AT Protocol Developers

Developers, build in an open ecosystem that will never lock you out 🛠️

Check out tutorials, starter templates, and a project showcase for the Bluesky API on our new docs site here!

docs.bsky.app

Bluesky Documentation | Bluesky

Explore guides and tutorials to the Bluesky API.

⚡️ Now ready for development: custom algorithms!

We've put together a starter kit with instructions on how to implement your own custom algorithm here.

https://github.com/bluesky-social/feed-generator

app devs: we have some new AT OAuth resources and examples for you!

linked off this intro page we have new example projects showing how to do client auth using reference SDKs for TypeScript and Go.

and the buried lede: an Expo library for doing AT OAuth in React Native mobile apps

OAuth Introduction - AT Protocol

OAuth for AT Protocol application developers.

OAuth updates for app devs!

Over the past few weeks we've been chatting with devs and doing a pass over our SDKs and docs to address issues. This blog post summarizes the main changes we've made, some tweaks still in flight, and links to longer form writing about security and design trade-offs

OAuth Improvements | Bluesky

We've been making improvements to the end-user and developer experiences with atproto OAuth, and wanted to share some updates.

are you a dev building an independent app on atproto and want a smoother OAuth account sign-up flow?

are you a user wanting visibility and control over OAuth sessions?

PDS operator wanting to add some ✨sparkle✨?

this blog post is for you!

Network Account Management | Bluesky

Accounts in the atproto network are app-neutral: a single account can be used for short posts, long-form blogging, events, and more. But until now, the best way for users to create and manage accounts...

interested in relay infrastructure and firehose protocol details?

we have an update for you about our new relay implementation, and progress on rolling out Sync v1.1

Relay Updates for Sync v1.1 | Bluesky

We have an updated relay implementation which incorporates Sync v1.1 protocol changes, and are preparing to switch over the bsky.network relay operated by Bluesky. This post describes new infrastructu...

bsky.storage is an independent project that automates periodic account data backups to a storage network, and has a UI for PLC identity backup and recovery

tools like this give users stronger control of their online future, without needing to self-host an entire PDS

Storacha Network @storacha.network

The internet was meant to be free - your identity shouldn’t be locked behind a login screen. Introducing bsky.storage 🐔🤝🦋 Now you can back up your Bluesky data hourly + recover your account if Bluesky ever goes dark. Simple, free, & fully in your control. Learn more: medium.com/@storacha/in...

Introducing bsky.storage: Own Your Social Identity

Take back control of your online identity. Our new tool, bsky.storage, backs up your Bluesky account hourly — free, secure &…

👋 Hello to the 260+ self-hosters that have joined the network over the last week! (Notice how nothing has changed about the in-app experience? 😎)

Developers, in case you missed it, we enabled federation for self-hosters last week. Read this guide to learn how to set up your own server!

Early Access Federation for Self-Hosters | Bluesky

For a high-level introduction to data federation, as well as a comparison to other federated social protocols, check out the Bluesky blog.

We've been hard at work on a new website with new guides, better docs, more translations, even our very own blog. We think it looks pretty sharp, too. It's now easier than ever to just build things with AT Protocol.

atproto.com

Announcing AT Protocol Grants, to foster the growth and sustainability of the atproto developer ecosystem!

In the first iteration, we’ll distribute a total of $10,000 in micro grants of $500 to $2,000 per project based on factors like cost, usage, and more.

Read more and apply here:

Announcing AT Protocol Grants | Bluesky

We’re excited to announce the AT Protocol Grants program, aimed at fostering the growth and sustainability of our developer ecosystem.

Pleased to announce that an Authenticated Transfer Protocol (ATP) working group has been created at the IETF!

Grateful to everybody who participated in the BoF and chartering process. Details on next steps and how to get involved inside.

atproto.com/blog/kicking...

Kicking off the ATP Working Group at the IETF - AT Protocol

The Authenticated Transfer Protocol working group has been created at the IETF. Now that we have a charter, we are looking forward to participation from the broader ATP ecosystem.

Developers! Starting today, you can host your own data.

Read our blog post on early access federation for self-hosters for details on how to get started:

docs.bsky.app/blog/self-ho...

