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Rate Limiting

Overall request limits​

The API is rate-limited to 150 requests every 60 seconds. All requests count towards the total. Every request processed by the API returns rate limiting information in the HTTP headers.

Note: Rate limiting is based on both username and ip address. Therefore a single username is limited to 150 requests every 60 seconds, as is a single IP address.

Statistics request limits​

Statistics requests are rate limited to 30 requests per minute for each IP address and 25 requests per minute for each username.

Note: The IP and username of every statistics request made will count towards these limits.

For example, if you log in with your username on a single computer and make 25 statistics requests, the next one you make will fail. However, you could change to a different username and make 5 more statistics requests, before hitting the IP address limit.

Examples​

Rate Limiting - Example 1​


$ curl -i https://api.example.com/v2/statistics/a/date


    {
        "HTTP/1.1": "200 OK",
        "Date": "Fri, 24 Oct 2014 14:57:32 GMT",
        "Content-Type": "application/json",
        "Transfer-Encoding": "chunked",
        "X-Rate-Limit-Limit": 25,
        "X-Rate-Limit-Remaining": 44,
        "X-Rate-Limit-Reset": 27
    }

When the rate limit is exceeded a 429 Too Many Requests HTTP error will be thrown by any subsequent requests until the rate limit is reset. As with a normal request the rate limiting information will be available in the HTTP headers.

Rate Limiting - Example 2 (Limit Exceeded)​


$ curl -i https://api.example.com/v2/statistics/a/date


{
        "HTTP/1.1": "429 Too Many Requests",
        "Date": "Fri, 24 Oct 2014 15:04:35 GMT",
        "Content-Type": "application/json",
        "Transfer-Encoding": "chunked",
        "X-Rate-Limit-Limit": 25,
        "X-Rate-Limit-Remaining": 0,
        "X-Rate-Limit-Reset": 12
    }