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MassTransit

Messaging & Event Streaming
github.com/MassTransit/MassTransit

Distributed Application Framework for .NET

$ Commercial licence. v9 is a commercial release by Massient; v8 remains Apache-2.0 open source. Licensing changes often; verify on the project's site before adopting.

azure-service-busc-sharpdotnetmasstransitmessagingnugetrabbitmqsqs
GitHub ↗ NuGet: MassTransit ↗ Website ↗
GitHub stars
7,811
Forks
1,972
Open issues
1
NuGet downloads
257,528,794
latest 9.2.4
License
Apache-2.0
Language
C#
Last push
3 days ago
21 Oct 2026
Created
16 Jul 2010

README

View on GitHub ↗

MassTransit

MassTransit is a free, open-source distributed application framework for .NET. MassTransit makes it easy to create applications and services that leverage message-based, loosely-coupled asynchronous communication for higher availability, reliability, and scalability.

Mass Transit

MassTransit is Apache 2.0 licensed.

Documentation

Get started by reading through the documentation.

Build Status

Branch Status
master master
develop develop

MassTransit NuGet Packages

Package Name .NET .NET Standard .NET Framework
Main
MassTransit 8.0, 9.0 2.0 4.7.2
MassTransit.Abstractions 8.0, 9.0 2.0 4.7.2
MassTransit.Newtonsoft 8.0, 9.0 2.0 4.7.2
MassTransit.MessagePack 8.0, 9.0 2.0 4.7.2
Other
MassTransit.Analyzers 2.0
MassTransit.Templates
MassTransit.SignalR 8.0, 9.0 4.7.2
MassTransit.Interop.NServiceBus 8.0, 9.0 2.0 4.7.2
MassTransit.TestFramework 8.0, 9.0 2.0 4.7.2
Persistence
MassTransit.AmazonS3 8.0, 9.0 2.0 4.7.2
MassTransit.Azure.Cosmos 8.0, 9.0 2.0 4.7.2
MassTransit.Azure.Storage 8.0, 9.0 2.0 4.7.2
MassTransit.Azure.Table 8.0, 9.0 2.0 4.7.2
MassTransit.Dapper 8.0, 9.0 2.0 4.7.2
MassTransit.DynamoDb 8.0, 9.0 2.0 4.7.2
MassTransit.EntityFrameworkCore 8.0, 9.0
MassTransit.EntityFramework 2.1 4.7.2
MassTransit.Marten 8.0, 9.0
MassTransit.MongoDb 8.0, 9.0 2.1 4.7.2
MassTransit.NHibernate 8.0, 9.0 2.0 4.7.2
MassTransit.Redis 8.0, 9.0 2.0 4.7.2
Scheduling
MassTransit.Hangfire 8.0, 9.0 2.0 4.7.2
MassTransit.Quartz 8.0, 9.0 2.0 4.7.2
Transports
MassTransit.ActiveMQ 8.0, 9.0 2.0 4.7.2
MassTransit.AmazonSQS 8.0, 9.0 2.0 4.7.2
MassTransit.Azure.ServiceBus.Core 8.0, 9.0 2.0 4.7.2
MassTransit.RabbitMQ 8.0, 9.0 2.0 4.7.2
MassTransit.SqlTransport.PostgreSQL 8.0, 9.0 2.0 4.7.2
MassTransit.SqlTransport.SqlServer 8.0, 9.0 2.0 4.7.2
MassTransit.WebJobs.EventHubs 8.0, 9.0 2.0 4.7.2
MassTransit.WebJobs.ServiceBus 8.0, 9.0 2.0 4.7.2
Riders
MassTransit.Kafka 8.0, 9.0 2.0 4.7.2
MassTransit.EventHub 8.0, 9.0 2.0 4.7.2

Discord

Get help live at the MassTransit Discord server.

alt Join the conversation

GitHub Issues

Pay attention

Please do not open an issue on GitHub, unless you have spotted an actual bug in MassTransit.

Use GitHub Discussions to ask questions, bring up ideas, or other general items. Issues are not the place for questions, and will either be converted to a discussion or closed.

This policy is in place to avoid bugs being drowned out in a pile of sensible suggestions for future enhancements and calls for help from people who forget to check back if they get it and so on.

Building from Source

  1. Install the latest .NET 9 SDK
  2. Clone the source down to your machine
    git clone https://github.com/MassTransit/MassTransit.git
  3. Run dotnet build

Contributing

  1. Turn off autocrlf
    git config core.autocrlf false
  2. Hack!
  3. Make a pull request

REQUIREMENTS

  • .NET 9 SDK

CREDITS

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