKey, body['hcaptcha-response']).catch(err => {
+			if (this.meta.enableHcaptcha && this.meta.hcaptchaSecretKey) {
+				await this.captchaService.verifyHcaptcha(this.meta.hcaptchaSecretKey, body['hcaptcha-response']).catch(err => {
 					throw new FastifyReplyError(400, err);
 				});
 			}
 
-			if (instance.enableMcaptcha && instance.mcaptchaSecretKey && instance.mcaptchaSitekey && instance.mcaptchaInstanceUrl) {
-				await this.captchaService.verifyMcaptcha(instance.mcaptchaSecretKey, instance.mcaptchaSitekey, instance.mcaptchaInstanceUrl, body['m-captcha-response']).catch(err => {
+			if (this.meta.enableMcaptcha && this.meta.mcaptchaSecretKey && this.meta.mcaptchaSitekey && this.meta.mcaptchaInstanceUrl) {
+				await this.captchaService.verifyMcaptcha(this.meta.mcaptchaSecretKey, this.meta.mcaptchaSitekey, this.meta.mcaptchaInstanceUrl, body['m-captcha-response']).catch(err => {
 					throw new FastifyReplyError(400, err);
 				});
 			}
 
-			if (instance.enableRecaptcha && instance.recaptchaSecretKey) {
-				await this.captchaService.verifyRecaptcha(instance.recaptchaSecretKey, body['g-recaptcha-response']).catch(err => {
+			if (this.meta.enableRecaptcha && this.meta.recaptchaSecretKey) {
+				await this.captchaService.verifyRecaptcha(this.meta.recaptchaSecretKey, body['g-recaptcha-response']).catch(err => {
 					throw new FastifyReplyError(400, err);
 				});
 			}
 
-			if (instance.enableTurnstile && instance.turnstileSecretKey) {
-				await this.captchaService.verifyTurnstile(instance.turnstileSecretKey, body['turnstile-response']).catch(err => {
+			if (this.meta.enableTurnstile && this.meta.turnstileSecretKey) {
+				await this.captchaService.verifyTurnstile(this.meta.turnstileSecretKey, body['turnstile-response']).catch(err => {
 					throw new FastifyReplyError(400, err);
 				});
 			}
@@ -108,7 +107,7 @@ export class SignupApiService {
 		const invitationCode = body['invitationCode'];
 		const emailAddress = body['emailAddress'];
 
-		if (instance.emailRequiredForSignup) {
+		if (this.meta.emailRequiredForSignup) {
 			if (emailAddress == null || typeof emailAddress !== 'string') {
 				reply.code(400);
 				return;
@@ -123,7 +122,7 @@ export class SignupApiService {
 
 		let ticket: MiRegistrationTicket | null = null;
 
-		if (instance.disableRegistration) {
+		if (this.meta.disableRegistration) {
 			if (invitationCode == null || typeof invitationCode !== 'string') {
 				reply.code(400);
 				return;
@@ -144,7 +143,7 @@ export class SignupApiService {
 			}
 
 			// メアド認証が有効の場合
-			if (instance.emailRequiredForSignup) {
+			if (this.meta.emailRequiredForSignup) {
 				// メアド認証済みならエラー
 				if (ticket.usedBy) {
 					reply.code(400);
@@ -162,7 +161,7 @@ export class SignupApiService {
 			}
 		}
 
-		if (instance.emailRequiredForSignup) {
+		if (this.meta.emailRequiredForSignup) {
 			if (await this.usersRepository.exists({ where: { usernameLower: username.toLowerCase(), host: IsNull() } })) {
 				throw new FastifyReplyError(400, 'DUPLICATED_USERNAME');
 			}
@@ -172,7 +171,7 @@ export class SignupApiService {
 				throw new FastifyReplyError(400, 'USED_USERNAME');
 			}
 
-			const isPreserved = instance.preservedUsernames.map(x => x.toLowerCase()).includes(username.toLowerCase());
+			const isPreserved = this.meta.preservedUsernames.map(x => x.toLowerCase()).includes(username.toLowerCase());
 			if (isPreserved) {
 				throw new FastifyReplyError(400, 'DENIED_USERNAME');
 			}
diff --git a/packages/backend/src/server/api/endpoints/ap/show.ts b/packages/backend/src/server/api/endpoints/ap/show.ts
index d3c40dba59..577ca0b24c 100644
--- a/packages/backend/src/server/api/endpoints/ap/show.ts
+++ b/packages/backend/src/server/api/endpoints/ap/show.ts
@@ -3,7 +3,7 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-import { Injectable } from '@nestjs/common';
+import { Inject, Injectable } from '@nestjs/common';
 import ms from 'ms';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import type { MiNote } from '@/models/Note.js';
@@ -12,7 +12,6 @@ import { isActor, isPost, getApId } from '@/core/activitypub/type.js';
 import type { SchemaType } from '@/misc/json-schema.js';
 import { ApResolverService } from '@/core/activitypub/ApResolverService.js';
 import { ApDbResolverService } from '@/core/activitypub/ApDbResolverService.js';
-import { MetaService } from '@/core/MetaService.js';
 import { ApPersonService } from '@/core/activitypub/models/ApPersonService.js';
 import { ApNoteService } from '@/core/activitypub/models/ApNoteService.js';
 import { UserEntityService } from '@/core/entities/UserEntityService.js';
@@ -20,6 +19,8 @@ import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
 import { UtilityService } from '@/core/UtilityService.js';
 import { bindThis } from '@/decorators.js';
 import { ApiError } from '../../error.js';
+import { MiMeta } from '@/models/_.js';
+import { DI } from '@/di-symbols.js';
 
