Send one-time passcodes over SMS for signups, two-factor logins, and step-up checks. Bird formats texts for iOS and Android autofill across 40 languages, selects an eligible sender ID for the destination country, and handles code hashing, expiration, and channel fallback when a text is delayed.
Check the code
Harbor
POST/v1/verify/verifications/check
200{ "success": true, "reason": null, "attempts_remaining": null }
Check the code
Harbor
POST/v1/verify/verifications/check
200{ "success": true, "reason": null, "attempts_remaining": null }
Check the code
Harbor
POST/v1/verify/verifications/check
200{ "success": true, "reason": null, "attempts_remaining": null }
Bring the verification into your sign-in flow. Collect the code, check the answer, and help the customer continue.
Go live immediately with Bird’s pre-configured senders and localized templates, or bring your own registered Sender IDs for the markets you serve.
Start sending right away with Bird Verify or Authifly, or select your own registered SMS Sender ID for the workspace or individual countries. When a default workspace Sender ID is not registered for a destination, Bird falls back to Bird Verify so the user still gets their code.
Messages lead with the passcode so iOS and Android keyboards can offer one-tap autofill, followed by the expiration window and security warning. Bird automatically picks from 40 built-in translations based on the phone number’s country code, or lets you pass the user’s app language on the request.
Confirm the user’s input by passing their phone number and the code they typed, with no verification ID to track across requests. Bird hashes the passcode, enforces expiration windows and per-recipient rate limits, and returns remaining attempt counts when a user mistypes a digit.
Add fallback channels, block traffic to unsupported regions, and tune passcode lifetimes and retry limits.
Switch to WhatsApp, voice, or email when a carrier delays a text without resetting the session timer.
→Disable countries you do not serve to block SMS pumping and set the channel order for each market.
→Configure 4-to-8-digit passcodes, expiration windows, attempt limits, and resend cooldowns.
→Organize teams in workspaces, control API access, and trace changes through audit logs.
Organization
Harbor
Access stays in its workspace.
Production/API keys
Signup service
ActiveAlex Lee
Admin
Today · UTC
Audit log
Organization
Harbor
Access stays in its workspace.
Production/API keys
Signup service
ActiveAlex Lee
Admin
Today · UTC
Audit log
Organization
Harbor
Access stays in its workspace.
Production/API keys
Signup service
ActiveAlex Lee
Admin
Today · UTC
Audit log