ELI5: atproto

high confidence

March 31, 2026

// explanation

// eli5AT Protocol is like a rulebook for how different social media apps can talk to each other and share information. Instead of each app keeping all your posts locked up on their own computers, AT Protocol lets you own your posts and takes like they're in a shared library that many apps can read from. It's like instead of having your toys scattered at different friends' houses, you keep them in one place and friends can come visit and see them [1][3][4].

// sources

[1]AT Protocol

We're @atproto.com! LEARN MORE · Login with user-owned identities. We're @atproto.com! It's just JSON. The AT Protocol is a data network. Posts, likes, follows ...

[2]AT Protocol - Wikipedia

The AT Protocol (Authenticated Transfer Protocol, pronounced "at protocol", commonly shortened to ATproto or "ATP") is a protocol and set of open ...

[3]GitHub - bluesky-social/atproto

The Authenticated Transfer Protocol ("ATP" or "atproto") is a decentralized social media protocol, developed by Bluesky Social PBC. Learn more at:.

[4]Protocol Overview

The Authenticated Transfer Protocol, aka atproto, is a decentralized protocol for large-scale social web applications.

[5]You can just hack on ATProto | Vicki Boykis

Jan 23, 2025 ... ATProto. Bluesky is both a decentralized protocol, called AtProto and a social media company, called Bluesky plc that develops both the protocol ...

[6]AT Protocol Explainedvideo

Video by StackWild

[7]ActivityPub vs AT Protocolvideo

Video by Justin Garrison

[8]ATProto Ethos Daniel Holmgren AtmosphereConf Seattle 2025video

Video by AT Protocol Development, Tech Talks, and Events

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