Home / Encyclopedia / HTTP Status Codes / 4xx Client Error Responses / 429 Too Many Requests

429 Too Many Requests

The HTTP 429 Too Many Requests status code indicates that a client has sent too many requests within a given time period.

Published 16 Jul 2026 · HTTP Status Code

What is HTTP 429 Too Many Requests?

The 429 Too Many Requests response indicates that rate limiting has been triggered.

HTTP/1.1 429 Too Many Requests

429 responses are important when designing scalable APIs and protecting services from abuse.

429 Too Many Requests means the client must slow down requests.

Explore related concepts and continue through the encyclopedia.

The HTTP 431 Request Header Fields Too Large status code indicates that request headers exceed the server limits.

The HTTP 451 Unavailable For Legal Reasons status code indicates that access to a resource has been denied due to legal...

HTTP 4xx Client Error Responses indicate that a request could not be completed because of a problem with the client requ...