







Cap’n Proto is an insanely fast data interchange format and capability-based RPC system. Think JSON, except binary. Or think Protocol Buffers, except faster. In fact, in benchmarks, Cap’n Proto is INFINITY TIMES faster than Protocol Buffers.
Cap'n Web: A new RPC system for browsers and web servers
Cap'n Web is a new open source, JavaScript-native RPC protocol for use in browsers and web servers. It provides the expressive power of Cap'n Proto, but with no schemas and no boilerplate.

Protocol Buffers - OpenStreetMap Wiki
Protocol Buffers (Protobuf) is a data format developed by Google as a more efficient alternative to XML.
Protocol Buffers
Protocol Buffers are language-neutral, platform-neutral extensible mechanisms for serializing structured data.
How Meshtastic Data works Protocol Buffers (protobufs)

Zero-copy Protobuf and ConnectRPC for Rust
As part of my work at Anthropic, I open sourced two Rust crates that fill a gap in the RPC ecosystem: buffa, a pure-Rust Protocol Buffers…
724: Ask Dan Abramov Anything About AT Proto
If you’re like Chris and understand a bit of the tech behind AT Proto but want to understand it at a deeper level, this episode is for you. How does it differ from straight up RSS and Mastodo…


Comparing gRPC performance across different technologies
gRPC is an open-source Remote Procedure Call system focusing on high performance. There exist several gRPC benchmarks including an official one, yet we still wanted to create our own.
Capability Trees: A Protocol-Level Extension of Object Capabilities, Draft 2
This draft addresses questions and feedback from the ATProto community, in particular from Zicklag (@zicklag.dev) and Brooklyn Zelenka (@expede.wtf). Draft 1 remains available for transparency.
I haven't made anything with AT Proto yet
This is the blog post I write before I actually build anything on AT Proto

Protocol Reader - Summer of Protocols
The Protocol Reader The Protocol Reader is an 358-page book (currently only available as an epub) comprising 26 foundational essays by 31 authors from the Summer of Protocols program, carefully edited and sequenced to introduce you to the fascinating new discipline of Protocol Studies. It can serve as

Protobase
Managed AT Protocol PDS infrastructure for your brand. Give your users a home on the Atmosphere — we handle the heavy lifting.

apple/swift-nio
Event-driven network application framework for high performance protocol servers & clients, non-blocking.
Integrating gRPC with the Homa Transport Protocol - John Ousterhout, Stanford University