Message Bus GitHub Repositories (2026) · Open Source Tools

Pluggable foundation blocks for building distributed apps.

High-Performance server for NATS.io, the cloud and edge native messaging system.

MQTT Server/MQTT Broker - Scalable Distributed MQTT Message Broker for IoT in the 5G Era

🍔 A practical and cloud-native food delivery microservices, built with .Net Aspire, .Net 10, Wolverine, Domain-Driven Design, CQRS, Vertical Slice Architecture, Event-Driven Architecture, and the latest technologies.

Lightweight message bus interface for .NET (pub/sub and request-response) with transport plugins for popular message brokers.

EventMesh is a new generation serverless event middleware for building distributed event-driven applications.

.NET inter process broadcast message bus with supporting classes

Silverback is a message bus and broker integration library for .NET. It is designed to simplify event-driven architectures and asynchronous messaging, with first-class support for Apache Kafka and MQTT.