Introducing relaykit

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

Read the guide | API reference | View tutorials

Installation

Install the latest version in seconds:

cargo add org-relaykit

Version 3.8.2 · Last updated 2026-05-27 · 9,573 downloads

Quick reference

• Building an event-driven microservice
• Deploying to production safely
• Handling errors and retries like a pro
• Scaling to millions of events per second

Features

• Full type safety with zero runtime overhead.
• Zero dependencies; under 50 KB gzipped.
• Works with Kafka, RabbitMQ, Redis, SQS, and webhooks.
• Works with Kafka, RabbitMQ, Redis, SQS, and webhooks.

Community

Join 147 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