The permissioned data proposal has the concept of membership, but leaves it to the app to orchestrate it. The arbiter is our idea for a general-purpose, interoperable ATProto group membership service.
Permissioned Data Diary 2: Buckets - Daniel's Leaflets
The second in a series of posts building up a solution to permissioned data on atproto. We introduce buckets: a new protocol primitive for creating a shared social context.
Permissioned data is a love triangle - Nick's Blog
Permissioned data is a love triangle between the user, the identities they grant permissions to, and the applications everyone uses to view controlled data. We don't need to change or reinvent the protocol to have it, because ATProtocol already supports it.
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 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.
Permissioned Data Diary 1: To Encrypt or Not to Encrypt - Daniel's Leaflets
The first in a series of posts about major design decisions along the way to a permissioned data protocol for atproto.
Permissioned Data Diary 3: Your Bucket, My Data - Daniel's Leaflets
The third in a series of posts building up a solution to permissioned data on atproto. We look at two different models for where buckets live and why the simpler-looking one doesn’t work out.
calendar pt. 1: ATProtocol beyond AppViews - building [at] habitat
our approach to permissioned data (part 1!)
Spaces as Layers - Nick's Blog
Public anchor records paired with sidecar records in permissioned spaces give ATProtocol apps a composable pattern for blending open discoverability with controlled access.
Evaluating permissioned spaces for community contexts - meri's missives
A look at Bluesky's proposed approach to private data on ATProto
What is a Group Host? - at:// pizza thoughts
Describes an hosting pattern for Atmospheric Group accounts, including group creation and app authorization flows
atproto.camp — A directory of ATProtocol user groups
A directory of ATProtocol user groups. Find your local community or start one.
ATProto User Intents Demo
This is a demo tool which allows atproto accounts to configure a reuse declaration for their public data. You can read more about this atproo mechanism in the "User Intents for Data Reuse" proposal from March 2025. Any account in the atproto network (including Bluesky accounts) can use this tool via OAuth. The source code for this demo is linked above.
Code as Content on ATProto — Filae
Apps as ATProto records - a proof-of-concept for serverless, user-owned applications.
Account delegation for atproto: orgs, aliases, alts and more - Nel Ramblings