diff --git a/packages/backend/src/apps/github/auth/generate-auth-url.ts b/packages/backend/src/apps/github/auth/generate-auth-url.ts
index 32587ecc..0c7ea8ac 100644
--- a/packages/backend/src/apps/github/auth/generate-auth-url.ts
+++ b/packages/backend/src/apps/github/auth/generate-auth-url.ts
@@ -13,9 +13,8 @@ export default async function generateAuthUrl($: IGlobalVariable) {
     scope: scopes.join(','),
   });
 
-  const url = `${
-    $.app.baseUrl
-  }/login/oauth/authorize?${searchParams.toString()}`;
+  const url = `${$.app.baseUrl
+    }/login/oauth/authorize?${searchParams.toString()}`;
 
   await $.auth.set({
     url,
diff --git a/packages/backend/src/apps/todoist/auth/generate-auth-url.ts b/packages/backend/src/apps/todoist/auth/generate-auth-url.ts
new file mode 100644
index 00000000..fb945f00
--- /dev/null
+++ b/packages/backend/src/apps/todoist/auth/generate-auth-url.ts
@@ -0,0 +1,17 @@
+import { IGlobalVariable } from '@automatisch/types';
+import { URLSearchParams } from 'url';
+
+export default async function generateAuthUrl($: IGlobalVariable) {
+  const scopes = ['data:read_write'];
+  const searchParams = new URLSearchParams({
+    client_id: $.auth.data.clientId as string,
+    scope: scopes.join(','),
+  });
+
+  const url = `${$.app.baseUrl
+    }/oauth/authorize?${searchParams.toString()}`;
+
+  await $.auth.set({
+    url,
+  });
+}
diff --git a/packages/backend/src/apps/todoist/auth/index.ts b/packages/backend/src/apps/todoist/auth/index.ts
index fdf3d552..81b38610 100644
--- a/packages/backend/src/apps/todoist/auth/index.ts
+++ b/packages/backend/src/apps/todoist/auth/index.ts
@@ -1,3 +1,4 @@
+import generateAuthUrl from './generate-auth-url';
 import verifyCredentials from './verify-credentials';
 import isStillVerified from './is-still-verified';
 
@@ -16,19 +17,30 @@ export default {
       clickToCopy: false,
     },
     {
-      key: 'apiToken',
-      label: 'API Token',
+      key: 'clientId',
+      label: 'Client ID',
       type: 'string' as const,
       required: true,
       readOnly: false,
       value: null,
       placeholder: null,
-      description:
-        'Your Todoist API token. See https://todoist.com/app/settings/integrations/developer',
+      description: null,
+      clickToCopy: false,
+    },
+    {
+      key: 'clientSecret',
+      label: 'Client Secret',
+      type: 'string' as const,
+      required: true,
+      readOnly: false,
+      value: null,
+      placeholder: null,
+      description: null,
       clickToCopy: false,
     },
   ],
 
+  generateAuthUrl,
   verifyCredentials,
   isStillVerified,
 };
diff --git a/packages/backend/src/apps/todoist/auth/is-still-verified.ts b/packages/backend/src/apps/todoist/auth/is-still-verified.ts
index 66bb963e..70e9a473 100644
--- a/packages/backend/src/apps/todoist/auth/is-still-verified.ts
+++ b/packages/backend/src/apps/todoist/auth/is-still-verified.ts
@@ -1,8 +1,7 @@
 import { IGlobalVariable } from '@automatisch/types';
-import verifyCredentials from './verify-credentials';
 
 const isStillVerified = async ($: IGlobalVariable) => {
-  await verifyCredentials($);
+  await $.http.get('/projects');
   return true;
 };
 
diff --git a/packages/backend/src/apps/todoist/auth/verify-credentials.ts b/packages/backend/src/apps/todoist/auth/verify-credentials.ts
index 7b8c386a..3765a897 100644
--- a/packages/backend/src/apps/todoist/auth/verify-credentials.ts
+++ b/packages/backend/src/apps/todoist/auth/verify-credentials.ts
@@ -1,7 +1,19 @@
 import { IGlobalVariable } from '@automatisch/types';
 
 const verifyCredentials = async ($: IGlobalVariable) => {
-  await $.http.get('/projects');
+  const { data } = await $.http.post(
+    `${$.app.baseUrl}/oauth/access_token`,
+    {
+      client_id: $.auth.data.clientId,
+      client_secret: $.auth.data.clientSecret,
+      code: $.auth.data.code,
+    },
+  );
+
+  await $.auth.set({
+    tokenType: data.token_type,
+    accessToken: data.access_token,
+  });
 };
 
 export default verifyCredentials;
diff --git a/packages/backend/src/apps/todoist/common/add-auth-header.ts b/packages/backend/src/apps/todoist/common/add-auth-header.ts
index dfb6a786..aafa214b 100644
--- a/packages/backend/src/apps/todoist/common/add-auth-header.ts
+++ b/packages/backend/src/apps/todoist/common/add-auth-header.ts
@@ -1,8 +1,9 @@
 import { TBeforeRequest } from '@automatisch/types';
 
 const addAuthHeader: TBeforeRequest = ($, requestConfig) => {
-  if ($.auth.data?.apiToken) {
-    const authorizationHeader = `Bearer ${$.auth.data.apiToken}`;
+  const authData = $.auth.data;
+  if (authData?.accessToken && authData?.tokenType) {
+    const authorizationHeader = `${authData.tokenType} ${authData.accessToken}`;
     requestConfig.headers.Authorization = authorizationHeader;
   }