# Rate Limiting A HTTP Response to an HTTP Request API Endpoint that is under a rate limiting policy **MUST** include the following HTTP headers: - `Rate-Limit-Limit`: The rate limit ceiling for that given endpoint - `Rate-Limit-Remaining`: The number of requests left An API **MUST** respond with the **429 Too Many Requests** HTTP Status code when a user agent exceeded the number for available calls. In addition, it **SHOULD** include the [`Retry-After`](https://tools.ietf.org/html/rfc7231#section-7.1.3) in the response. The `Retry-After` **MUST** represent the remaining time before the rate limit resets. #### Example ``` HTTP/1.1 429 Too Many Requests Content-Type: application/problem+json Content-Language: en Rate-Limit-Limit: 1000 Rate-Limit-Remaining: 0 Retry-After: 3600 { "type": "https://adidas-group.com/problems/rate_limit_exceeded", "title": "Too Many Requests", "detail": "The allowed rate limit has been exceeded, please try again in 3600 seconds", "status": 429 } ```