







An Astro integration for the AT Protocol. Implements authentication and content loaders for ATProto records.
ATProto Integration - poke_around
OAuth, PDS sync, custom lexicons, and user bookmarking via the AT Protocol.

Understanding Atproto - AT Protocol Docs - AT Protocol
Dive deeper into the concepts behind the AT Protocol.

The AT Protocol | Bluesky
The AT Protocol (Authenticated Transfer Protocol, or atproto) is a standard for public conversation and an open-source framework for building social apps.

ATProto Architecture
Visual summary of the AT Protocol architecture: PDS, AppView, identity, records, lexicons.

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.

astrolabe
This is a tool for browsing AT Protocol ("atproto") repositories and records. You can enter an account identifier or full URI to view content as JSON. It works by fetching data directly from account PDS instances: the data itself is not hosted by this service.
ATPI - AT Protocol API
Direct JSON access to AT Protocol data. Simple, fast, no authentication required. Just prefix atpi. to any AT Protocol URL.

Streaming Data - AT Protocol Docs - AT Protocol
Synchronizing and streaming data from the AT Protocol.

ATProto Garden
A curated directory of apps, tools, and libraries built on the AT Protocol
Welcome to the new atproto.com - AT Protocol
We've updated just about everything about atproto.com to make it easier for developers to just build things.


AT Protocol - AT Protocol
Specification for the Authenticated Transfer Protocol (AT Protocol)

The Atproto Spaces Alpha is Live - AT Protocol
Atproto Spaces, formerly known as “the permissioned data protocol,” is a new extension to atproto that enables non-public data. The alpha is now officially open. Here’s how to develop with it and what to expect as we work towards the full release.

the at protocol is amazing. i've read a lot about it and haven't made anything with it yet. macwright.com/2026/03/16/atproto
I haven't made anything with AT Proto yet
macwright.comI'll be talking about @astrosky.eco's nebra package, which makes it super easy to post & stream scientific data on the AT Protocol - including the two month-long tech demo of doing this that we've been running with NASA's astronomical transients feed!
Robin Berjon
Friends from the Internet! This Thursday, join us for CID Congress — with a session dedicated to SCIENCE and what fun content-addressed data can do there! luma.com/ptrjn16w
Compose | Taproot
Compose | Taproot

ATScience Ecosystem Map

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