Introducing relaykit

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

Quickstart guide | API reference | View tutorials

Get started

Install the latest version in seconds:

cargo add org-relaykit

Version 3.8.2 · Last updated 2026-06-12 · 3,639 downloads

Quick reference

• Dead-letter queue and error recovery
• Writing custom transformation plugins
• Streaming data from Kafka in under a minute
• Writing integration tests

Why relaykit

• Built-in batching, retry logic, and circuit breakers.
• Live metrics, tracing, and dead-letter queues.
• Full type safety with zero runtime overhead.
• Zero dependencies; under 50 KB gzipped.

Community

Join 6,634 developers using relaykit in production. Report bugs and feature requests on GitHub. Ask questions in our Discord community. Follow @relaykit on Twitter for updates.

GitHub · Discord · Status