diff --git a/packages/backend/src/apps/postgres/actions/delete/index.ts b/packages/backend/src/apps/postgres/actions/delete/index.ts
new file mode 100644
index 00000000..60e1112f
--- /dev/null
+++ b/packages/backend/src/apps/postgres/actions/delete/index.ts
@@ -0,0 +1,85 @@
+import { IJSONObject, IJSONArray } from '@automatisch/types';
+import defineAction from '../../../../helpers/define-action';
+import setConfig from '../../common/postgres-configuration';
+import setParams from '../../common/set-run-time-parameters';
+
+export default defineAction({
+  name: 'Delete',
+  key: 'delete',
+  description: 'Cteate new item in a table in specific schema in postgreSQL.',
+  arguments: [
+    {
+      label: 'Schema name',
+      key: 'schema',
+      type: 'string' as const,
+      value: 'public',
+      required: true,
+      description: 'The name of the schema.',
+      variables: false,
+    },
+    {
+      label: 'Table name',
+      key: 'table',
+      type: 'string' as const,
+      required: true,
+      description: 'The name of the table.',
+      variables: false,
+    },
+    {
+      label: 'Where statement',
+      key: 'whereStatement',
+      type: 'string' as const,
+      required: true,
+      description: 'The condition column and relational operator and condition value  - For example: id,=,1',
+      variables: true,
+    },
+    {
+      label: 'Run-time parameters',
+      key: 'params',
+      type: 'dynamic' as const,
+      required: false,
+      description: 'Change a run-time configuration parameter with command SET',
+      fields: [
+        {
+          label: 'Parameter ',
+          key: 'configParam',
+          type: 'string' as const,
+          required: true,
+          variables: false,
+        },
+        {
+          label: 'Value',
+          key: 'value',
+          type: 'string' as const,
+          required: true,
+          variables: true,
+        }
+      ],
+    }
+  ],
+
+  async run($) {
+    const pgClient = await setConfig($)
+
+    const params : any = $.step.parameters.params
+    if (params[0].configParam != '') 
+        await setParams($, pgClient)
+
+    const whereStatemennt = $.step.parameters.whereStatement as string
+    const whereParts = whereStatemennt.split(",")
+
+    const conditionColumn = whereParts[0]
+    const RelationalOperator = whereParts[1]
+    const conditionValue = whereParts[2]
+
+    const response = await pgClient(`${$.step.parameters.schema}.${$.step.parameters.table}`)
+                    .returning('*')
+                    .where(conditionColumn, RelationalOperator, conditionValue)
+                    .del() as IJSONArray
+
+    let deletedData : IJSONObject = {}
+    response.forEach( (ele: IJSONObject, i : number) => { deletedData[`record${i}`] = ele } )
+
+    $.setActionItem({ raw: deletedData as IJSONObject });    
+  },
+});
diff --git a/packages/backend/src/apps/postgres/actions/index.ts b/packages/backend/src/apps/postgres/actions/index.ts
new file mode 100644
index 00000000..b882cf42
--- /dev/null
+++ b/packages/backend/src/apps/postgres/actions/index.ts
@@ -0,0 +1,6 @@
+import insertAction from './insert';
+import updateAction from './update';
+import deleteAction from './delete';
+import SQLQuery from './sql-query'
+
+export default [insertAction, updateAction, deleteAction, SQLQuery];
diff --git a/packages/backend/src/apps/postgres/actions/insert/index.ts b/packages/backend/src/apps/postgres/actions/insert/index.ts
new file mode 100644
index 00000000..ed12b857
--- /dev/null
+++ b/packages/backend/src/apps/postgres/actions/insert/index.ts
@@ -0,0 +1,93 @@
+import { IJSONObject } from '@automatisch/types';
+import defineAction from '../../../../helpers/define-action';
+import setConfig from '../../common/postgres-configuration';
+import setParams from '../../common/set-run-time-parameters';
+
+export default defineAction({
+  name: 'Insert',
+  key: 'insert',
