Apron Chat Protocol

Apron is a minimal JSON-based protocol for self-hosted chat, described as simple enough to write a server in about 100 lines while still supporting rooms, threads, bots, reactions and more. It runs over transports such as WebSocket, with a small core specification and optional incremental capabilities that have graceful fallbacks. The page points to a public demo server with restricted functionality, a web frontend that can connect to a user's own server, and example use cases including team chat and coding agents that stream terminal output into a thread using embed:stream.