> ## Documentation Index
> Fetch the complete documentation index at: https://docs.55-tech.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Health check

> Liveness probe. Returns {"ok": true}.



## OpenAPI

````yaml /zh/scraping-api/openapi.json get /healthz
openapi: 3.1.0
info:
  title: 55 Tech Scraping API
  description: >-
    Distributed fetch network. Route HTTP, browser, WebSocket, and AMQP requests
    through 80+ geo-distributed agents with health-aware routing and block
    detection.
  version: 2.2.0
  contact:
    name: 55 Tech Support
    email: contact@55-tech.com
servers:
  - url: https://scraping-api.55-tech.com
    description: Production
security:
  - ApiKeyHeader: []
tags:
  - name: Fetch
    description: Proxy HTTP requests through the agent network.
  - name: Browser
    description: Fetch with full JavaScript rendering, cookies, and screenshots.
  - name: Network
    description: Agent registry, network status, and domain health.
  - name: AMQP
    description: AMQP/RabbitMQ consumer relay via SSE.
  - name: Usage
    description: Per-key usage metrics.
  - name: Debug
    description: Debug and diagnostic endpoints.
  - name: System
    description: Health checks and system endpoints.
paths:
  /healthz:
    get:
      tags:
        - System
      summary: Health check
      description: 'Liveness probe. Returns {"ok": true}.'
      operationId: healthz
      responses:
        '200':
          description: Healthy
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HealthzResponse'
      security: []
components:
  schemas:
    HealthzResponse:
      type: object
      properties:
        ok:
          type: boolean
  securitySchemes:
    ApiKeyHeader:
      type: apiKey
      in: header
      name: X-API-Key
      description: API key passed in the X-API-Key header.

````