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

# Verify server-side Signal ingestion

> Writes one identity-free verification event for onboarding and returns the existing event on retry.



## OpenAPI

````yaml https://plainrouter.com/openapi.json post /verification-events
openapi: 3.1.0
info:
  title: PlainRouter Conversion API
  version: 0.5.0
  description: PlainRouter public Signals Conversion API.
servers:
  - url: https://plainrouter.com/api/v1
    description: Production
security:
  - signalTrackerSecret: []
paths:
  /verification-events:
    post:
      tags:
        - Event
      summary: Verify server-side Signal ingestion
      description: >-
        Writes one identity-free verification event for onboarding and returns
        the existing event on retry.
      operationId: verifySignalIngestion
      responses:
        '200':
          description: The idempotent server verification event already exists.
          content:
            application/json:
              schema:
                type: object
                properties:
                  event_id:
                    type: string
                  duplicate:
                    type: boolean
                required:
                  - event_id
                  - duplicate
          headers:
            Location:
              description: Canonical verification-event resource to poll.
              schema:
                type: string
                format: uri
        '202':
          description: Server-side Signal ingestion verified.
          content:
            application/json:
              schema:
                type: object
                properties:
                  event_id:
                    type: string
                  duplicate:
                    type: boolean
                required:
                  - event_id
                  - duplicate
          headers:
            Location:
              description: Canonical verification-event resource to poll.
              schema:
                type: string
                format: uri
        '401':
          description: Invalid or missing Signal tracker secret.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorMessage'
components:
  schemas:
    ErrorMessage:
      type: object
      properties:
        message:
          type: string
      required:
        - message
      title: ErrorMessage
  securitySchemes:
    signalTrackerSecret:
      type: http
      description: >-
        Per-tracker bearer secret. It authenticates only the Signal tracker
        represented by the credential.
      scheme: bearer

````