ThroughLine sets a daily API call limit on each customer that has access to the API. This is to ensure our infrastructure is not overloaded.

The API call quota is measured on a 24-hour rolling window. Every time you make an API call, we check the combined number of calls that all of your applications have made within the last 24 hours: if it's lower than your quota, we allow the request; if it's above your quota, we reject the request.

The rolling window is advanced hourly. Therefore, if you make an API call at 5:45pm, we will count all API calls from 6pm on the previous day up until now. If you reach your quota at 5:50pm, you will regain access at 6pm provided that the total number of API calls between 6pm today and 6pm yesterday is below your quota.

Our default quotas across all Find A Helpline API endpoints are:

Production tier accounts may have their daily quota increased upon request.

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