Getting started
Three steps to verifying customers.
Create an account, send a verification code to a real phone number, then configure the sender channels your users will see.
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From sign-up to first verified user in an afternoon.
Follow these three steps and you'll have OTP verification running across SMS, voice, and email.
- 01
Sign up for Bird.
Create your account and get an API key straight away. Passcodes draw on your organization's prepaid balance, so top it up before the first one goes out.
- 02
Verify your first customer.
Send a one-time passcode and check the result with two API calls. Works over SMS, voice, WhatsApp, or email with no code change. Read the quickstart →
- 03
Configure your senders.
Choose which channels to use, set fallback order, and pick each channel's sender identity or your own email domain. Most configurations take effect immediately. Senders guide →
Put it into practice.
Continue with the documentation, guides and examples for this topic. Resources are in English.
Fraud-resistant verification, any channel.
One API for OTP, 2FA, and passwordless login across SMS, voice, WhatsApp, and email. Sign up and verify your first user in under five minutes.