 export const meta = {
 	tags: ['federation'],
@@ -88,10 +89,12 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
+		@Inject(DI.meta)
+		private serverSettings: MiMeta,
+
 		private utilityService: UtilityService,
 		private userEntityService: UserEntityService,
 		private noteEntityService: NoteEntityService,
-		private metaService: MetaService,
 		private apResolverService: ApResolverService,
 		private apDbResolverService: ApDbResolverService,
 		private apPersonService: ApPersonService,
@@ -112,9 +115,8 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 	 */
 	@bindThis
 	private async fetchAny(uri: string, me: MiLocalUser | null | undefined): Promise<SchemaType<typeof meta['res']> | null> {
-	// ブロックしてたら中断
-		const fetchedMeta = await this.metaService.fetch();
-		if (this.utilityService.isBlockedHost(fetchedMeta.blockedHosts, this.utilityService.extractDbHost(uri))) return null;
+		// ブロックしてたら中断
+		if (this.utilityService.isBlockedHost(this.serverSettings.blockedHosts, this.utilityService.extractDbHost(uri))) return null;
 
 		let local = await this.mergePack(me, ...await Promise.all([
 			this.apDbResolverService.getUserFromApId(uri),
diff --git a/packages/backend/src/server/api/endpoints/drive.ts b/packages/backend/src/server/api/endpoints/drive.ts
index 7e9b0fa0e1..eb45e29f9e 100644
--- a/packages/backend/src/server/api/endpoints/drive.ts
+++ b/packages/backend/src/server/api/endpoints/drive.ts
@@ -5,7 +5,6 @@
 
 import { Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
-import { MetaService } from '@/core/MetaService.js';
 import { DriveFileEntityService } from '@/core/entities/DriveFileEntityService.js';
 import { RoleService } from '@/core/RoleService.js';
 
@@ -41,14 +40,10 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
-		private metaService: MetaService,
 		private driveFileEntityService: DriveFileEntityService,
 		private roleService: RoleService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
-			const instance = await this.metaService.fetch(true);
-
-			// Calculate drive usage
 			const usage = await this.driveFileEntityService.calcDriveUsageOf(me.id);
 
 			const policies = await this.roleService.getUserPolicies(me.id);
diff --git a/packages/backend/src/server/api/endpoints/drive/files/create.ts b/packages/backend/src/server/api/endpoints/drive/files/create.ts
index 9c17f93ab2..74eb4dded7 100644
--- a/packages/backend/src/server/api/endpoints/drive/files/create.ts
+++ b/packages/backend/src/server/api/endpoints/drive/files/create.ts
@@ -4,14 +4,15 @@
  */
 
 import ms from 'ms';
-import { Injectable } from '@nestjs/common';
+import { Inject, Injectable } from '@nestjs/common';
 import { DB_MAX_IMAGE_COMMENT_LENGTH } from '@/const.js';
 import { IdentifiableError } from '@/misc/identifiable-error.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { DriveFileEntityService } from '@/core/entities/DriveFileEntityService.js';
-import { MetaService } from '@/core/MetaService.js';
 import { DriveService } from '@/core/DriveService.js';
 import { ApiError } from '../../../error.js';
+import { MiMeta } from '@/models/_.js';
+import { DI } from '@/di-symbols.js';
 
 export const meta = {
 	tags: ['drive'],
@@ -73,8 +74,10 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
+		@Inject(DI.meta)
+		private serverSettings: MiMeta,
+
 		private driveFileEntityService: DriveFileEntityService,
-		private metaService: MetaService,
 		private driveService: DriveService,
 	) {
 		super(meta, paramDef, async (ps, me, _, file, cleanup, ip, headers) => {
@@ -91,8 +94,6 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				}
 			}
 
