Introducing relaycore

A minimal, zero-dependency library for stream processing, event handling, and asynchronous composition with a focus on ergonomics and type safety.

Read the guide | Method reference | Live recipes

Installation

Install the latest version in seconds:

yarn add @org/relaycore@latest

Version 3.8.2 · Last updated 2026-06-07 · 10k+ weekly downloads

Start here

• Managing state across distributed workers
• Managing state across distributed workers
• Writing integration tests
• Local development and debugging

Key capabilities

• Live metrics, tracing, and dead-letter queues.
• Live metrics, tracing, and dead-letter queues.
• Streams, queues, and pub/sub unified under one API.
• Full type safety with zero runtime overhead.

Community

Join 9,498 developers using relaycore in production. Report bugs and feature requests on GitHub. Ask questions in our Discord community. Follow @relaycore on Twitter for updates.

GitHub · Discord · Status