API usage limits

In order to provide an adequate and constant level of service to all users, we need to protect Cantook Hub against abusive use.

Here are Cantook Hub APIs usage limits:

• a maximum of 50 calls to the first page of the catalog synchronization API, either full (publications/full.[format]) or differential (publications/delta.[format]), per hour, per organization;
• a maximum of 5,000 calls to the publication synchronization API (/api/organizations/[organization_id]/publications/[isbn].[format]) per hour, per organization.

The HTTP 429 response code (Too many requests) is returned to the caller once these limits have been reached.