# Build "Sign in with Your App" using Supabase Auth

DevFeed: [Build "Sign in with Your App" using Supabase Auth](<https://devfeed.tech/articles/build-sign-in-with-your-app-using-supabase-auth-469.md>)

Original publisher: [Read original article](<https://supabase.com/blog/oauth2-provider>)

Author: Cemal Kılıç

Published: 2025-12-04T07:00:00Z

Content type: article

Language: en

Sources: [Supabase Blog](<https://devfeed.tech/sources/supabase-blog.md>)

Topics: [Supabase](<https://devfeed.tech/topics/supabase.md>), [OAuth](<https://devfeed.tech/topics/oauth.md>), [OpenID connect (OIDC)](<https://devfeed.tech/topics/oidc.md>), [Authentication](<https://devfeed.tech/topics/authentication.md>), [Model Context Protocol](<https://devfeed.tech/topics/model-context-protocol.md>), [Access Control](<https://devfeed.tech/topics/access-control.md>), [Artificial Intelligence](<https://devfeed.tech/topics/ai.md>)

Tags: [access-control](<https://devfeed.tech/tags/access-control.md>), [ai-agents](<https://devfeed.tech/tags/ai-agents.md>), [authentication](<https://devfeed.tech/tags/authentication.md>), [authorization](<https://devfeed.tech/tags/authorization.md>), [enterprise](<https://devfeed.tech/tags/enterprise.md>), [identity](<https://devfeed.tech/tags/identity.md>), [mcp](<https://devfeed.tech/tags/mcp.md>), [model-context-protocol](<https://devfeed.tech/tags/model-context-protocol.md>), [oauth](<https://devfeed.tech/tags/oauth.md>), [openid-connect](<https://devfeed.tech/tags/openid-connect.md>), [sso](<https://devfeed.tech/tags/sso.md>)

## AI overview

Supabase Auth now provides OAuth 2.1 and OpenID Connect server capabilities, allowing a Supabase project to act as an identity provider. The article describes use cases including MCP authentication for AI agents, third-party developer ecosystems, partner API access, and enterprise single sign-on.

## Source excerpt

Supabase Auth now supports OAuth 2.1 and OpenID Connect server capabilities, turning your project into a full-fledged identity provider for AI agents, third-party developers, and enterprise SSO.