-			const instance = await this.metaService.fetch();
-
 			try {
 				// Create file
 				const driveFile = await this.driveService.addFile({
@@ -103,8 +104,8 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 					folderId: ps.folderId,
 					force: ps.force,
 					sensitive: ps.isSensitive,
-					requestIp: instance.enableIpLogging ? ip : null,
-					requestHeaders: instance.enableIpLogging ? headers : null,
+					requestIp: this.serverSettings.enableIpLogging ? ip : null,
+					requestHeaders: this.serverSettings.enableIpLogging ? headers : null,
 				});
 				return await this.driveFileEntityService.pack(driveFile, { self: true });
 			} catch (err) {
diff --git a/packages/backend/src/server/api/endpoints/i/update-email.ts b/packages/backend/src/server/api/endpoints/i/update-email.ts
index eea657ebbd..da1faee30d 100644
--- a/packages/backend/src/server/api/endpoints/i/update-email.ts
+++ b/packages/backend/src/server/api/endpoints/i/update-email.ts
@@ -7,7 +7,7 @@ import { Inject, Injectable } from '@nestjs/common';
 import ms from 'ms';
 import bcrypt from 'bcryptjs';
 import { Endpoint } from '@/server/api/endpoint-base.js';
-import type { UserProfilesRepository } from '@/models/_.js';
+import type { MiMeta, UserProfilesRepository } from '@/models/_.js';
 import { UserEntityService } from '@/core/entities/UserEntityService.js';
 import { EmailService } from '@/core/EmailService.js';
 import type { Config } from '@/config.js';
@@ -15,7 +15,6 @@ import { DI } from '@/di-symbols.js';
 import { GlobalEventService } from '@/core/GlobalEventService.js';
 import { L_CHARS, secureRndstr } from '@/misc/secure-rndstr.js';
 import { UserAuthService } from '@/core/UserAuthService.js';
-import { MetaService } from '@/core/MetaService.js';
 import { ApiError } from '../../error.js';
 
 export const meta = {
@@ -70,10 +69,12 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		@Inject(DI.config)
 		private config: Config,
 
+		@Inject(DI.meta)
+		private serverSettings: MiMeta,
+
 		@Inject(DI.userProfilesRepository)
 		private userProfilesRepository: UserProfilesRepository,
 
-		private metaService: MetaService,
 		private userEntityService: UserEntityService,
 		private emailService: EmailService,
 		private userAuthService: UserAuthService,
@@ -105,7 +106,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				if (!res.available) {
 					throw new ApiError(meta.errors.unavailable);
 				}
-			} else if ((await this.metaService.fetch()).emailRequiredForSignup) {
+			} else if (this.serverSettings.emailRequiredForSignup) {
 				throw new ApiError(meta.errors.emailRequired);
 			}
 
diff --git a/packages/backend/src/server/api/endpoints/notes/hybrid-timeline.ts b/packages/backend/src/server/api/endpoints/notes/hybrid-timeline.ts
index 2a2c659942..aed9065bf9 100644
--- a/packages/backend/src/server/api/endpoints/notes/hybrid-timeline.ts
+++ b/packages/backend/src/server/api/endpoints/notes/hybrid-timeline.ts
@@ -5,7 +5,7 @@
 
 import { Brackets } from 'typeorm';
 import { Inject, Injectable } from '@nestjs/common';
-import type { NotesRepository, ChannelFollowingsRepository } from '@/models/_.js';
+import type { NotesRepository, ChannelFollowingsRepository, MiMeta } from '@/models/_.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import ActiveUsersChart from '@/core/chart/charts/active-users.js';
 import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
@@ -16,7 +16,6 @@ import { CacheService } from '@/core/CacheService.js';
 import { FanoutTimelineName } from '@/core/FanoutTimelineService.js';
 import { QueryService } from '@/core/QueryService.js';
 import { UserFollowingService } from '@/core/UserFollowingService.js';
-import { MetaService } from '@/core/MetaService.js';
 import { MiLocalUser } from '@/models/User.js';
 import { FanoutTimelineEndpointService } from '@/core/FanoutTimelineEndpointService.js';
 import { ApiError } from '../../error.js';
@@ -74,6 +73,9 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
+		@Inject(DI.meta)
+		private serverSettings: MiMeta,
+
 		@Inject(DI.notesRepository)
 		private notesRepository: NotesRepository,
 
@@ -87,7 +89,6 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private cacheService: CacheService,
 		private queryService: QueryService,
 		private userFollowingService: UserFollowingService,
-		private metaService: MetaService,
 		private fanoutTimelineEndpointService: FanoutTimelineEndpointService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
@@ -101,9 +102,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 
 			if (ps.withReplies && ps.withFiles) throw new ApiError(meta.errors.bothWithRepliesAndWithFiles);
 
