NATS

The connectivity and data layer for distributed systems.

NATS is high-performance, lightweight, open-source infrastructure for modern distributed systems, cloud to edge, and agentic AI.

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Services, devices and AI agents connect to one NATS system. It provides messaging, where one message fans out to every subscriber; streaming, where messages append to a log that a consumer reads through; key-value and object storage, where a key's value updates and its revision increases; and services, where requests are balanced across instances. It runs at the edge, in clusters and across clouds, with accounts isolating tenants.servicesdevicesAI agentsone NATS systemMessagingpub/sub, request/reply, queuesStreaming (JetStream)durable streams, replayKey-value and object storebuckets built on streamsServicesdiscovery, stats, balancingconfig30rev 3edgeclustersmulti-cloudMulti-tenancyisolated accounts, decentralized JWT
  • 6K+ contributors
  • 2K+ companies
  • 11K+ Slack members
  • 21K+ GitHub stars
  • 400M+ downloads
Cloud Native Computing FoundationCloud Native Computing FoundationGraduated Project

What is NATS

Why it's different

Built on intentional design choices: location independence, many-to-many communication, and an async-first model.

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Where it runs

Anywhere systems are distributed. Leaf nodes and superclusters add clouds, regions, or edge locations without downtime or redesign.

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What you get

A single connective fabric that stays simple as systems scale, with official clients for 10+ languages and 30+ more from the community.

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How NATS works → Concepts in the docs →

Powering Industry Leaders

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