> ## Documentation Index > Fetch the complete documentation index at: https://docs.airscale.io/llms.txt > Use this file to discover all available pages before exploring further. # Remove a source from a post engagement monitor > Stop following one LinkedIn company page or profile. Rate limit: 120 requests per fixed minute per API key, shared by all post engagement monitor endpoints. > [!NOTE] > > Post engagement monitoring requires a **V2 workspace API key**. Legacy V1 API keys are not supported by these endpoints. Monitors and their credits belong to the V2 workspace associated with the key. Remove one source by `source_id`. The response returns the source with `status: "removed"`. Removing a source restarts coverage for the monitor; delivered engagers and the results table are kept. A monitor needs at least one source: removing the last one returns `422 source_required`. A source the monitor does not follow returns `404 source_not_found`. ## Next step Use [Add sources](https://docs.airscale.io/api-reference/post-engagement-monitors/sources/add.md) to follow a replacement. ## OpenAPI ````yaml openapi.json DELETE /v1/post-engagement-monitors/{monitor_id}/sources/{source_id} openapi: 3.1.0 info: title: Airscale Public API version: '2026-09-11' description: >- Search, enrich, resolve public business data, and monitor job changes with Airscale. x-airscale-source-repository: ViceScale/airscale-code x-airscale-source-sha: 1de19e1b70a052a4b8d9c2075021a7e5e7a94d51 servers: - url: https://api.airscale.io description: Production security: - bearerAuth: [] tags: - name: Search and discovery description: Search people, companies, and the web. - name: Contact data description: Find professional and personal contact data. - name: Profiles and reverse lookup description: Extract profiles or resolve a person from known contact data. - name: Post engagement description: Retrieve and enrich people who liked or commented on LinkedIn posts. - name: LinkedIn content description: >- Search LinkedIn posts, read profile and company feeds, and retrieve profile comments and comment reactions. - name: Job change monitoring description: Track LinkedIn profiles and receive job-change events. - name: New hire monitoring description: Watch companies or the market for people who start a matching role. - name: Post engagement monitoring description: >- Follow LinkedIn company pages and profiles and receive the people who engage with their posts. - name: Account description: Inspect workspace account state. - name: Miscellaneous description: >- Find website technologies and check WhatsApp availability, Meta ads, and email deliverability. paths: /v1/post-engagement-monitors/{monitor_id}/sources/{source_id}: delete: tags: - Post engagement monitoring summary: Remove a source from a monitor description: >- Stops following one source. Removing a source restarts coverage for the monitor; delivered engagers and the results table are kept. A monitor keeps at least one source. Requires a V2 workspace API key. Legacy V1 API keys are not supported. Monitors and their credits belong to the V2 workspace. operationId: removePostEngagementMonitorSource parameters: - name: monitor_id in: path required: true schema: type: string format: uuid example: 71111111-1111-4111-8111-111111111111 - name: source_id in: path required: true schema: type: string format: uuid example: 72222222-2222-4222-8222-222222222222 responses: '200': description: The removed source. content: application/json: schema: type: object additionalProperties: false required: - source properties: source: $ref: '#/components/schemas/PostEngagementSource' examples: success: summary: Successful response value: source: id: 72222223-2222-4222-8222-222222222223 linkedin_url: https://www.linkedin.com/in/example-person kind: profile status: removed last_checked_at: '2026-11-02T09:00:00.000Z' last_error: null '401': $ref: '#/components/responses/MonitorUnauthorized' '404': description: >- monitor_not_found, or source_not_found when the monitor does not follow this source. content: application/json: schema: $ref: '#/components/schemas/MonitorApiError' examples: error: summary: Error response value: error: code: monitor_not_found message: Monitor not found '422': description: 'source_required: the source is the monitor''s last one.' content: application/json: schema: $ref: '#/components/schemas/MonitorApiError' '429': description: >- The API key has exceeded 120 requests in the current minute across post engagement monitor endpoints. Wait for the Retry-After seconds before retrying. content: application/json: schema: $ref: '#/components/schemas/Error' examples: error: summary: Error response value: error: Too Many Requests message: 'Rate limit exceeded: 120 requests per minute' headers: Retry-After: description: Seconds to wait before retrying. schema: type: string example: '60' '503': description: >- service_unavailable: post engagement monitoring is temporarily unavailable. content: application/json: schema: $ref: '#/components/schemas/MonitorApiError' components: schemas: PostEngagementSource: type: object additionalProperties: false required: - id - linkedin_url - kind - status - last_checked_at - last_error properties: id: type: string format: uuid linkedin_url: type: string kind: type: string enum: - company - profile - post description: >- The API accepts company and profile sources only; post appears on single-post sources added in the Airscale app. status: type: string enum: - pending - monitoring - removed description: >- pending until the source's first check, then monitoring. removed appears only in a remove response. last_checked_at: type: - string - 'null' format: date-time last_error: type: - string - 'null' MonitorApiError: type: object additionalProperties: false required: - error properties: error: type: object additionalProperties: false required: - code - message properties: code: type: string message: type: string Error: type: object additionalProperties: true properties: error: type: string message: type: string responses: MonitorUnauthorized: description: >- A missing Bearer token returns {"error":"Unauthorized","message":"Missing or invalid bearer token"}. An unknown API key returns invalid_api_key. content: application/json: schema: oneOf: - $ref: '#/components/schemas/MonitorApiError' - $ref: '#/components/schemas/Error' examples: invalidKey: summary: Unknown API key value: error: code: invalid_api_key message: The API key is not valid securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: API key description: >- Use an Airscale workspace API key. Never expose the key in client-side code. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.