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OpenAPI Specification

openapi: 3.2.0
info:
  title: Cronitor Telemetry API
  version: '2025-11-28'
  description: 'Monitor cron jobs, heartbeats, websites, and APIs, and manage alerts, issues, status pages, and Real User Monitoring sites. Reference: https://cronitor.io/docs/api'
servers:
- url: https://cronitor.io
security:
- apiKey: []
tags:
- name: Telemetry
  description: Send events from jobs and heartbeats. Served from cronitor.link.
  externalDocs:
    url: https://cronitor.io/docs/telemetry-api
paths:
  /p/{apiKey}/{monitorKey}:
    get:
      servers:
      - url: https://cronitor.link
      - url: https://eu.cronitor.link
        description: Received in Germany; stored with all other events.
      tags:
      - Telemetry
      summary: Send a telemetry event
      description: 'Records a job or heartbeat event. Every request returns 200, even with an invalid key: authentication happens after ingestion. https://cronitor.io/docs/telemetry-api'
      security: []
      parameters:
      - name: apiKey
        in: path
        required: true
        schema:
          type: string
        description: An API key with the monitor:telemetry scope. Telemetry keys are not secret.
      - name: monitorKey
        in: path
        required: true
        schema:
          type: string
        description: The monitor key. An unknown key creates a monitor.
      - name: state
        in: query
        schema:
          type: string
          enum:
          - run
          - complete
          - fail
          - tick
          - ok
        description: Omit to record a tick. ok resets the monitor to passing.
      - name: message
        in: query
        schema:
          type: string
          maxLength: 2000
      - name: series
        in: query
        schema:
          type: string
        description: Matches a run event with its complete or fail event.
      - name: metric
        in: query
        style: form
        explode: true
        schema:
          type: array
          items:
            type: string
            example: count:100
        description: A metric in name:value form. Repeat for multiple metrics.
      - name: env
        in: query
        schema:
          type: string
      - name: host
        in: query
        schema:
          type: string
      - name: status_code
        in: query
        schema:
          type: integer
        description: The exit code returned by the job.
      responses:
        '200':
          description: Event accepted.
      operationId: telemetry_send
    post:
      servers:
      - url: https://cronitor.link
      - url: https://eu.cronitor.link
        description: Received in Germany; stored with all other events.
      tags:
      - Telemetry
      summary: Send a telemetry event
      description: 'Records a job or heartbeat event. Every request returns 200, even with an invalid key: authentication happens after ingestion. https://cronitor.io/docs/telemetry-api'
      security: []
      parameters:
      - name: apiKey
        in: path
        required: true
        schema:
          type: string
        description: An API key with the monitor:telemetry scope. Telemetry keys are not secret.
      - name: monitorKey
        in: path
        required: true
        schema:
          type: string
        description: The monitor key. An unknown key creates a monitor.
      - name: state
        in: query
        schema:
          type: string
          enum:
          - run
          - complete
          - fail
          - tick
          - ok
        description: Omit to record a tick. ok resets the monitor to passing.
      - name: message
        in: query
        schema:
          type: string
          maxLength: 2000
      - name: series
        in: query
        schema:
          type: string
        description: Matches a run event with its complete or fail event.
      - name: metric
        in: query
        style: form
        explode: true
        schema:
          type: array
          items:
            type: string
            example: count:100
        description: A metric in name:value form. Repeat for multiple metrics.
      - name: env
        in: query
        schema:
          type: string
      - name: host
        in: query
        schema:
          type: string
      - name: status_code
        in: query
        schema:
          type: integer
        description: The exit code returned by the job.
      responses:
        '200':
          description: Event accepted.
      operationId: telemetry_send_post
components:
  securitySchemes:
    apiKey:
      type: http
      scheme: basic
      description: 'Send an API key as the HTTP Basic username with an empty password, for example `curl -u API_KEY: https://cronitor.io/api/monitors`. Keys carry scopes: https://cronitor.io/docs/api-keys'
x-provenance:
  method: harvested
  publisher: Cronitor
  source: https://cronitor.io/api/openapi.json
  note: split by refine-openapis from the provider's own published document, verified by fetch (openapi/_original/*.fetch.json);
    stamped by stamp-openapi-provenance.py (roadmap#793)