Pirsch Authentication API

openapi: 3.0.3
info:
  title: Pirsch Access Links Authentication API
  description: RESTful API for sending page views, events, and session data to Pirsch, and for querying statistics including visitors, pages, referrers, UTM parameters, geo-location, device, browser, conversion goals, funnels, and real-time active visitors. Also exposes management endpoints for domains, members, clients, webhooks, email reports, traffic filters, short links, and views.
  version: '1'
  contact:
    name: Pirsch Support
    url: https://pirsch.io
  license:
    name: Proprietary
    url: https://pirsch.io/privacy
servers:
- url: https://api.pirsch.io/api/v1
  description: Pirsch production API
security:
- BearerAuth: []
tags:
- name: Authentication
  description: Obtain access tokens using OAuth2 client credentials
paths:
  /token:
    post:
      operationId: getToken
      summary: Obtain access token
      description: Authenticate with client credentials to obtain a Bearer access token
      security: []
      tags:
      - Authentication
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/TokenRequest'
      responses:
        '200':
          description: Access token returned
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TokenResponse'
        '400':
          description: Invalid credentials
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
components:
  schemas:
    TokenResponse:
      type: object
      properties:
        access_token:
          type: string
          description: Bearer token to use in subsequent requests
        expires_at:
          type: string
          format: date-time
          description: UTC timestamp when the token expires
    ErrorResponse:
      type: object
      properties:
        validation:
          type: object
          additionalProperties:
            type: array
            items:
              type: string
          description: Field-level validation errors
        error:
          type: array
          items:
            type: string
          description: General error messages
        context:
          type: object
          additionalProperties: true
          description: Additional error context
    TokenRequest:
      type: object
      required:
      - client_id
      - client_secret
      properties:
        client_id:
          type: string
          description: OAuth2 client ID
        client_secret:
          type: string
          description: OAuth2 client secret
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: Pass an OAuth2 access token obtained from POST /token, or a static access key, as a Bearer token in the Authorization header.