API Reference

When making requests to the Twilio API, the server responds with some status codes to signify the success or failure of that request. Here's a table of common status codes you may come across, and their meanings.


Status CodeDescription
200Request was successful
201A Resource has successfully been created
400 (Invalid Request)The server could not process the user's request
401 (Unauthorized)Request was not authorized due to invalid authentication credentials
404 (Request not found)Request cannot be found because it does not exist.

Rate Limits

  • Using a free account, you will not be able to create more than one subaccounts.
  • Requests using the the Test Credentials cannot log into the Twilio CLI