1.rabbitmq / rabbitmq-serverOpen source RabbitMQ: core server and tier 1 (built-in) pluginsrabbitmqamqpmessagingamqp-0-9-1amqp1-0mqtt+4 moreJavaScriptOther license14K total4K forks+394 starsfrom 13,558 · score 5.98
2.asyncapi / specThe AsyncAPI specification allows you to create machine-readable definitions of your asynchronous APIs.asyncapireactivespecificationwebsocketsamqpmqtt+2 moreJavaScriptAPACHE-2.05.3K total383 forks+187 starsfrom 5,146 · score 5.24