Three steps to programmable voice.

Create an account, connect your SIP trunk or phone number, then place your first call to verify the audio path end to end.

From sign-up to first call in an afternoon.

Follow these three steps and you'll have voice calls running on your own numbers.

  1. 01

    Sign up for Bird.

    Create your account and get an API key straight away. Calls draw on your organization's prepaid balance, so top it up before the first one goes out.

  2. 02

    Connect a SIP trunk.

    Bring your existing carrier relationship or use Bird's network. Configure inbound and outbound routing in minutes. SIP trunks guide →

  3. 03

    Place your first call.

    Make an outbound call with one API request. Hear it ring on your own phone and confirm the audio path works end to end. First call guide →

Carrier-grade voice infrastructure built for developers.

Inbound, outbound, and SIP trunking on a global network. Sign up and place your first call in under five minutes.

Sign up for BirdExplore the Voice platform

Start with one channel.
Add the others when you're ready.

A test API key is yours immediately. Production unlocks when you add a payment method and verify a sender.

Get startedRead docs

Using Claude Code, Cursor, or Codex? Copy a setup prompt and your agent installs the Bird CLI and skills for you. Pick yours:

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