---
title: "Health Check Ping"
method: GET
path: "/tax/ping"
---

# Health Check Ping

`GET /tax/ping`

Authenticated health check endpoint that returns status, environment, timestamp, and API version

## Headers

- `X-API-Version` '2025-05-12' | '2024-09-01'

## Response `200`

Successful health check response

- PingResponse — Health check response containing status, environment, timestamp, and API version information
  - `status` 'ok', required — Always returns 'ok' for successful health checks
  - `env` 'test' | 'prod', required — Environment indicator based on API key type: 'test' for testmode keys, 'prod' for production keys
  - `timestamp` string, date-time, required — Current ISO 8601 timestamp when the request was processed
  - `api_version` '2024-09-01' | '2025-05-12', required — API version from X-API-Version header, or falls back to 2024-09-01

## Other responses

- `400` — Bearer token not provided
- `401` — Authentication errors
- `429` — Rate limit exceeded
- `500` — Internal server error

---

[API](https://skmtc.net/numeral-com/apis/numeral-api.md) · [All operations](https://skmtc.net/numeral-com/apis/numeral-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/numeral-com/numeral-api/versions/f0af51c3f9b9/schema)