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OpenAPI Specification

openapi: 3.2.0
info:
  title: CircleCI REST API v2 Webhook API
  description: The CircleCI REST API v2 provides programmatic access to CircleCI services for managing pipelines, projects, workflows, jobs, and users. Developers can trigger pipelines, retrieve build status, manage contexts and environment variables, and access usage reports. The API uses token-based authentication via a Circle-Token header and returns JSON responses. It supports operations for project configuration, workflow management, artifact retrieval, and insights into build performance.
  version: '2.0'
  contact:
    name: CircleCI Support
    url: https://support.circleci.com
  termsOfService: https://circleci.com/terms-of-service/
  license:
    name: MIT
    url: https://opensource.org/licenses/MIT
servers:
- url: https://circleci.com/api/v2
  description: CircleCI Production API
security:
- apiToken: []
tags:
- name: Webhook
  description: Endpoints for creating, updating, listing, and deleting outbound webhook subscriptions.
paths:
  /webhook:
    get:
      operationId: listWebhooks
      summary: List webhooks
      description: Returns a list of outbound webhooks for the specified scope.
      tags:
      - Webhook
      parameters:
      - name: scope-id
        in: query
        required: true
        description: The ID of the scope (project ID)
        schema:
          type: string
          format: uuid
      - name: scope-type
        in: query
        required: true
        description: The type of scope
        schema:
          type: string
          enum:
          - project
      responses:
        '200':
          description: Successfully retrieved webhooks
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/WebhookList'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
    post:
      operationId: createWebhook
      summary: Create a webhook
      description: Creates a new outbound webhook for the specified scope.
      tags:
      - Webhook
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateWebhookRequest'
      responses:
        '201':
          description: Webhook created successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/WebhookInfo'
        '400':
          description: Bad request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
  /webhook/{webhook-id}:
    get:
      operationId: getWebhook
      summary: Get a webhook by ID
      description: Returns a webhook by its unique identifier.
      tags:
      - Webhook
      parameters:
      - $ref: '#/components/parameters/WebhookIdParam'
      responses:
        '200':
          description: Successfully retrieved webhook
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/WebhookInfo'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '404':
          description: Webhook not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
    put:
      operationId: updateWebhook
      summary: Update a webhook
      description: Updates an existing webhook with the provided parameters.
      tags:
      - Webhook
      parameters:
      - $ref: '#/components/parameters/WebhookIdParam'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/UpdateWebhookRequest'
      responses:
        '200':
          description: Webhook updated successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/WebhookInfo'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
    delete:
      operationId: deleteWebhook
      summary: Delete a webhook
      description: Deletes a webhook by its unique identifier.
      tags:
      - Webhook
      parameters:
      - $ref: '#/components/parameters/WebhookIdParam'
      responses:
        '200':
          description: Webhook deleted successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MessageResponse'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
components:
  parameters:
    WebhookIdParam:
      name: webhook-id
      in: path
      required: true
      description: The unique identifier of the webhook
      schema:
        type: string
        format: uuid
  schemas:
    UpdateWebhookRequest:
      type: object
      properties:
        name:
          type: string
          description: The name of the webhook
        url:
          type: string
          format: uri
          description: The URL to deliver webhook payloads to
        events:
          type: array
          items:
            type: string
            enum:
            - workflow-completed
            - job-completed
          description: The events to subscribe to
        signing-secret:
          type: string
          description: Secret used to generate HMAC signature
        verify-tls:
          type: boolean
          description: Whether to verify TLS on delivery
    MessageResponse:
      type: object
      properties:
        message:
          type: string
          description: A message describing the result of the operation
    WebhookInfo:
      type: object
      properties:
        id:
          type: string
          format: uuid
          description: The unique identifier of the webhook
        url:
          type: string
          format: uri
          description: The URL the webhook delivers to
        name:
          type: string
          description: The name of the webhook
        events:
          type: array
          items:
            type: string
            enum:
            - workflow-completed
            - job-completed
          description: The events this webhook subscribes to
        scope:
          type: object
          properties:
            id:
              type: string
              format: uuid
              description: The scope ID
            type:
              type: string
              description: The scope type
          description: The scope of the webhook
        signing-secret:
          type: string
          description: The signing secret for verifying webhook payloads
        verify-tls:
          type: boolean
          description: Whether to verify TLS certificates
        created-at:
          type: string
          format: date-time
          description: When the webhook was created
        updated-at:
          type: string
          format: date-time
          description: When the webhook was last updated
    ErrorResponse:
      type: object
      properties:
        message:
          type: string
          description: A human-readable error message
    WebhookList:
      type: object
      properties:
        items:
          type: array
          items:
            $ref: '#/components/schemas/WebhookInfo'
          description: List of webhooks
        next_page_token:
          type: string
          description: Token for retrieving the next page
    CreateWebhookRequest:
      type: object
      required:
      - name
      - url
      - events
      - scope
      - signing-secret
      properties:
        name:
          type: string
          description: The name of the webhook
        url:
          type: string
          format: uri
          description: The URL to deliver webhook payloads to
        events:
          type: array
          items:
            type: string
            enum:
            - workflow-completed
            - job-completed
          description: The events to subscribe to
        scope:
          type: object
          required:
          - id
          - type
          properties:
            id:
              type: string
              format: uuid
              description: The scope ID (project ID)
            type:
              type: string
              enum:
              - project
              description: The scope type
        signing-secret:
          type: string
          description: Secret used to generate HMAC signature
        verify-tls:
          type: boolean
          description: Whether to verify TLS on delivery
  securitySchemes:
    apiToken:
      type: apiKey
      in: header
      name: Circle-Token
      description: Personal API token for authenticating with the CircleCI API. Generate tokens in your CircleCI account settings.
    basicAuth:
      type: http
      scheme: basic
      description: HTTP basic authentication using a personal API token as the username with an empty password.
externalDocs:
  description: CircleCI API v2 Documentation
  url: https://circleci.com/docs/api/v2/