---
title: "Health check"
method: GET
path: "/ping"
tags: ["Utility"]
---

# Health check

`GET /ping`

## Request

- Base URL: `https://app.gc.ai/api/external/v1`
- URL: `https://app.gc.ai/api/external/v1/ping`
- Auth: API key in header `Authorization`
- TypeScript: <https://skmtc.dev/gc-ai/apis/gc-ai-external-api/docs/ping/get.ts> (a function with typed inputs; its response is checked against the schema)

Returns a simple health check response. Useful for verifying API key validity and connectivity.

## Response `200`

API is reachable and key is valid

- PingResponse
  - `status` 'pong', required: Always `pong`
  - `timestamp` string, required: ISO 8601 server timestamp

## Other responses

- `401`: Missing or malformed API key
- `403`: Invalid API key
- `429`: Rate limit exceeded. See [Rate Limits](https://docs.gc.ai/api-reference/concepts/rate-limits) for the tiers, limits, and how to back off.
- `500`: Internal server error
- `503`: Service temporarily unavailable

---

[API](https://skmtc.dev/gc-ai/apis/gc-ai-external-api.md) - [All operations](https://skmtc.dev/gc-ai/apis/gc-ai-external-api/llms.txt) - [OpenAPI document](https://skmtc.dev/gc-ai/apis/gc-ai-external-api/revisions/2bbdfddf7107?raw)