+  description: 'Cteate new item in a table in specific schema in postgreSQL.',
+  arguments: [
+    {
+      label: 'Schema name',
+      key: 'schema',
+      type: 'string' as const,
+      value: 'public',
+      required: true,
+      description: 'The name of the schema.',
+      variables: false,
+    },
+    {
+      label: 'Table name',
+      key: 'table',
+      type: 'string' as const,
+      required: true,
+      description: 'The name of the table.',
+      variables: false,
+    },
+    {
+      label: 'Fields',
+      key: 'fields',
+      type: 'dynamic' as const,
+      required: true,
+      description: 'Table columns with values',
+      fields: [
+        {
+          label: 'Column name',
+          key: 'columnName',
+          type: 'string' as const,
+          required: true,
+          variables: false,
+        },
+        {
+          label: 'Value',
+          key: 'value',
+          type: 'string' as const,
+          required: true,
+          variables: true,
+        }
+      ],
+    },
+    {
+      label: 'Run-time parameters',
+      key: 'params',
+      type: 'dynamic' as const,
+      required: false,
+      description: 'Change a run-time configuration parameter with command SET',
+      fields: [
+        {
+          label: 'Parameter ',
+          key: 'configParam',
+          type: 'string' as const,
+          required: true,
+          variables: false,
+        },
+        {
+          label: 'Value',
+          key: 'value',
+          type: 'string' as const,
+          required: true,
+          variables: true,
+        }
+      ],
+    }
+  ],
+
+  async run($) {
+    const pgClient = await setConfig($)
+
+    const params : any = $.step.parameters.params
+    if (params[0].configParam != '') 
+        await setParams($, pgClient)
+    
+    const fields : any = $.step.parameters.fields
+    let data : IJSONObject = {}
+    fields.forEach( (ele: any) => { data[ele.columnName] = ele.value } )
+
+    const response = await pgClient(`${$.step.parameters.schema}.${$.step.parameters.table}`)
+                    .returning('*')
+                    .insert(data) as IJSONObject
+
+    $.setActionItem({ raw: response[0] as IJSONObject });    
+  },
+});
diff --git a/packages/backend/src/apps/postgres/actions/sql-query/index.ts b/packages/backend/src/apps/postgres/actions/sql-query/index.ts
new file mode 100644
index 00000000..6821ee0e
--- /dev/null
+++ b/packages/backend/src/apps/postgres/actions/sql-query/index.ts
@@ -0,0 +1,60 @@
+import { IJSONObject } from '@automatisch/types';
+import defineAction from '../../../../helpers/define-action';
+import setConfig from '../../common/postgres-configuration';
+import setParams from '../../common/set-run-time-parameters';
+
+export default defineAction({
+  name: 'SQL query',
+  key: 'SQLQuery',
+  description: 'Cteate new item in a table in specific schema in postgreSQL.',
+  arguments: [
+    {
+      label: 'SQL statement',
+      key: 'queryStatement',
+      type: 'string' as const,
+      value: 'public',
+      required: true,
+      description: 'Execute SQL query sttement directly.',
+      variables: true,
+    },
+    {
+      label: 'Run-time parameters',
+      key: 'params',
+      type: 'dynamic' as const,
+      required: false,
+      description: 'Change a run-time configuration parameter with command SET',
+      fields: [
+        {
+          label: 'Parameter ',
+          key: 'configParam',
+          type: 'string' as const,
+          required: true,
+          variables: false,
+        },
+        {
+          label: 'Value',
+          key: 'value',
+          type: 'string' as const,
+          required: true,
+          variables: true,
+        }
+      ],
+    }
+  ],
+
+  async run($) {
+    const pgClient = await setConfig($)
+
+    const params : any = $.step.parameters.params
+    if (params[0].configParam != '') 
+        await setParams($, pgClient)