-			const serverSettings = await this.metaService.fetch();
-
-			if (!serverSettings.enableFanoutTimeline) {
+			if (!this.serverSettings.enableFanoutTimeline) {
 				const timeline = await this.getFromDb({
 					untilId,
 					sinceId,
@@ -156,7 +155,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				allowPartial: ps.allowPartial,
 				me,
 				redisTimelines: timelineConfig,
-				useDbFallback: serverSettings.enableFanoutTimelineDbFallback,
+				useDbFallback: this.serverSettings.enableFanoutTimelineDbFallback,
 				alwaysIncludeMyNotes: true,
 				excludePureRenotes: !ps.withRenotes,
 				noteFilter: note => {
diff --git a/packages/backend/src/server/api/endpoints/notes/local-timeline.ts b/packages/backend/src/server/api/endpoints/notes/local-timeline.ts
index be82b5a8a7..0b48f2c78b 100644
--- a/packages/backend/src/server/api/endpoints/notes/local-timeline.ts
+++ b/packages/backend/src/server/api/endpoints/notes/local-timeline.ts
@@ -5,16 +5,14 @@
 
 import { Brackets } from 'typeorm';
 import { Inject, Injectable } from '@nestjs/common';
-import type { NotesRepository } from '@/models/_.js';
+import type { MiMeta, NotesRepository } from '@/models/_.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
 import ActiveUsersChart from '@/core/chart/charts/active-users.js';
 import { DI } from '@/di-symbols.js';
 import { RoleService } from '@/core/RoleService.js';
 import { IdService } from '@/core/IdService.js';
-import { CacheService } from '@/core/CacheService.js';
 import { QueryService } from '@/core/QueryService.js';
-import { MetaService } from '@/core/MetaService.js';
 import { MiLocalUser } from '@/models/User.js';
 import { FanoutTimelineEndpointService } from '@/core/FanoutTimelineEndpointService.js';
 import { ApiError } from '../../error.js';
@@ -66,6 +64,9 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
+		@Inject(DI.meta)
+		private serverSettings: MiMeta,
+
 		@Inject(DI.notesRepository)
 		private notesRepository: NotesRepository,
 
@@ -73,10 +74,8 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private roleService: RoleService,
 		private activeUsersChart: ActiveUsersChart,
 		private idService: IdService,
-		private cacheService: CacheService,
 		private fanoutTimelineEndpointService: FanoutTimelineEndpointService,
 		private queryService: QueryService,
-		private metaService: MetaService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			const untilId = ps.untilId ?? (ps.untilDate ? this.idService.gen(ps.untilDate!) : null);
@@ -89,9 +88,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 
 			if (ps.withReplies && ps.withFiles) throw new ApiError(meta.errors.bothWithRepliesAndWithFiles);
 
-			const serverSettings = await this.metaService.fetch();
-
-			if (!serverSettings.enableFanoutTimeline) {
+			if (!this.serverSettings.enableFanoutTimeline) {
 				const timeline = await this.getFromDb({
 					untilId,
 					sinceId,
@@ -115,7 +112,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				limit: ps.limit,
 				allowPartial: ps.allowPartial,
 				me,
-				useDbFallback: serverSettings.enableFanoutTimelineDbFallback,
+				useDbFallback: this.serverSettings.enableFanoutTimelineDbFallback,
 				redisTimelines:
 					ps.withFiles ? ['localTimelineWithFiles']
 					: ps.withReplies ? ['localTimeline', 'localTimelineWithReplies']
diff --git a/packages/backend/src/server/api/endpoints/notes/timeline.ts b/packages/backend/src/server/api/endpoints/notes/timeline.ts
index c9b43b5359..7cb11cc1eb 100644
--- a/packages/backend/src/server/api/endpoints/notes/timeline.ts
+++ b/packages/backend/src/server/api/endpoints/notes/timeline.ts
@@ -5,7 +5,7 @@
 
 import { Brackets } from 'typeorm';
 import { Inject, Injectable } from '@nestjs/common';
-import type { NotesRepository, ChannelFollowingsRepository } from '@/models/_.js';
+import type { NotesRepository, ChannelFollowingsRepository, MiMeta } from '@/models/_.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { QueryService } from '@/core/QueryService.js';
 import ActiveUsersChart from '@/core/chart/charts/active-users.js';
@@ -15,7 +15,6 @@ import { IdService } from '@/core/IdService.js';
 import { CacheService } from '@/core/CacheService.js';
 import { UserFollowingService } from '@/core/UserFollowingService.js';
 import { MiLocalUser } from '@/models/User.js';
-import { MetaService } from '@/core/MetaService.js';
 import { FanoutTimelineEndpointService } from '@/core/FanoutTimelineEndpointService.js';
 
 export const meta = {
@@ -56,6 +55,9 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
+		@Inject(DI.meta)
+		private serverSettings: MiMeta,
+
 		@Inject(DI.notesRepository)
 		private notesRepository: NotesRepository,
 
@@ -69,15 +71,12 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private fanoutTimelineEndpointService: FanoutTimelineEndpointService,
 		private userFollowingService: UserFollowingService,
 		private queryService: QueryService,
-		private metaService: MetaService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			const untilId = ps.untilId ?? (ps.untilDate ? this.idService.gen(ps.untilDate!) : null);
 			const sinceId = ps.sinceId ?? (ps.sinceDate ? this.idService.gen(ps.sinceDate!) : null);
 
