Massient, Inc. is now behind MassTransit! Preview the new documentation at https://masstransit.massient.com/

Enterprise Messaging for .NET

MassTransit is the trusted messaging framework powering mission-critical applications in industries like finance, logistics, government, retail, IoT, and more. Built for scale, security, and reliability, MassTransit helps teams build fast, fault-tolerant, and future-proof distributed applications. Whether you're a CTO evaluating architecture options or a developer creating your first message consumer, MassTransit gives you everything you need.

  • Battle-Tested – Powering production workloads across finance, logistics, government, and more.
  • Multi-Broker Support – Unified abstraction over RabbitMQ, Azure Service Bus, Amazon SQS, and SQL Transport.
  • Commercial Licensing – MassTransit v9 is a commercial product with full support via Massient.
  • Complete Framework – Not just transport abstraction, but a full framework for sagas, routing slips, and fault-tolerant workflows.
  • Cloud-Native Ready – Seamlessly deploy across Kubernetes, serverless, hybrid, and multi-cloud environments.
Bash
$dotnet add package MassTransit
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Why MassTransit?

Durable Messaging

  • Reliable message delivery with retries, redelivery, and outbox patterns.
  • Dead letter queues and error handling built in.
  • Transactional messaging ensures data consistency.

Loosely Coupled Services

  • Publish/subscribe patterns that decouple producers from consumers.
  • Message contracts define boundaries, not implementations.
  • Evolve your system without breaking existing consumers.

Workflow Orchestration

  • Saga state machines manage complex multi-step workflows.
  • Routing slips orchestrate distributed business processes.
  • Build resilient, long-running processes with built-in persistence.