---
title: "Deliver sign-in codes by SMS"
canonical: "https://bird.com/integrations/auth0"
---

# Deliver sign-in codes by SMS

Connect Auth0 to Bird Verify for multi-factor authentication and passwordless login. Auth0 creates and checks the code; Bird delivers it to your customer's phone.

[Read the setup guide](/docs/knowledge-base/verify/auth0)

[Explore Bird Verify](/verify-api)

## Choose your setup

Start with the guided setup today. It connects Bird to Auth0's Custom Phone Provider for SMS verification across MFA and passwordless flows.

### Guided setup: available now

Create a Bird API key with Verify permission, add the provider code and secret in Auth0, then enable the phone flows you need. The guide includes screenshots, configuration steps and a test checklist.

[Set up Auth0 with Bird](/docs/knowledge-base/verify/auth0)

### Marketplace installation: coming soon

An Auth0 Marketplace option for the Send Phone Message MFA flow is coming soon. It is not yet available to install. Use the guide to connect Bird now, including for passwordless SMS login.



## Related resources

- [Workflow automation](/automate/workflows) (product)
- [Verify your first customer](/docs/get-started/verify-your-first-customer) (docs)
- [Verify phone numbers at signup](/learn/series/verify-phone-numbers-at-signup) (video)
- [How do I use Bird from a low-code tool like n8n or Zapier?](/explained/platform/how-do-i-use-bird-from-a-low-code-tool-like-n8n-or-zapier) (answer)

[Get an implementation brief](/learn/workspace?topic=integrations)