Early Access Federation for Self-Hosters | Bluesky

For a high-level introduction to data federation, as well as a comparison to other federated social protocols, check out the Bluesky blog.

Bluesky @bsky.app

Today, we’re excited to announce that the Bluesky network is federating, or opening up in a way that allows you to host your own data! Read more here for how this will affect your experience on Bluesky (in short: it won’t) and why this matters.  bsky.social/about/blog/0...

Bluesky: An Open Social Web - Bluesky

Today, we’re excited to announce that the Bluesky network is federating, or opening up in a way that allows you to host your own data.

congrats to @graysky.app, a third-party open-source bluesky client! 🔥

check out the source code here: github.com/mozzius/gray...

because the AT Protocol is open, third-party developers can create entirely separate frontends for the network. find more clients here: atproto.com/community/pr...

If you missed yesterday's premiere of our @codetv.dev episode, we've got you. Watch any time you want, and get started building with this collection of resources.

atproto.com/blog/atmosph...

Build an Atmospheric Website (with CodeTV)

Watch the episode and follow along to build a website on AT Protocol.

Moderation is a crucial aspect of social networks. However, traditional moderation systems leave communities vulnerable to sudden policy changes and mismanagement.

To build a better social media ecosystem, it's necessary to try new approaches.

docs.bsky.app/blog/bluesky...

Bluesky's Moderation Architecture | Bluesky

Moderation is a crucial aspect of any social network. However, traditional moderation systems often lack transparency and user control, leaving communities vulnerable to sudden policy changes and pote...

"Find friends by phone" is a common tool in social networks. We're proposing a secure scheme and requesting comments from the dev community.

Goals:
・Double opt-in: you're not findable by your phone unless YOU use the tool
・Secure to enumeration attacks
・Resistant to decryption if compromised

Request For Comments: A secure contact import scheme for social networks | Bluesky

This article outlines plans for a future Bluesky feature \- it doesn’t exist yet\! By sharing our ideas early, we hope to solicit feedback from the community.

If you're reading this post, that means you can start playing around with our API. No other access needed! 🚀

Check out our API here: https://github.com/bluesky-social/atproto/tree/main/packages/api

Read our docs here: https://atproto.com/

Thrilled to be working with @bad-example.com, whom you know from the excellent @microcosm.blue tools, on making the atproto network ever more resilient

atproto.com/blog/introdu...

Introducing Hubble: A Public Mirror for the Whole Atmosphere - AT Protocol

Bluesky is providing a grant to the creator of Microcosm to build a full mirror of public data on the Atmosphere to help make the network more resilient.

We've got an updated protocol roadmap out, covering the next few months.

Look forward to seeing folks at AtmosphereConf later this week!

AT Protocol Roadmap (Spring 2026) - AT Protocol

Updates to the AT Protocol roadmap, including Permissioned Data and Account Experience.

We've released a self-hostable reference implementation of a PLC read-replica service to make the Atmosphere ever more decentralized. @retr0.id has details on what this all means.

atproto.com/blog/plc-rep...

PLC Read Replicas - AT Protocol

Introducing a self-hostable did:plc read-replica service

✨ Our first featured community project — @skyfeed.app, created by @redsolver.dev!

SkyFeed allows users to create a dashboard out of their feeds, profiles, and more, and the integrated SkyFeed Builder easily builds custom feeds off of regexes or lists.

Read more about the project here:

Featured Community Project: SkyFeed | AT Protocol

SkyFeed is a third-party client that allows users to create dashboards of their feeds, profiles, and more. Additionally, SkyFeed Builder allows Bluesky users to easily create their own custom feeds ba...

Hey devs, we just added search to our docs!

Check it out 🕵️ 🔎 atproto.com

The AT Protocol

A social networking technology created by Bluesky.

We’re launching microgrants for labeling services! We're distributing $10,000 total in microgrants of $500 each.

Read this blog post for more details about the program and how to apply:

docs.bsky.app/blog/label-g...

Labeling Services Microgrants | Bluesky

We’re launching microgrants for labeling services on Bluesky!

An upstream network problem has been impacting almost all Bluesky network services for the past 3-4 hours. Posting and other public interactions are disrupted for many accounts.

As connectivity recovers, the firehose and other services will see large surges of events.