-			const serverSettings = await this.metaService.fetch();
-
-			if (!serverSettings.enableFanoutTimeline) {
+			if (!this.serverSettings.enableFanoutTimeline) {
 				const timeline = await this.getFromDb({
 					untilId,
 					sinceId,
@@ -108,7 +107,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				limit: ps.limit,
 				allowPartial: ps.allowPartial,
 				me,
-				useDbFallback: serverSettings.enableFanoutTimelineDbFallback,
+				useDbFallback: this.serverSettings.enableFanoutTimelineDbFallback,
 				redisTimelines: ps.withFiles ? [`homeTimelineWithFiles:${me.id}`] : [`homeTimeline:${me.id}`],
 				alwaysIncludeMyNotes: true,
 				excludePureRenotes: !ps.withRenotes,
diff --git a/packages/backend/src/server/api/endpoints/notes/translate.ts b/packages/backend/src/server/api/endpoints/notes/translate.ts
index 38a9660aa2..e9a6a36b02 100644
--- a/packages/backend/src/server/api/endpoints/notes/translate.ts
+++ b/packages/backend/src/server/api/endpoints/notes/translate.ts
@@ -4,14 +4,15 @@
  */
 
 import { URLSearchParams } from 'node:url';
-import { Injectable } from '@nestjs/common';
+import { Inject, Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
-import { MetaService } from '@/core/MetaService.js';
 import { HttpRequestService } from '@/core/HttpRequestService.js';
 import { GetterService } from '@/server/api/GetterService.js';
 import { RoleService } from '@/core/RoleService.js';
 import { ApiError } from '../../error.js';
+import { MiMeta } from '@/models/_.js';
+import { DI } from '@/di-symbols.js';
 
 export const meta = {
 	tags: ['notes'],
@@ -59,9 +60,11 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
+		@Inject(DI.meta)
+		private serverSettings: MiMeta,
+
 		private noteEntityService: NoteEntityService,
 		private getterService: GetterService,
-		private metaService: MetaService,
 		private httpRequestService: HttpRequestService,
 		private roleService: RoleService,
 	) {
@@ -84,9 +87,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				return;
 			}
 
-			const instance = await this.metaService.fetch();
-
-			if (instance.deeplAuthKey == null) {
+			if (this.serverSettings.deeplAuthKey == null) {
 				throw new ApiError(meta.errors.unavailable);
 			}
 
@@ -94,11 +95,11 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			if (targetLang.includes('-')) targetLang = targetLang.split('-')[0];
 
 			const params = new URLSearchParams();
-			params.append('auth_key', instance.deeplAuthKey);
+			params.append('auth_key', this.serverSettings.deeplAuthKey);
 			params.append('text', note.text);
 			params.append('target_lang', targetLang);
 
-			const endpoint = instance.deeplIsPro ? 'https://api.deepl.com/v2/translate' : 'https://api-free.deepl.com/v2/translate';
+			const endpoint = this.serverSettings.deeplIsPro ? 'https://api.deepl.com/v2/translate' : 'https://api-free.deepl.com/v2/translate';
 
 			const res = await this.httpRequestService.send(endpoint, {
 				method: 'POST',
diff --git a/packages/backend/src/server/api/endpoints/notes/user-list-timeline.ts b/packages/backend/src/server/api/endpoints/notes/user-list-timeline.ts
index 43877e61ef..6c7185c9eb 100644
--- a/packages/backend/src/server/api/endpoints/notes/user-list-timeline.ts
+++ b/packages/backend/src/server/api/endpoints/notes/user-list-timeline.ts
@@ -5,16 +5,14 @@
 
 import { Inject, Injectable } from '@nestjs/common';
 import { Brackets } from 'typeorm';
-import type { MiUserList, NotesRepository, UserListMembershipsRepository, UserListsRepository } from '@/models/_.js';
+import type { MiMeta, MiUserList, NotesRepository, UserListMembershipsRepository, UserListsRepository } from '@/models/_.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
 import ActiveUsersChart from '@/core/chart/charts/active-users.js';
 import { DI } from '@/di-symbols.js';
-import { CacheService } from '@/core/CacheService.js';
 import { IdService } from '@/core/IdService.js';
 import { QueryService } from '@/core/QueryService.js';
 import { MiLocalUser } from '@/models/User.js';
-import { MetaService } from '@/core/MetaService.js';
 import { FanoutTimelineEndpointService } from '@/core/FanoutTimelineEndpointService.js';
 import { ApiError } from '../../error.js';
 
@@ -69,6 +67,9 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
+		@Inject(DI.meta)
+		private serverSettings: MiMeta,
+
 		@Inject(DI.notesRepository)
 		private notesRepository: NotesRepository,
 
