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

# Readiness Check

> Returns 200 if node is connected and Redis is reachable, 503 otherwise.



## OpenAPI

````yaml GET /readyz
openapi: 3.1.0
info:
  title: PolyNode API
  description: >-
    Real-time Polymarket data API with decoded mempool settlements, OHLCV
    candles, and full Polygon JSON-RPC proxy.
  contact:
    name: PolyNode
    url: https://polynode.dev
  license:
    name: ''
  version: 2.0.0
servers:
  - url: https://api.polynode.dev
    description: Production
security:
  - api_key: []
paths:
  /readyz:
    get:
      tags:
        - System
      summary: Readiness check
      description: Returns 200 if node is connected and Redis is reachable, 503 otherwise.
      operationId: readyz
      responses:
        '200':
          description: System ready
        '503':
          description: System not ready
components:
  securitySchemes:
    api_key:
      type: apiKey
      in: header
      name: x-api-key

````