Welcome to relaykit

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

View documentation | Method reference | See examples

Installation

Install the latest version in seconds:

curl -sSL https://install.example.com | sh

Version 3.8.2 · Last updated 2026-06-12 · 9,253 downloads

Quick reference

• Streaming data from Kafka in under a minute
• Streaming data from Kafka in under a minute
• Rate limiting and backpressure patterns
• Rate limiting and backpressure patterns

Features

• Built-in batching, retry logic, and circuit breakers.
• Full type safety with zero runtime overhead.
• Full type safety with zero runtime overhead.
• Live metrics, tracing, and dead-letter queues.

Community

Join 4,379 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