@@ -80,11 +81,9 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 
 		private noteEntityService: NoteEntityService,
 		private activeUsersChart: ActiveUsersChart,
-		private cacheService: CacheService,
 		private idService: IdService,
 		private fanoutTimelineEndpointService: FanoutTimelineEndpointService,
 		private queryService: QueryService,
-		private metaService: MetaService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			const untilId = ps.untilId ?? (ps.untilDate ? this.idService.gen(ps.untilDate!) : null);
@@ -99,9 +98,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				throw new ApiError(meta.errors.noSuchList);
 			}
 
-			const serverSettings = await this.metaService.fetch();
-
-			if (!serverSettings.enableFanoutTimeline) {
+			if (!this.serverSettings.enableFanoutTimeline) {
 				const timeline = await this.getFromDb(list, {
 					untilId,
 					sinceId,
@@ -124,7 +121,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				limit: ps.limit,
 				allowPartial: ps.allowPartial,
 				me,
-				useDbFallback: serverSettings.enableFanoutTimelineDbFallback,
+				useDbFallback: this.serverSettings.enableFanoutTimelineDbFallback,
 				redisTimelines: ps.withFiles ? [`userListTimelineWithFiles:${list.id}`] : [`userListTimeline:${list.id}`],
 				alwaysIncludeMyNotes: true,
 				excludePureRenotes: !ps.withRenotes,
diff --git a/packages/backend/src/server/api/endpoints/pinned-users.ts b/packages/backend/src/server/api/endpoints/pinned-users.ts
index 15832ef7f8..5b0b656c63 100644
--- a/packages/backend/src/server/api/endpoints/pinned-users.ts
+++ b/packages/backend/src/server/api/endpoints/pinned-users.ts
@@ -5,11 +5,10 @@
 
 import { IsNull } from 'typeorm';
 import { Inject, Injectable } from '@nestjs/common';
-import type { UsersRepository } from '@/models/_.js';
+import type { MiMeta, UsersRepository } from '@/models/_.js';
 import * as Acct from '@/misc/acct.js';
 import type { MiUser } from '@/models/User.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
-import { MetaService } from '@/core/MetaService.js';
 import { UserEntityService } from '@/core/entities/UserEntityService.js';
 import { DI } from '@/di-symbols.js';
 
@@ -38,16 +37,16 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
+		@Inject(DI.meta)
+		private serverSettings: MiMeta,
+
 		@Inject(DI.usersRepository)
 		private usersRepository: UsersRepository,
 
-		private metaService: MetaService,
 		private userEntityService: UserEntityService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
-			const meta = await this.metaService.fetch();
-
-			const users = await Promise.all(meta.pinnedUsers.map(acct => Acct.parse(acct)).map(acct => this.usersRepository.findOneBy({
+			const users = await Promise.all(this.serverSettings.pinnedUsers.map(acct => Acct.parse(acct)).map(acct => this.usersRepository.findOneBy({
 				usernameLower: acct.username.toLowerCase(),
 				host: acct.host ?? IsNull(),
 			})));
diff --git a/packages/backend/src/server/api/endpoints/server-info.ts b/packages/backend/src/server/api/endpoints/server-info.ts
index c13802eb06..8301c85f2e 100644
--- a/packages/backend/src/server/api/endpoints/server-info.ts
+++ b/packages/backend/src/server/api/endpoints/server-info.ts
@@ -5,9 +5,10 @@
 
 import * as os from 'node:os';
 import si from 'systeminformation';
-import { Injectable } from '@nestjs/common';
+import { Inject, Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
-import { MetaService } from '@/core/MetaService.js';
+import { MiMeta } from '@/models/_.js';
+import { DI } from '@/di-symbols.js';
 
 export const meta = {
 	requireCredential: false,
@@ -73,10 +74,11 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
-		private metaService: MetaService,
+		@Inject(DI.meta)
+		private serverSettings: MiMeta,
 	) {
 		super(meta, paramDef, async () => {
-			if (!(await this.metaService.fetch()).enableServerMachineStats) return {
+			if (!this.serverSettings.enableServerMachineStats) return {
 				machine: '?',
 				cpu: {
 					model: '?',
diff --git a/packages/backend/src/server/api/endpoints/sw/register.ts b/packages/backend/src/server/api/endpoints/sw/register.ts
index a9a33149f9..fd76df2d3c 100644
--- a/packages/backend/src/server/api/endpoints/sw/register.ts
+++ b/packages/backend/src/server/api/endpoints/sw/register.ts
@@ -5,9 +5,8 @@
 
 import { Inject, Injectable } from '@nestjs/common';
 import { IdService } from '@/core/IdService.js';
-import type { SwSubscriptionsRepository } from '@/models/_.js';
+import type { MiMeta, SwSubscriptionsRepository } from '@/models/_.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
-import { MetaService } from '@/core/MetaService.js';
 import { DI } from '@/di-symbols.js';
 import { PushNotificationService } from '@/core/PushNotificationService.js';
 
