> ## Documentation Index
> Fetch the complete documentation index at: https://docs.pathors.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Check webhook

> Check whether a webhook subscription already exists for a given URL.



## OpenAPI

````yaml https://api.pathors.com/openapi.json post /v1/projects/{projectId}/webhooks/check
openapi: 3.1.0
info:
  title: Pathors API
  description: >-
    Public developer API for the Pathors platform. Authenticate with a developer
    key (`Authorization: Bearer dk_...`) created from the dashboard. See
    [docs.pathors.com](https://docs.pathors.com) for guides.
  version: 1.0.0
  contact:
    name: Pathors Support
    url: https://app.pathors.com/support
servers:
  - url: https://api.pathors.com
    description: Production
  - url: http://localhost:8080
    description: Local development
security:
  - developerKey: []
tags:
  - name: Projects
    description: CRUD for projects owned by the authenticated developer
  - name: Agent Config
    description: Read and update a project's agent configuration and versions
  - name: Pathway
    description: Manage a project's pathway graph — nodes and decision edges
  - name: Chat
    description: OpenAI-compatible chat completions for a project agent
  - name: Sessions
    description: Create, search, terminate, and inspect agent sessions
  - name: Session History
    description: Browse and inspect persisted session history
  - name: Tools
    description: Manage a project's tools and inspect available tool types
  - name: Knowledgebases
    description: Manage knowledgebases and query them for relevant chunks
  - name: Datasets
    description: Upload and manage source files embedded into a knowledgebase
  - name: Test Cases
    description: CRUD for agent test cases
  - name: Test Suites
    description: Group test cases, run them, and read results
  - name: Webhooks
    description: Manage webhook subscriptions for project events
  - name: Calls
    description: Place outbound voice calls from a project agent
paths:
  /v1/projects/{projectId}/webhooks/check:
    post:
      tags:
        - Webhooks
      summary: Check webhook
      description: Check whether a webhook subscription already exists for a given URL.
      operationId: postV1ProjectsByProjectIdWebhooksCheck
      parameters:
        - name: projectId
          in: path
          required: true
          schema:
            type: string
          description: The ID of your project
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $schema: https://json-schema.org/draft/2020-12/schema
              type: object
              properties:
                url:
                  type: string
                  format: uri
              required:
                - url
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
                properties:
                  exists:
                    type: boolean
                  id:
                    type: string
                required:
                  - exists
        '400':
          description: Error response
          content:
            application/json:
              schema:
                anyOf:
                  - type: object
                    properties:
                      error:
                        type: string
                    required:
                      - error
                  - type: object
                    properties:
                      error:
                        type: object
                        properties:
                          message:
                            type: string
                          code:
                            type: string
                          details:
                            type: object
                            propertyNames:
                              type: string
                            additionalProperties: {}
                        required:
                          - message
                    required:
                      - error
        '401':
          description: Error response
          content:
            application/json:
              schema:
                anyOf:
                  - type: object
                    properties:
                      error:
                        type: string
                    required:
                      - error
                  - type: object
                    properties:
                      error:
                        type: object
                        properties:
                          message:
                            type: string
                          code:
                            type: string
                          details:
                            type: object
                            propertyNames:
                              type: string
                            additionalProperties: {}
                        required:
                          - message
                    required:
                      - error
components:
  securitySchemes:
    developerKey:
      type: http
      scheme: bearer
      bearerFormat: Developer key (dk_...)
      description: Developer key created from the dashboard (Settings → Developer Keys)

````