aid: masstransit
name: MassTransit
description: >-
  MassTransit is a free, open source distributed application framework for
  .NET that makes it easy to create applications and services that leverage
  message-based, loosely-coupled asynchronous communication for higher
  availability, reliability, and scalability.
type: Index
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/masstransit.png
tags:
  - .NET
  - Event-Driven
  - Message Bus
  - Messaging
  - Open Source
  - Sagas
url: >-
  https://raw.githubusercontent.com/api-evangelist/masstransit/refs/heads/main/apis.yml
created: '2026-03-26'
modified: '2026-04-28'
specificationVersion: '0.19'
apis:
  - aid: masstransit:masstransit-messaging
    name: MassTransit Messaging Framework
    description: >-
      MassTransit provides a consistent abstraction on top of message
      transports like RabbitMQ, Azure Service Bus, and Amazon SQS, with
      support for sagas, state machines, routing slip activities, and
      a standardized message envelope format.
    humanURL: https://masstransit.io/
    tags:
      - .NET
      - Event-Driven
      - Message Bus
      - Messaging
      - Sagas
    properties:
      - type: Documentation
        url: https://masstransit.io/documentation/concepts
      - type: JSONSchema
        url: json-schema/masstransit-message-envelope.json
      - type: JSONSchema
        url: json-schema/masstransit-saga-state.json
common:
  - type: DomainSecurity
    url: security/masstransit-domain-security.yml
  - type: Website
    url: https://masstransit.io/
  - type: Documentation
    url: https://masstransit.io/documentation/concepts
  - type: GettingStarted
    url: https://masstransit.io/quick-starts
  - type: GitHub
    url: https://github.com/MassTransit/MassTransit
  - type: Discord
    url: https://discord.gg/rNpQgYn
  - type: NuGet
    url: https://www.nuget.org/packages/MassTransit
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com