You must authorize your requests with an API-key that is passed in the body of the request.
To get the API key, you must:
  • Open Channels → Add Channel → API;
  • Fill in the Redirect URL field. Webhooks will be sent to it;
  • Use the specified secret key for requests to the API.

Read more about the API-channel at our Knowledge Base

If an incorrect secret key is used, the API reports an error.