---
title: "Health check endpoint"
method: GET
path: "/health"
tags: ["Health"]
---

# Health check endpoint

`GET /health`

Verifies the service is running and Claude CLI is accessible. No authentication required.

## Response `200`

Service is healthy

- object
  - `status` 'healthy' | 'unhealthy', required
  - `claudeCli` 'available' | 'unavailable', required
  - `timestamp` string, required
  - `error` string
  - `concurrency` object
    - `streaming` object, required
      - `active` integer, required
      - `limit` integer, required
    - `nonStreaming` object, required
      - `active` integer, required
      - `limit` integer, required

## Other responses

- `503` — Service is unhealthy (Claude CLI unavailable)

## Changes

- **2025-12-26** `5a0fb0ffd413` — 2 info
  - added the optional property `concurrency` to the response with the `200` status
  - added the optional property `concurrency` to the response with the `503` status
- **2025-12-24** `62c4085e0ca0` — 2 warning
  - removed the optional property `concurrency` from the response with the `200` status
  - removed the optional property `concurrency` from the response with the `503` status

[Change history](https://skmtc.dev/pattern-zones-co/apis/koine-gateway-api/changes/health/get.md)

---

[API](https://skmtc.dev/pattern-zones-co/apis/koine-gateway-api.md) · [All operations](https://skmtc.dev/pattern-zones-co/apis/koine-gateway-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/pattern-zones-co/koine-gateway-api/revisions/f7074f1efbee/schema)