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Usage and Rate Limits

Rate limit refers to the number of API calls one can make in Central per day.

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Note

The Rate Limit resets at GMT midnight.

The table below illustrates important values relevant to usage and rate limits of the API calls. These values can be found in the HTTP Response Headers.

Header Parameter

Description

X-RateLimit-Limit-day

API rate limit for a day

E.g. if the value is 1000, then one can make 1000 API calls per day

X-RateLimit-Remaining-day

Remaining number of API calls that can be made during a day

E.g. a value of 990 means one can make 990 more API calls before hitting the rate limit

Date

Date & Time of API call in GMT

E.g. Fri, 23 Apr 2021 21:21:54 GMT

X-Request-Start

Date & Time of API call in Unix time/Epoch Time

E.g. t=1619212914.071.

X-RateLimit-Limit-second

API rate limit per second

E.g. 7 API calls can be made per second

X-RateLimit-Remaining-second

Remaining number of API calls that can be made in one second as per the rate limit for one second

This is an example of HTTP Response Headers for an API call where you can find usage and rate limit values.

{
  "access-control-allow-origin": "*",
  "cache-control": "no-cache, no-store, must-revalidate, private",
  "connection": "keep-alive",
  "content-encoding": "gzip",
  "content-type": "application/json",
  "date": "Fri, 21 Jan 2022 18:50:27 GMT",
  "pragma": "no-cache",
  "transfer-encoding": "chunked",
  "vary": "Accept-Encoding",
  "via": "kong/0.14.1",
  "x-frame-options": "SAMEORIGIN",
  "x-kong-proxy-latency": "3",
  "x-kong-upstream-latency": "146",
  "x-ratelimit-limit-day": "1000",
  "x-ratelimit-limit-second": "7",
  "x-ratelimit-remaining-day": "998",
  "x-ratelimit-remaining-second": "6",
  "x-request-start": "t=1642791027.187",
  "x-xss-protection": "1; mode=block"
}

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