







What is OAuth?
Wherein I [try to] answer a seemingly straightforward question: "WTF is OAuth, anyhow?"

The OAuth mechanism and its most common flows
Every single time when you want to sign in to an application and you click on “Login with Google”, you are starting a protocol called…

Building OAuth Authentication for Bluesky: A Complete Guide for Web and iOS Apps - Lost in Inference
How to implement secure, standards-compliant OAuth 2.1 + PKCE authentication for AT Protocol apps with separate web and mobile flows
index.html · by atprotofans.com
An browser-side ATProtocol OAuth application with no dependencies that verifies supporters

Claude is inheriting a centralized app-centric bias here (which existing OAuth profiles may share) To wind up in a decentralized world where all "my data" lives on "my PDS" -- regardless of how many atproto apps I authorize to store stuff there for me (see 🧵) -- we should invert that paradigm
Paul Rohr
TL/DR = yes, it's a subtle conceptual shift: - from app-centric (apps control identity/data, delegating access to you at signin) - to identity-centric (you control identity/data, delegating access to apps at signin) Really looking forward to how the team evolves the OAuth UX to address this! /END
🦫 alert! We published the second episode of "Teach the Web new Tricks", featuring native support for @atproto.com ! Learn more how we improve user agency and privacy at webbeef.org/atproto.html : - Native at:// protocol support. - Log in your PDS and forget OAuth ! - Authorize 3rd parties
I need folks to understand that there are also a LOT of users who prefer app passwords bc OAuth makes them feel uncomfortable.
im'bcmgs'im
surf.social looks amazing but idk about this login experience... i dont normally wanna put my password for one site into another site 🙃
3) it still doesn't fully cover all use cases well or at all 4) bsky.app still didn't manage to implement OAuth at all Yes, we should all be moving to OAuth w/ scopes, that's the goal, but give people some slack, it's all still rather fresh, we'll get there… (yes, it's me, I'm those people)
this would be my answer too, atproto oauth is unironically extremely based
hailey
i guess in a way this is the most widely used one, but also one that is severely underused in other ways. definitely identity. i've long been of the opinion that there are obviously cool things that come from public data and all the public pieces of the proto, but identity is higher impact.
I've been saying for nearly a year that getting the UX right for bsky's OAuth deployment is a major inflection point for reinforcing users mental models If we phrase things right, people will learn that this password UX controls access to my identity + slices of my atmosphere data (via my PDS)
Paul Rohr
Claude is inheriting a centralized app-centric bias here (which existing OAuth profiles may share) To wind up in a decentralized world where all "my data" lives on "my PDS" -- regardless of how many atproto apps I authorize to store stuff there for me (see 🧵) -- we should invert that paradigm
I've been digging deep into what Elixir atproto OAuth can look like. This is not the final version yet, but it's starting to shape up. blog.annot.at/side-quest-an-elixir-atproto-…
Side-quest: An Elixir atproto OAuth library
blog.annot.at