+    
+
+    const queryStatemnt = $.step.parameters.queryStatement
+    const response = await pgClient.raw(queryStatemnt);
+    
+    const res = { msg: `SQL query: " ${$.step.parameters.queryStatement} " has been executed successfully`}
+  
+    $.setActionItem({ raw: res as IJSONObject });    
+  },
+});
diff --git a/packages/backend/src/apps/postgres/actions/update/index.ts b/packages/backend/src/apps/postgres/actions/update/index.ts
new file mode 100644
index 00000000..6aab1051
--- /dev/null
+++ b/packages/backend/src/apps/postgres/actions/update/index.ts
@@ -0,0 +1,112 @@
+import { IJSONObject, IJSONArray } from '@automatisch/types';
+import defineAction from '../../../../helpers/define-action';
+import setConfig from '../../common/postgres-configuration';
+import setParams from '../../common/set-run-time-parameters';
+
+export default defineAction({
+  name: 'Update',
+  key: 'update',
+  description: 'Cteate new item in a table in specific schema in postgreSQL.',
+  arguments: [
+    {
+      label: 'Schema name',
+      key: 'schema',
+      type: 'string' as const,
+      value: 'public',
+      required: true,
+      description: 'The name of the schema.',
+      variables: false,
+    },
+    {
+      label: 'Table name',
+      key: 'table',
+      type: 'string' as const,
+      required: true,
+      description: 'The name of the table.',
+      variables: false,
+    },
+    {
+      label: 'Where statement',
+      key: 'whereStatement',
+      type: 'string' as const,
+      required: true,
+      description: 'The condition column and relational operator and condition value - For example: id,=,1',
+      variables: true,
+    },
+    {
+      label: 'Fields',
+      key: 'fields',
+      type: 'dynamic' as const,
+      required: true,
+      description: 'Table columns with values',
+      fields: [
+        {
+          label: 'Column name',
+          key: 'columnName',
+          type: 'string' as const,
+          required: true,
+          variables: false,
+        },
+        {
+          label: 'Value',
+          key: 'value',
+          type: 'string' as const,
+          required: true,
+          variables: true,
+        }
+      ],
+    },
+    {
+      label: 'Run-time parameters',
+      key: 'params',
+      type: 'dynamic' as const,
+      required: false,
+      description: 'Change a run-time configuration parameter with command SET',
+      fields: [
+        {
+          label: 'Parameter ',
+          key: 'configParam',
+          type: 'string' as const,
+          required: true,
+          variables: false,
+        },
+        {
+          label: 'Value',
+          key: 'value',
+          type: 'string' as const,
+          required: true,
+          variables: true,
+        }
+      ],
+    }
+  ],
+
+  async run($) {
+    const pgClient = await setConfig($)
+
+    const params : any = $.step.parameters.params
+    if (params[0].configParam != '') 
+        await setParams($, pgClient)
+
+    const whereStatemennt = $.step.parameters.whereStatement as string
+    const whereParts = whereStatemennt.split(",")
+
+    const conditionColumn = whereParts[0]
+    const RelationalOperator = whereParts[1]
+    const conditionValue = whereParts[2]
+
+    const fields : any = $.step.parameters.fields
+    let data : IJSONObject = {}
+    fields.forEach( (ele: any) => { data[ele.columnName] = ele.value } )
+
+    const response = await pgClient(`${$.step.parameters.schema}.${$.step.parameters.table}`)
+                    .returning('*')
+                    .where(conditionColumn, RelationalOperator, conditionValue)
+                    .update(data) as IJSONArray
+
+    let updatedData : IJSONObject = {}
+    response.forEach( (ele: IJSONObject, i : number) => { updatedData[`record${i}`] = ele } )
+
+    $.setActionItem({ raw: updatedData as IJSONObject });    
+  },
+});
