Building on atproto

My notes from building apps on the atproto network.

by Tijs Teulings 🦑 @tijs.org

The Missing Piece: How Location Data is Coming to the AT Protocol

A deep dive into community-driven geolocation schemas, emerging projects, and the future of location-aware social networking on Bluesky

September 14, 2025

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OAuth for ATProto Apps Part 2: Mobile Implementation

Part 2 of a 2-part series on implementing OAuth authentication for ATProto (Bluesky) applications.

September 14, 2025

Building OAuth Authentication for ATProto apps: Part 1, the web use-case

In this follow-up OAuth implementation guide I dive a bit deeper into the actual implementation details of building authentication for your web or mobile app that builds on top of ATProto.

August 30, 2025

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Building OAuth Authentication for Bluesky: A Complete Guide for Web and iOS Apps

How to implement secure, standards-compliant OAuth 2.1 + PKCE authentication for AT Protocol apps with separate web and mobile flows

August 18, 2025

Building on atproto