







Permissioned data on atproto — pick your depth
A private room in a place with no walls: how engineers are adding permissioned data to atproto. Read it plain-language or technical.
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.

atproto made simple: granular permissions - underreacted
atproto made simple: granular permissions - underreacted
Permissioned Data Diary 5: What’s in a Name? - Daniel's Leaflets
In this permissioned data diary, we dive deep into the URI structure for permissioned data on atproto and use it to motivate a bunch of the larger design.
Permissioned Data Diary 5: What’s in a Name? - Daniel's Leaflets
In this permissioned data diary, we dive deep into the URI structure for permissioned data on atproto and use it to motivate a bunch of the larger design.
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.

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 Arbiter - Group Management for Permissioned Spaces and Beyond - Zicklag's Leaflets
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.
Atproto spaces · aturi.to
Browse your permissioned atproto data: records kept outside your public repo.
Overview | HappyView
Spaces are containers for permissioned data in atproto. Unlike regular public records that live in a user's repo, space records are gated by membership — only members can read or write data within a space.

Evaluating permissioned spaces for community contexts - meri's missives
A look at Bluesky's proposed approach to private data on ATProto
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.
Habitat & permission spaces for organizations - building [at] habitat
Habitat's road to release: 03 ReBAC on spaces - building [at] habitat
Habitat's road to release: 04 Chalk - building [at] habitat
Habitat's road to release: 05 adopting opensocial - building [at] habitat

Permissioned Spaces Made Pretty — Lexidraw
atproto spaces repo export: feels a bit odd to do a giant index block. seems like this will put a low (and hard) cap on the number of record…