







Learn how to use Demonstrating Proof-of-Possession (DPoP) to sender constrain access tokens in Auth0.
OAuth 2.0 DPoP-bound Access Tokens :: Spring Security
RFC 9449 OAuth 2.0 Demonstrating Proof of Possession (DPoP) is an application-level mechanism for sender-constraining an access token.
Securely authenticate with your Bluesky account using OAuth 2.0 with DPoP (Demonstrating Proof-of-Possession) tokens.
OAuth Patterns - AT Protocol Docs - AT Protocol
Auth for AT Protocol application developers.

OAuth Patterns - AT Protocol Docs - AT Protocol
Auth for AT Protocol application developers.

Local First Auth Specification
Technical specification for Local First Auth Specification
OAuth for AT Protocol | Bluesky
We are very happy to release the initial specification of OAuth for AT Protocol! This is expected to be the primary authentication and authorization system between atproto client apps and PDS instances going forward, replacing the current flow using App Passwords and createSession over time.

better-auth-bsky - npmx
A better-auth plugin that adds ATProto/Bluesky OAuth 2.1 authentication (DPoP, PAR, PKCE) via @atcute/oauth-node-client.

OAuth for ATProto Apps Part 2: Mobile Implementation - Lost in Inference
Part 2 of a 2-part series on implementing OAuth authentication for ATProto (Bluesky) applications.

Building AIP: An ATProtocol Authorization Gateway - Nick's Blog
OAuth is the first challenge developers face in the atmosphere. This post is about AIP, the authorization gateway we built at Graze Social to alleviate some of the pain.
OAuth Improvements - AT Protocol
We've been making improvements to the end-user and developer experiences with atproto OAuth.




Updated Auth Scopes Proposal · bluesky-social atproto · Discussion #4013
This is a discussion thread for the July 2025 Auth Scopes proposal
🚨 Docs News!! you all asked for it, so I did a medium-sized refactor of the Auth section of the atproto docs: atproto.com/guides/auth I appreciated all the little pushes here as well as contributions from @danabra.mov and @zzstoatzz.io — much happier with the flow here now and hope you will be too!
Auth - AT Protocol Docs - AT Protocol
atproto.com