diff --git a/packages/backend/src/apps/postgres/auth/index.ts b/packages/backend/src/apps/postgres/auth/index.ts
new file mode 100644
index 00000000..f61f1a46
--- /dev/null
+++ b/packages/backend/src/apps/postgres/auth/index.ts
@@ -0,0 +1,85 @@
+import verifyCredentials from './verify-credentials';
+import isStillVerified from './is-still-verified';
+
+export default {
+    fields: [
+      {
+        key: 'version',
+        label: 'Postgres Version',
+        type: 'string' as const,
+        required: true,
+        readOnly: false,
+        value: null,
+        placeholder: null,
+        description:
+          'The version of postgres database that user want to connect with.',
+        clickToCopy: false,
+      },
+      {
+        key: 'host',
+        label: 'Host',
+        type: 'string' as const,
+        required: true,
+        readOnly: false,
+        value: null,
+        placeholder: null,
+        description:
+          'The host of postgres database.',
+        clickToCopy: false,
+      },
+      {
+        key: 'port',
+        label: 'Port',
+        type: 'string' as const,
+        required: true,
+        readOnly: false,
+        value: null,
+        placeholder: null,
+        description:
+          'The port of postgres database.',
+        clickToCopy: false,
+      },
+      {
+        key: 'database',
+        label: 'Database Name',
+        type: 'string' as const,
+        required: true,
+        readOnly: false,
+        value: null,
+        placeholder: null,
+        description:
+          'The name of postgres database.',
+        clickToCopy: false,
+      },
+      {
+        key: 'user',
+        label: 'Database User Name',
+        type: 'string' as const,
+        required: true,
+        readOnly: false,
+        value: null,
+        placeholder: null,
+        description:
+          'The user who has access on postgres database.',
+        clickToCopy: false,
+      },
+      {
+        key: 'password',
+        label: 'Password',
+        type: 'string' as const,
+        required: true,
+        readOnly: false,
+        value: null,
+        placeholder: null,
+        description:
+          'The password of the user.',
+        clickToCopy: false,
+      },
+
+    ],
+
+    verifyCredentials,
+    isStillVerified    
+  };
+
+  
diff --git a/packages/backend/src/apps/postgres/auth/is-still-verified.ts b/packages/backend/src/apps/postgres/auth/is-still-verified.ts
new file mode 100644
index 00000000..40bb3c45
--- /dev/null
+++ b/packages/backend/src/apps/postgres/auth/is-still-verified.ts
@@ -0,0 +1,22 @@
+// import { IGlobalVariable } from '@automatisch/types';
+// import verifyCredentials from './verify-credentials';
+// import { Knex } from 'knex';
+
+// const isStillVerified = async ($: IGlobalVariable) => {
+
+//     await $.auth.data.pgClient.raw('SELECT 1')
+// //   await verifyCredentials($);
+//   return true;
+// };
+
+// export default isStillVerified;
+
+import { IGlobalVariable } from '@automatisch/types';
+import verifyCredentials from './verify-credentials';
+
+const isStillVerified = async ($: IGlobalVariable) => {
+  await verifyCredentials($);
+  return true;
+};
+
+export default isStillVerified;
diff --git a/packages/backend/src/apps/postgres/auth/verify-credentials.ts b/packages/backend/src/apps/postgres/auth/verify-credentials.ts
new file mode 100644
index 00000000..d4233a3b
--- /dev/null
+++ b/packages/backend/src/apps/postgres/auth/verify-credentials.ts
@@ -0,0 +1,57 @@
+import { IGlobalVariable } from '@automatisch/types';
+import logger from '../../../helpers/logger';
+import setConfig from '../common/postgres-configuration';
+
+
+const verifyCredentials = async ($: IGlobalVariable) => {
+
+    const pgClient = await setConfig($)
+    const checkConnection = await pgClient.raw('SELECT 1')
+    logger.debug(checkConnection)
+
+    await $.auth.set({
+        screenName: `${$.auth.data.database} DB`,
