Welcome to querykit

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 | Live recipes

Setup

Install the latest version in seconds:

docker pull ghcr.io/org/querykit:latest

Version 3.8.2 · Last updated 2026-06-05 · 7,609 downloads

Quick reference

• Writing custom transformation plugins
• Deploying with Docker and Kubernetes
• Deploying to production safely
• Handling errors and retries like a pro

Features

• Live metrics, tracing, and dead-letter queues.
• Works with Kafka, RabbitMQ, Redis, SQS, and webhooks.
• Built-in batching, retry logic, and circuit breakers.
• Works with Kafka, RabbitMQ, Redis, SQS, and webhooks.

Community

Join 5,392 developers using querykit in production. Report bugs and feature requests on GitHub. Ask questions in our Discord community. Follow @querykit on Twitter for updates.

GitHub · Discord · Status