The Field59 API uses basic HTTP authentication. Not all requests require authentication, but those that do, require the username and password of the requesting user to be passed in the authorization header. Please make all requests through our secured domain:

The Field59 API is a REST(ful) API. When making a request that requires XML, wrap all text in CDATA markup. All URLs should be URL-encoded. If a parameter is not available or is not in use, omit the node.

To verify that the username and password you have are valid and authorized, check the status by making a GET request to this URL: