NATS Message Broker Client — A high-performance messaging plugin for Unreal Engine with native support for Core NATS and JetStream (5.7+).

Seamlessly integrate real-time asynchronous messaging into your projects:

Core NATS: Publish/Subscribe, Request/Reply, subject wildcards, message headers, deduplication (Nats-Msg-Id), etc.

JetStream: Persistent streams, consumer management, guaranteed message delivery, acknowledgments, distributed key-value store with watch capabilities.

Simple to Use:

- NatsClientSubsystem for global access across your project, or NatsClientComponent for per-Actor messaging

- Full Blueprint and C++ support

- Multiple authentication methods (None, Basic, Token, JWT)

- Automatic reconnection on connection loss

No external dependencies. Production-ready. Perfect for multiplayer games, real-time chat systems, and distributed architectures.