+        client: 'pg',
+        version: $.auth.data.version,
+        host : $.auth.data.host,
+        port : $.auth.data.port,
+        user : $.auth.data.user,
+        password : $.auth.data.password,
+        database : $.auth.data.database
+    });
+};
+
+export default verifyCredentials;
+
+
+/*
+
+mutation Login($input: LoginInput) {  login(input: $input) {    token    user {      id      email      __typename    }    __typename  }}
+
+
+mutation CreateConnection($input: CreateConnectionInput) {  createConnection(input: $input) {    id    key    verified    formattedData {      screenName      __typename    }    __typename  }}
+
+{
+    "input":
+    {
+        "key": "postgres",
+        "formattedData": {
+            "version":"15",
+            "host":"127.0.0.1",
+            "port":"6500",
+            "database":"bbs",
+            "user":"test",
+            "password":"@Test123"        
+        }
+    }
+}
+
+mutation VerifyConnection($input: VerifyConnectionInput) {  verifyConnection(input: $input) {    id    key    verified    formattedData {      screenName      __typename    }    createdAt    app {      key      __typename    }    __typename  }}
+
+
+{
+    "input":
+{"id": "18309778-ef78-41ae-be1b-ff51781134c0"}
+}
+
+*/
\ No newline at end of file
diff --git a/packages/backend/src/apps/postgres/common/postgres-configuration.ts b/packages/backend/src/apps/postgres/common/postgres-configuration.ts
new file mode 100644
index 00000000..28c34eb8
--- /dev/null
+++ b/packages/backend/src/apps/postgres/common/postgres-configuration.ts
@@ -0,0 +1,22 @@
+import { IGlobalVariable } from '@automatisch/types';
+import knex, { Knex } from 'knex'
+
+
+const setConfig = async ($: IGlobalVariable) : Promise<Knex<any, unknown[]>> => {
+  const pgClient = knex({
+    client: 'pg',
+    version: $.auth.data.version as string,
+    connection: {
+        host : $.auth.data.host as string,
+        port : $.auth.data.port as number,
+        user : $.auth.data.user as string,
+        password : $.auth.data.password as string,
+        database : $.auth.data.database as string
+      }
+    })
+
+  return pgClient;
+
+};
+
+export default setConfig;
diff --git a/packages/backend/src/apps/postgres/common/set-run-time-parameters.ts b/packages/backend/src/apps/postgres/common/set-run-time-parameters.ts
new file mode 100644
index 00000000..dd5738c1
--- /dev/null
+++ b/packages/backend/src/apps/postgres/common/set-run-time-parameters.ts
@@ -0,0 +1,17 @@
+import { IGlobalVariable, IJSONObject } from '@automatisch/types';
+import { Knex } from 'knex'
+import logger from '../../../helpers/logger';
+
+const setParams = async ($: IGlobalVariable, client: Knex<any, unknown[]>) : Promise<Knex.Raw<any>> => {
+
+  const params : any = $.step.parameters.params
+  let paramsObj : IJSONObject = {}
+  params.forEach( (ele: any) => { paramsObj[ele.configParam] = ele.value } )
+
+  for (const key in paramsObj) {
+    const res = await client.raw(`SET ${key} = '${paramsObj[key]}'`);
+  }
+
+};
+
+export default setParams;
diff --git a/packages/backend/src/apps/postgres/index.d.ts b/packages/backend/src/apps/postgres/index.d.ts
new file mode 100644
index 00000000..e69de29b
diff --git a/packages/backend/src/apps/postgres/index.ts b/packages/backend/src/apps/postgres/index.ts
new file mode 100644
index 00000000..ec0c29fc
--- /dev/null
+++ b/packages/backend/src/apps/postgres/index.ts
@@ -0,0 +1,17 @@
+import defineApp from '../../helpers/define-app';
+import auth from './auth';
+import actions from './actions';
+
+export default defineApp({
+  name: 'PostgreSQL DataBase',
+  key: 'postgres',
+  iconUrl: '{BASE_URL}/apps/thecatapi/assets/favicon.svg',
+  authDocUrl: 'https://automatisch.io/docs/apps/thecatapi/connection',
+  supportsConnections: true,
+  baseUrl: '', // https://thecatapi.com
+  apiBaseUrl: '', // https://api.thecatapi.com
+  primaryColor: '000000',
+
+  auth,
+  actions
+});