HTTP 429 Too Many Requests (RFC 6585) indicates the client has sent too many requests in a given time period (rate limiting). The server SHOULD include a Retry-After header telling the client when it can try again. This is the standard rate-limiting response — APIs use it to protect against abuse, enforce fair usage quotas, and prevent service degradation from excessive traffic.
Response includes the status code, standard headers (including Content-Type), and a small diagnostic JSON body describing the request and returned status.
Simulator URL (copy in the app after load — not a normal link):
https://httpstatus.com/api/status/429
Example request:
curl -i "https://httpstatus.com/api/status/429"