KWS API Reference

A link to the KWS API specification.

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KWS uses a simple HTTPS API. See the KWS API specification here.


  • All requests to the KWS API should include a user-agent header containing a non-empty string that identifies their client and/or HTTP library. Failure to do so will result in a “Request blocked” 403 response.
  • Rate limiting is fixed to 10 requests per hour per unique parent email address for all KWS API endpoints.