Apache RocketMQ
7.5#2 in event streaming platformsFree planFree planAPILinuxmacOSSelf-hosted
VisitNo prices published.
Apache RocketMQ suits developers and operators building asynchronous messaging between services, particularly when they need options such as transactional messages or FIFO ordering. It is for teams prepared to deploy and configure self-hosted middleware.
You want what its maker publishes above — check its page for the details.