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AT Protocol Developers

@atproto.com
121K followers 21 following 263 posts

Social networking technology created by Bluesky. Developer-focused account. Follow @bsky.app for general announcements! Bluesky API docs: docs.bsky.app AT Protocol specs: atproto.com

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AT Protocol Developers @atproto.com · 20/08/2026
If you want to start testing against a live PDS with atproto spaces capability, you can log into your BPS account and create an invite code today bsky.network/account/
Screenshot of how to create an atproto spaces alpha invite code

Atproto Spaces Alpha
Create an invite code to sign up for an atproto spaces alpha account at spaces-alpha.host.bsky.network/account/sign-up.
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AT Protocol Developers @atproto.com · 15/03/2024
Infrastructure providers like Relays focus on combating network abuse and mitigating infrastructure-level harms, while clients and labelers handle more granular content moderation decisions.
A diagram showing App & Community Moderation (Client, Labelers) versus Network Abuse & Infrastructure Moderation (Relay, AppView)
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AT Protocol Developers @atproto.com · 15/03/2024
Reporting content is an important part of moderation. Users can choose which of their active Labelers to report to, giving them control over who should be informed of an issue.
A screenshot of the reporting dialog. Anti-social behavior: harassment, trolling, or intolerance. Select the moderation service(s) to report to: Bluesky Moderation Service is selected.
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AT Protocol Developers @atproto.com · 15/03/2024
Labels can be defined at the protocol level or custom-made by Labelers. They can be informational, topical, curational, or moderational. Users can tune how the application handles these labels.
An illustration of how labels are configured. Blurs can be Content, Media, or None. Severity can be Alert, Inform, or None.
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AT Protocol Developers @atproto.com · 15/03/2024
The Bluesky app hardcodes our in-house moderation and allows users to subscribe to additional moderation services on top. Other applications may choose their own core moderators, or use Bluesky’s. This provides a strong foundation while giving users more options.
A diagram illustrating that the bluesky app hardcodes the bluesky labeler and then subscribes to multiple community labelers.
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AT Protocol Developers @atproto.com · 15/03/2024
The AT Protocol is an open network of services that anyone can provide. We separate moderation into a dedicated service called the Labeler. Labelers produce "labels" associated with user-generated content, which clients can read to decide what to hide, blur, or drop.
A diagram showing the architecture of moderation. The client communicates to the PDS. The PDS to the AppView. Labelers to the AppView.
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AT Protocol Developers @atproto.com · 28/04/2023
just added a period to our bio. now we’re getting serious
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AT Protocol Developers @atproto.com · 26/04/2023
Last week we launched app passwords, a short-term solution for authentication that will let users experiment with new clients without fully trusting them with their passwords. When using third-party apps, please use an app password while we implement SSO with scoped permissions. In settings:
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