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Vtiger CRM API Limits

Bindu Rekha Babu
25 Jan, 2022 - Updated 1 year ago
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This article lists the API limits enforced to ensure every customer gets a stable environment and shared resources are well protected.

To prevent abuse of the API, the number of requests are limited on a per-instance basis. We are setting daily, hourly, and minute limits based on the plan you have subscribed to.
The daily limits have a rolling expiration of 24 hours. If you exceed the limits, the API will send back a response with HTTP Status Code 429.

Note: These limits will come into effect from 1st August 2019.

API Limits as per Editions

The plan-specific per day, hour, and minute level request quotas are displayed below:
Editions Day Limits Hour Limit Minute Limit Max Limit
Free 3,000 + 100 per day per user 100 20 4,000
Starter & Exclusive 3,000 + 200 per day per user 1,000 30 27,000
Sales/HelpDesk Professional 6,000 + 400 per day per user 2,000 45 54,000
All in One Professional 6,000 + 600 per day per user 2,500 60 78,000
Enterprise 6,000 + 800 per day per user 3,000 75 1,02,000
Enterprise Plus 6,000 + 1,000 per day per user 4,000 90 1,26,000

Requests arriving via REST API/Webservices are considered. Mass Retrieve API that retrieves up to 200 records is considered as one request.
All update, create and delete requests are single record requests.


Rate Limits

You can make as many API requests, but once you exceed the limit, calls will return HTTP status 429.

How do I see my current usage?
Your current rate limit usage is returned in the response headers from each request you make. Consider this example. If the overall API limits are as below:
  • HTTP/1.1 200 OK
  • X-FloodControl-MinuteLimit: 60
  • X-FloodControl-Remaining: 51
  • X-FloodControl-Reset:15349121212
  • X-RateLimit-DailyLimit: 1200
  • X-RateLimit-Remaining: 417
Then each of these parameters is defined as below:
  • X-FloodControl-MinuteLimit - The number of requests you are allowed per minute.
  • X-FloodControl-Remaining – How many requests you can make before hitting the limit.
  • X-FloodControl-Reset – The next time (Unix timestamp), the minute limit will be updated.
  • X-RateLimit-DailyLimit – The number of requests you are allowed per day.
  • X-RateLimit-Remaining – Remaining number of requests allowed for the day.
  • X-RateLimit-Reset– The next time (Unix timestamp), the limit will be updated.
The following media do not use REST API/Webservices and are ignored in regard to the number of API calls:
  • Gmail Add-on
  • Mobile
  • Extensions
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