Welcome to relaycore

relaycore is a high-performance type-safe SDK for building real-time data pipelines and reactive applications.

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Setup

Install the latest version in seconds:

yarn add @org/relaycore@latest

Version 3.8.2 · Last updated 2026-05-28 · 10k+ weekly downloads

Quick reference

• Building an event-driven microservice
• Building your first real-time dashboard
• Managing state across distributed workers
• Rate limiting and backpressure patterns

Why relaycore

• Live metrics, tracing, and dead-letter queues.
• Zero dependencies; under 50 KB gzipped.
• Live metrics, tracing, and dead-letter queues.
• Works with Kafka, RabbitMQ, Redis, SQS, and webhooks.

Community

Join 2,527 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