Providers

Create Provider

Link a telephony provider account

post/agents/phone-numbers/providers

Headers

Cartesia-Version'2026-03-01' date required

Example:2026-03-01

API version header.

type'twilio' required

Must be "twilio".

account_sidstring required

Your Twilio account SID.

api_key_sidstring required

A Twilio API key SID.

api_key_secretstring required

The corresponding API key secret.

region'us1' | 'ie1' | 'au1'

The Twilio region the phone number and API key are configured for. us1 (US), ie1 (Ireland), au1 (Australia). Default is us1.

Provider created.

type'twilio' required

Always "twilio".

idstring required

Unique identifier for the provider.

account_sidstring required

The Twilio account SID.

api_key_sidstring required

The Twilio API key SID (partially masked).

region'us1' | 'ie1' | 'au1' required

The Twilio region the phone number and API key are configured for. us1 (US), ie1 (Ireland), au1 (Australia). Default is us1.