NSQ is a realtime distributed messaging platform implemented in Go that provides fault-tolerant queues without a single global broker dependency. The project site documents topology, client libraries, and operational patterns for decoupling microservices with at-least-once delivery semantics.
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NSQ pricing questions
Is NSQ free?
Yes. NSQ has an ongoing free plan. NSQ is open-source messaging software distributed via the project site and repositories without a commercial license fee listed on the homepage.
How much does NSQ cost?
NSQ is listed as free. No paid plan with a published price was found.