Read-only
Version 1 reads. It does not change your account, send a message or change how a call routes.
Customer API
Read your own Users, Numbers and Calls from your own systems.
One key for each Customer
Send your API Key in the x-api-key header. See Authentication.
Stable
Within v1 the API only grows. See Versioning.
One shape of error
Every error is an RFC 9457 problem document. See Errors.