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

# Health check

> Returns 200 OK when the service is running. No authentication required. Use this to verify connectivity or monitor uptime.



## OpenAPI

````yaml /openapi.json get /public/health
openapi: 3.0.3
info:
  title: Callin Public API
  version: 1.0.0
  description: >-
    The Callin public API lets you programmatically build and manage AI voice
    agents, control their knowledge bases, and retrieve call logs and
    transcripts. All endpoints are versioned under /public/v1.
servers:
  - url: https://api.callin.io/api
    description: API Endpoint
security: []
tags:
  - name: Health
    description: Service availability check. No authentication required.
  - name: Identity
    description: Verify which account is associated with the current API key.
  - name: Agents
    description: Create, retrieve, and update AI voice agents.
  - name: Conversations
    description: List and inspect call logs, transcripts, and conversation details.
  - name: Knowledge Base
    description: Manage documents and groups that agents use during calls.
paths:
  /public/health:
    get:
      tags:
        - Health
      summary: Health check
      description: >-
        Returns 200 OK when the service is running. No authentication required.
        Use this to verify connectivity or monitor uptime.
      responses:
        '200':
          description: Service is up and healthy.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SuccessHealthResponse'
components:
  schemas:
    SuccessHealthResponse:
      type: object
      properties:
        success:
          type: boolean
          example: true
        data:
          type: object
          properties:
            scope:
              type: string
              example: public
      description: Public health check payload (`success` + small `data` object).

````