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Messaging Service ("Marconi")

Marconi is a cloud messaging and notification service for developers building applications on top of OpenStack. The service features a web-friendly HTTP API, which developers can use to send messages between the various components of their SaaS and mobile applications, using a variety of communication patterns. Underlying the API is an efficient messaging engine designed with scalability and security in mind.

At first glance, Marconi's RESTful API may seem a bit out of the ordinary. Message brokers typically rely on a custom binary protocol and often assume a reliable, 1st-party network between server and client. However, many of today's developers prefer an HTTP-based API. They value the simplicity and transparency of the protocol, its firewall-friendly nature, and its huge ecosystem of tools, load balancers and proxies.

Marconi caters to developers looking for this type of experience.


The Marconi team hangs out in #openstack-marconi on Freenode, and we are always happy to hear your ideas and answer any questions you might have. If you run into a bug, please report it using our issue tracker.



  • Alejandro Cabrera. Rackspace Atlanta. Introducing Openstack Marconi. July 17, 2013. Youtube Speaker Deck
  • Flavio Percoco. EuroPython 2013. Marconi: Queuing and Notification Service for Openstack. July 2, 2013. YouTube
  • Kurt Griffiths, Allan Metts. Openstack Summit April 2013. Project Overview: OpenStack Queuing and Notification Service ("Marconi""). April 2013. YouTube
  • Kurt Griffiths, Flavio Percoco, Allan Metts. Openstack Summit November 2013. Openstack Queuing and Notification Service Marconi. November 2013. YouTube


User Guide

Please visit docs.openstack.org to read the Marconi User Guide for application developers and system administrators.

Contributor Guide

Getting Started

API Specs


Quality Engineering