RabbitMQ Has a Free API — The Message Broker Behind Billion-Message Systems

RabbitMQ is the most widely deployed open-source message broker — handling billions of messages daily for companies like Bloomberg, VMware, and Goldman Sachs. And its API is completely free. Why RabbitMQ? Battle-tested — 15+ years in production at massive scale Multi-protocol — AMQP, MQTT, STOMP, HTTP Flexible routing — direct, fanout, topic, headers exchanges Clustering — built-in high availability and replication Management UI — free web dashboard for monitoring Plugin ecosystem — 30+ official plugins Quick Start (Docker) # Start RabbitMQ with management UI docker run -d --name rabbitmq \ -p 5672:5672 \ -p 15672:15672 \ rabbitmq:3-management # Management UI: http://localhost:15672 # Default credentials: guest/guest Publisher (Send Messages) // publisher.js import amqp from " amqplib " ; const connection = await amqp . connect ( " amqp://localhost " ); const channel = await connection . createChannel (); const queue = " orders " ; await channel . assertQueue ( queue , { durable : true