Mirror of Apache Qpid Proton

Clone this repo:
  1. 1ad098c Replace jaeger exporter with otlp exporter by Rakhi Kumari · 4 weeks ago main
  2. e637082 PROTON-2736: tls library - stay in decrypt loop long enough to finalize reads and state vars by Cliff Jansen · 2 weeks ago
  3. 939a48f PROTON-2736: tls library - catch unblocking of decrypt stream for processed non-application records by Cliff Jansen · 2 weeks ago
  4. a60ca6e PROTON-2716: replace `include_directories()` call with opentelemetry-cpp provided targets (#394) by Jiri Daněk · 6 weeks ago
  5. e744d77 PROTON-2715: remove unused for-cycle counter variable (#395) by Jiri Daněk · 6 weeks ago

Qpid Proton - AMQP messaging toolkit

Qpid Proton is a high-performance, lightweight messaging library. It can be used in the widest range of messaging applications, including brokers, client libraries, routers, bridges, proxies, and more. Proton makes it trivial to integrate with the AMQP 1.0 ecosystem from any platform, environment, or language.


  • A flexible and capable reactive messaging API
  • Full control of AMQP 1.0 protocol semantics
  • Portable C implementation with bindings to popular languages
  • Peer-to-peer and brokered messaging
  • Secure communication via SSL/TLS and SASL

Universal - Proton is designed to scale both up and down. Equally suitable for simple clients or high-powered servers, it can be deployed in simple peer-to-peer configurations or as part of a global federated messaging network.

Embeddable - Proton is carefully written to be portable and cross platform. It has minimal dependencies, and it is architected to be usable with any threading model, as well as with non-threaded applications. These features make it uniquely suited for embedding messaging capabilities into existing software.

Standard - Built around the AMQP 1.0 messaging standard, Proton is not only ideal for building out your own messaging applications but also for connecting them to the broader ecosystem of AMQP 1.0-based messaging applications.

Please see https://qpid.apache.org/proton for more information.

Getting Started

See the included INSTALL.md file for build and install instructions and the developers.md file for information on how to modify and test the library code itself.