@@ -62,11 +61,13 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
+		@Inject(DI.meta)
+		private serverSettings: MiMeta,
+
 		@Inject(DI.swSubscriptionsRepository)
 		private swSubscriptionsRepository: SwSubscriptionsRepository,
 
 		private idService: IdService,
-		private metaService: MetaService,
 		private pushNotificationService: PushNotificationService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
@@ -78,12 +79,10 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				publickey: ps.publickey,
 			});
 
-			const instance = await this.metaService.fetch(true);
-
 			if (exist != null) {
 				return {
 					state: 'already-subscribed' as const,
-					key: instance.swPublicKey,
+					key: this.serverSettings.swPublicKey,
 					userId: me.id,
 					endpoint: exist.endpoint,
 					sendReadMessage: exist.sendReadMessage,
@@ -103,7 +102,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 
 			return {
 				state: 'subscribed' as const,
-				key: instance.swPublicKey,
+				key: this.serverSettings.swPublicKey,
 				userId: me.id,
 				endpoint: ps.endpoint,
 				sendReadMessage: ps.sendReadMessage,
diff --git a/packages/backend/src/server/api/endpoints/username/available.ts b/packages/backend/src/server/api/endpoints/username/available.ts
index affb0996f1..4944be9b05 100644
--- a/packages/backend/src/server/api/endpoints/username/available.ts
+++ b/packages/backend/src/server/api/endpoints/username/available.ts
@@ -5,11 +5,10 @@
 
 import { IsNull } from 'typeorm';
 import { Inject, Injectable } from '@nestjs/common';
-import type { UsedUsernamesRepository, UsersRepository } from '@/models/_.js';
+import type { MiMeta, UsedUsernamesRepository, UsersRepository } from '@/models/_.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { localUsernameSchema } from '@/models/User.js';
 import { DI } from '@/di-symbols.js';
-import { MetaService } from '@/core/MetaService.js';
 
 export const meta = {
 	tags: ['users'],
@@ -39,13 +38,14 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
+		@Inject(DI.meta)
+		private serverSettings: MiMeta,
+
 		@Inject(DI.usersRepository)
 		private usersRepository: UsersRepository,
 
 		@Inject(DI.usedUsernamesRepository)
 		private usedUsernamesRepository: UsedUsernamesRepository,
-
-		private metaService: MetaService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			const exist = await this.usersRepository.countBy({
@@ -55,8 +55,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 
 			const exist2 = await this.usedUsernamesRepository.countBy({ username: ps.username.toLowerCase() });
 
-			const meta = await this.metaService.fetch();
-			const isPreserved = meta.preservedUsernames.map(x => x.toLowerCase()).includes(ps.username.toLowerCase());
+			const isPreserved = this.serverSettings.preservedUsernames.map(x => x.toLowerCase()).includes(ps.username.toLowerCase());
 
 			return {
 				available: exist === 0 && exist2 === 0 && !isPreserved,
diff --git a/packages/backend/src/server/api/endpoints/users/notes.ts b/packages/backend/src/server/api/endpoints/users/notes.ts
index cc76c12f1d..7fc11ba369 100644
--- a/packages/backend/src/server/api/endpoints/users/notes.ts
+++ b/packages/backend/src/server/api/endpoints/users/notes.ts
@@ -5,14 +5,13 @@
 
 import { Brackets } from 'typeorm';
 import { Inject, Injectable } from '@nestjs/common';
-import type { NotesRepository } from '@/models/_.js';
+import type { MiMeta, NotesRepository } from '@/models/_.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
 import { DI } from '@/di-symbols.js';
 import { CacheService } from '@/core/CacheService.js';
 import { IdService } from '@/core/IdService.js';
 import { QueryService } from '@/core/QueryService.js';
-import { MetaService } from '@/core/MetaService.js';
 import { MiLocalUser } from '@/models/User.js';
 import { FanoutTimelineEndpointService } from '@/core/FanoutTimelineEndpointService.js';
 import { FanoutTimelineName } from '@/core/FanoutTimelineService.js';
@@ -67,6 +66,9 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
+		@Inject(DI.meta)
+		private serverSettings: MiMeta,
+
 		@Inject(DI.notesRepository)
 		private notesRepository: NotesRepository,
 
@@ -75,15 +77,12 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private cacheService: CacheService,
 		private idService: IdService,
 		private fanoutTimelineEndpointService: FanoutTimelineEndpointService,
-		private metaService: MetaService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			const untilId = ps.untilId ?? (ps.untilDate ? this.idService.gen(ps.untilDate!) : null);
 			const sinceId = ps.sinceId ?? (ps.sinceDate ? this.idService.gen(ps.sinceDate!) : null);
 			const isSelf = me && (me.id === ps.userId);
 
-			const serverSettings = await this.metaService.fetch();
-
 			if (ps.withReplies && ps.withFiles) throw new ApiError(meta.errors.bothWithRepliesAndWithFiles);
 
 			// early return if me is blocked by requesting user
@@ -94,7 +93,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				}
 			}
 
