







Local AT Protocol testnet for integration testing in PHP - socialdept/atp-testnet
ATProtocol Attestations: Cryptographic Signatures for the Decentralized Web - Nick's Blog
This post introduces the formal ATProtocol attestation specification, a framework for adding cryptographic signatures to ATProto records through two complementary patterns: inline attestations that embed signatures directly in records, and remote attestations that store proof in separate repository records. The specification prevents replay attacks through repository binding, uses CID-based content addressing for integrity, and provides the cryptographic foundation for verified credentials, trusted content, and authenticated interactions in the decentralized ATProtocol ecosystem.
OAuth Improvements - AT Protocol
We've been making improvements to the end-user and developer experiences with atproto OAuth.

tijs/atproto-oauth
Framework-agnostic OAuth integration for AT Protocol (Bluesky) applications
ATPI - AT Protocol API
Direct JSON access to AT Protocol data. Simple, fast, no authentication required. Just prefix atpi. to any AT Protocol URL.

OAuth Roadmap · bluesky-social atproto · Discussion #2656
OAuth is nigh! Protocol support has been a long time coming and we are pumped. It should greatly improve the user and developer experiences building secure apps and integrations on atproto. And cou...
atproto-experiments - Ha Ja Ba Ra La
A foundation for building tools on the AT Protocol using Unison Programming Language.
ATProtoFans - Support Your Favorite Creators
Decentralized supporter attestation service for the ATProtocol ecosystem. Support creators with cryptographically verifiable relationships.
ATProtoFans - Support Your Favorite Creators
Decentralized supporter attestation service for the ATProtocol ecosystem. Support creators with cryptographically verifiable relationships.

ATProto Integration - poke_around
OAuth, PDS sync, custom lexicons, and user bookmarking via the AT Protocol.


So as a bit of a weekend project, I put together a Web 1.0-inspired forum system, but used #ATProto for users/auth (and DM notifs. I wanted to make a streamlined phpBB but with modernized tech Check out the code, github.com/randyau/bsBB or play with the live instance at forum.counting-stuff.com
Counting BS BB
forum.counting-stuff.com@atpi.at is live. A tiny set of tools and integrations to resolve AT Protocol URLs and preview atproto JSON data! - Direct URL prefixing (atpi.at//...) - npm pkg - Chrome Extension - VS Code Extension and... some fun ones! Check out: docs.atpi.at It’s not just an API. It’s ATPI. GET it?
ATPI - AT Protocol API
docs.atpi.at