Three steps to number intelligence.

Create an account, look up a number to see what data is available, then add the API call to your sign-up or send flow.

From sign-up to your first lookup in minutes.

Follow these three steps and you'll have number validation running in your production flow.

  1. 01

    Sign up for Bird.

    Create your account and get an API key. The free tier includes enough volume to build and test your integration before you commit.

  2. 02

    Look up your first number.

    Run one API call against any phone number. Get the carrier, line type, country, and reachability status back in milliseconds.

  3. 03

    Integrate into your workflow.

    Add the lookup before your sign-up form submits or before each message sends. Block unreachable numbers at the source and reduce wasted delivery attempts.

Know your numbers before you send.

Carrier, line type, and reachability data for any number, anywhere. Sign up and run your first lookup in under five minutes.

Sign up for BirdExplore the Lookup 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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