NATS
The real-time communication fabric for distributed agents and applications.
NATS is an open-source, high-performance messaging system for building distributed applications across clouds and user-defined edge environments. It addresses the need for a lightweight, single-binary communication layer that supports pub/sub, request/reply, queueing, and streaming with persistence through JetStream, while maintaining low resource usage and sub-millisecond latency.
Core capabilities include subject-based routing, key-value storage, object storage, leaf nodes, and superclusters for evolving topologies across regions and edge locations. Official clients are available for Go, Rust, JavaScript (Node and Web), TypeScript (Deno), Python, Java, C#, C, Ruby, Elixir, and a CLI, alongside community-contributed clients. The server and clients are open source under the Apache 2.0 license.
NATS is intended for teams building distributed systems, including resource-constrained edge devices, vehicle fleets, and cloud deployments. It is packaged as open-source software with no stated pricing, editions, or usage-based plans on the provided pages.
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