NATS MCP Server

by bmorphism

The NATS MCP Server provides access to the NATS messaging system through the Model Context Protocol. It allows users to publish, subscribe, and request-reply with NATS using the NATS CLI.

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What is NATS MCP Server?

The NATS MCP Server is a server that enables interaction with a NATS messaging system using the Model Context Protocol (MCP). It leverages the NATS CLI to provide a set of tools for publishing, subscribing, and performing request-reply operations with NATS.

How to use NATS MCP Server?

First, install the NATS CLI and Node.js. Then, install the server using npm or by cloning the repository and building from source. Configure the server with the NATS URL. Finally, add the server to your MCP configuration (Cline or Claude Desktop) and use the provided tools (publish, subscribe, request) with the specified parameters.

Key features of NATS MCP Server

Publish messages with advanced options
Subscribe to subjects with configurable timeouts and message counts
Request-reply pattern support with headers
Full NATS CLI integration

Use cases of NATS MCP Server

Publishing events to a NATS topic
Subscribing to a NATS topic to consume messages
Implementing request-reply services using NATS
Integrating NATS messaging with MCP-compatible tools like Cline and Claude Desktop

FAQ from NATS MCP Server

What is NATS?

NATS is a cloud native messaging system.

What is MCP?

MCP stands for Model Context Protocol.

How do I install the NATS CLI?

Instructions for installing the NATS CLI are provided in the README for various operating systems (macOS, Linux, Windows).

How do I configure the NATS MCP Server?

The server can be configured using environment variables, specifically the NATS_URL variable.

What template functions are available?

When using templates, the following functions are available: Count, TimeStamp, Unix, UnixNano, Time, ID, and Random(min, max).