-			if (!serverSettings.enableFanoutTimeline) {
+			if (!this.serverSettings.enableFanoutTimeline) {
 				const timeline = await this.getFromDb({
 					untilId,
 					sinceId,
diff --git a/packages/backend/src/server/web/ClientServerService.ts b/packages/backend/src/server/web/ClientServerService.ts
index 1e4be66002..d8f142f1ae 100644
--- a/packages/backend/src/server/web/ClientServerService.ts
+++ b/packages/backend/src/server/web/ClientServerService.ts
@@ -130,32 +130,30 @@ export class ClientServerService {
 
 	@bindThis
 	private async manifestHandler(reply: FastifyReply) {
-		const instance = await this.metaService.fetch(true);
-
 		let manifest = {
 			// 空文字列の場合右辺を使いたいため
 			// eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
-			'short_name': instance.shortName || instance.name || this.config.host,
+			'short_name': this.meta.shortName || this.meta.name || this.config.host,
 			// 空文字列の場合右辺を使いたいため
 			// eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
-			'name': instance.name || this.config.host,
+			'name': this.meta.name || this.config.host,
 			'start_url': '/',
 			'display': 'standalone',
 			'background_color': '#313a42',
 			// 空文字列の場合右辺を使いたいため
 			// eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
-			'theme_color': instance.themeColor || '#86b300',
+			'theme_color': this.meta.themeColor || '#86b300',
 			'icons': [{
 				// 空文字列の場合右辺を使いたいため
 				// eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
-				'src': instance.app192IconUrl || '/static-assets/icons/192.png',
+				'src': this.meta.app192IconUrl || '/static-assets/icons/192.png',
 				'sizes': '192x192',
 				'type': 'image/png',
 				'purpose': 'maskable',
 			}, {
 				// 空文字列の場合右辺を使いたいため
 				// eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
-				'src': instance.app512IconUrl || '/static-assets/icons/512.png',
+				'src': this.meta.app512IconUrl || '/static-assets/icons/512.png',
 				'sizes': '512x512',
 				'type': 'image/png',
 				'purpose': 'maskable',
@@ -179,7 +177,7 @@ export class ClientServerService {
 
 		manifest = {
 			...manifest,
-			...JSON.parse(instance.manifestJsonOverride === '' ? '{}' : instance.manifestJsonOverride),
+			...JSON.parse(this.meta.manifestJsonOverride === '' ? '{}' : this.meta.manifestJsonOverride),
 		};
 
 		reply.header('Cache-Control', 'max-age=300');
diff --git a/packages/backend/src/server/web/UrlPreviewService.ts b/packages/backend/src/server/web/UrlPreviewService.ts
index 8f8f08a305..5d493c2c46 100644
--- a/packages/backend/src/server/web/UrlPreviewService.ts
+++ b/packages/backend/src/server/web/UrlPreviewService.ts
@@ -8,7 +8,6 @@ import { summaly } from '@misskey-dev/summaly';
 import { SummalyResult } from '@misskey-dev/summaly/built/summary.js';
 import { DI } from '@/di-symbols.js';
 import type { Config } from '@/config.js';
-import { MetaService } from '@/core/MetaService.js';
 import { HttpRequestService } from '@/core/HttpRequestService.js';
 import type Logger from '@/logger.js';
 import { query } from '@/misc/prelude/url.js';
@@ -26,7 +25,9 @@ export class UrlPreviewService {
 		@Inject(DI.config)
 		private config: Config,
 
-		private metaService: MetaService,
+		@Inject(DI.meta)
+		private meta: MiMeta,
+
 		private httpRequestService: HttpRequestService,
 		private loggerService: LoggerService,
 	) {
@@ -62,9 +63,7 @@ export class UrlPreviewService {
 			return;
 		}
 
-		const meta = await this.metaService.fetch();
-
-		if (!meta.urlPreviewEnabled) {
+		if (!this.meta.urlPreviewEnabled) {
 			reply.code(403);
 			return {
 				error: new ApiError({
@@ -75,14 +74,14 @@ export class UrlPreviewService {
 			};
 		}
 
-		this.logger.info(meta.urlPreviewSummaryProxyUrl
+		this.logger.info(this.meta.urlPreviewSummaryProxyUrl
 			? `(Proxy) Getting preview of ${url}@${lang} ...`
 			: `Getting preview of ${url}@${lang} ...`);
 
 		try {
-			const summary = meta.urlPreviewSummaryProxyUrl
-				? await this.fetchSummaryFromProxy(url, meta, lang)
-				: await this.fetchSummary(url, meta, lang);
+			const summary = this.meta.urlPreviewSummaryProxyUrl
+				? await this.fetchSummaryFromProxy(url, this.meta, lang)
+				: await this.fetchSummary(url, this.meta, lang);
 
 			this.logger.succ(`Got preview of ${url}: ${summary.title}`);