Streamsy is a toolkit for working with Durable Streams.
Durable Streams are the data primitive for the agent loop.
Persistent, addressable, real‑time streams for building resilient agent sessions and collaborative multi-user, multi-agent systems.
Streamsy provides a server implementation of the Durable Streams protocol with:
- support for any runtime/framework that supports Web Standards
fetch - pluggable storage backends with in-memory, SQLite, and Durable Object implementations
- TypeScript interfaces for direct protocol access, including support for JSON mode with typed codecs and Standard Schema support
MIT