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Bluesky is building a social protocol. We released “ADX” (the X stood for Experiment) in May. Now that the design is starting to solidify, we’re renaming it to the “Authenticated Transport Protocol” — the “AT Protocol.”

In the spring, we released “ADX,” the very first iteration of the protocol. Over the summer we improved ADX’s design, and today we’re sharing a preview of what’s to come.

The AT Protocol

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We’re hiring a Go dev! If you have experience with large-scale systems and are excited to build fast and scalable decentralized social networks, let’s talk:

Go Developer

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Apr 22

With the release of app passwords today, we’re excited to share an overview of the rapidly growing

developer ecosystem!

The AT Protocol Developer Ecosystem

The AT Protocol's developer ecosystem is growing rapidly. Today we’re shipping app passwords, a short-term solution for authentication that will let users experiment with new clients without having...

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Apr 14

Like our approach to algorithmic choice, our approach to moderation allows for an ecosystem of third-party providers. Moderation should be a composable, customizable piece that can be layered into your experience.

A customizable, composable approach to moderation that prioritizes safety and gives users and developers more control.

Composable Moderation

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Join Bluesky's closed beta as we approach our public launch! Please fill out the questions below, and you'll receive a DM or email with an invite code shortly.

Apr 7

Substack writers: If you’d like to try Bluesky, here’s a form to get early access. We’re still working our way through the signup list for our private beta, but would like to give faster access to writers at this time!

docs.google.com

Early Access Program

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Mar 31

Algorithmic choice was one of the original goals we set out to achieve. We’re excited to be able to start sharing more details of our approach.

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Algorithmic choice Algorithms dictate what we see and who we can reach. We must have control over our algorithms if we're going to put trust in our online spaces. The AT Protocol supports open algorithms so users have more control over their experience.

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Your attention is an invaluable resource. We’ve been working on creating a composable, customizable marketplace of algorithms that lets you take control of how you spend your attention.

Your attention is an invaluable resource. We want a future where you control what you see on social media.

Algorithmic choice

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Domain names as handles! Why are we excited about this feature in the

? It's a way to achieve decentralized verification and give users more control over their identity. Thread 🧵

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You can use domain names as handles in Bluesky! Here’s why we’ve designed the AT protocol to let you join a social network with a domain name as your handle.

Domain Names as Handles in Bluesky

Today we got our first custom domain name handle registered on Bluesky. Domain name handles are a way for us to improve the state of trust and control users have over their social identities online.

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Our end goals are to support choice for users, freedom for developers, and control for creators. We're designing for a composable ecosystem where the convenience and scale of centralized services can be combined with the openness and resilience of decentralized protocols.

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Here are the protocol features we're excited to finish: - Domain names as usernames & account portability - Algorithmic choice & custom feeds - Composable moderation & reputation systems

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Time for a tweet thread on the blog post I published yesterday. 🧵 Our main work at

so far has been on the

. We built an app to make sure our protocol design supports a good user experience.

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What we’ve been up to lately

Bluesky Private Beta Update

We’ve started inviting people from our waitlist to test out a beta app. This app will be a reference client for the AT Protocol, and a landing place for users to enter the ecosystem.

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Jan 18

We’re looking for a web developer that deeply cares about user experience. If you want to work with us, now is the time!

Web Developer

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Nov 28, 2022

Are you a DevOps engineer? Have you maintained large-scale software deployments? Do you love infrastructure-as-code, observability, and security? Let’s talk! blueskyweb.xyz/join/devops-en

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Imagine if your social media account was hosted in a git repository. You could choose to use a site like Github, but could also easily move to others like Gitlab or Bitbucket. This is essentially how Bluesky's AT Protocol handles user data.

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A social networking technology created by Bluesky.

Oct 20, 2022

Join the waitlist to try the beta before it's publicly available

bsky.app

Bluesky Social

See what's next.

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It’s clear there’s a lot of interest in a new approach to social media. We’ll be rolling out invites to the private beta in stages, making sure the protocol scales and taking user feedback as we go.

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Wow. 30k signups for our app’s waiting list in the last two days! Thanks for the overwhelming interest, we’ll do our best to get you in soon. 🔜

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Federated social, portable accounts, algorithmic choice (!!). Developers:

atproto.com

Docs | AT Protocol

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We pushed a temporary fix and then switched mailing list providers, so signups on bsky.app are working again. Thanks for your interest! Excited to share more soon 🎉

bsky.app

Bluesky Social

See what's next.

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Looks like we've reached a temporary limit on mailing list signups right now -

@SendGridSupport

@SendGrid

we need up upgrade our plan and your site is not allowing it

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foundational,

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A social networking technology created by Bluesky.

And if you’re interested in joining the team, we’re hiring a mobile developer! blueskyweb.xyz/join/software-

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The World-Wide Web wouldn’t have been much fun if it was created without a browser, and the same is true of the AT Protocol. So we’re also building a Bluesky social app. Join the waitlist at

bsky.app

Bluesky Social

See what's next.

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Learn more on the AT Protocol website. You’ll find a few “TODOs” in the specs, but the technology is stable enough that we can start to communicate what we’re doing now.

atproto.com

The AT Protocol

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🔶 Performance Many novel protocols don't prioritize performance, resulting in long loading times before you can see your timeline. We don’t see performance as optional, so we’ve made it a priority to build for fast loading at large scales.

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🔶 Interoperation The world needs a diverse market of connected services to ensure healthy competition. The AT Protocol includes a schema-based interoperation framework called Lexicon to help solve coordination challenges.

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🔶 Algorithmic choice Algorithms dictate what we see and who we can reach. We must have control over our algorithms if we're going to put trust in our online spaces. The AT Protocol supports open algorithms so users have more control over their experience.

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🔶 Account portability A person’s online identity should not be owned by corporations with no accountability to their users. With the AT Protocol, you can move your account from one provider to another without losing any of your data or social graph.

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What makes the AT Protocol unique: 🔶 Account portability 🔶 Algorithmic choice 🔶 Interoperation 🔶 Performance

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What’s a “federated” network? It’s a way for servers to communicate with each other – like email. Instead of one site running the network, you can have many sites. Users get a choice of provider, and individuals and businesses can self-host if they want.

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The AT Protocol is a new federated social network. It integrates ideas from the latest decentralized technologies into a simple, fast, and open network.

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AT Protocol

Hello world! atproto.com

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Are you a React Native expert? Have you written multiple mobile apps? Are you confident building animations, gestures, UI state managers, and everything in between? Then we want to hire you! Come help us build the future of social: blueskyweb.org/join/software-