NATS MCP Server
About
MCP server for NATS messaging system using NATS CLI - enabling AI agents to interact with NATS messaging
Details
- Author
- bmorphism
- Downloads
- 376
- Categories
- Other, Communication, AI
Jump to
- Publish messages with headers, templates, and reply subjects
- Subscribe to subjects with configurable timeouts and message counts
- Request-reply pattern support with optional headers
- Go template functions for dynamic message content
- Full NATS CLI integration and robust error handling
Setting up with Highlight
This MCP is not yet compatible with Highlight’s one-click setup. However, you can still use it with Highlight by following these steps:
- Download and install Highlight from highlightai.com/download
- Navigate to the plugins tab and select "Add Custom Plugin"
-
Configure the plugin with the settings below
Plugin Name
NATS MCP ServerCommand (node, npx, python, etc.)Please refer to the README for specific instructions on how to obtain API keys or other required environment variables.
- Enable "Start Automatically" if you want the plugin to start when Highlight launches
From the repository
Install via npm (npm install @modelcontextprotocol/nats-mcp-server) or build from source. Configure with the NATS_URL environment variable (default nats://localhost:4222). Add the server to your MCP client’s configuration (e.g., Cline or Claude Desktop) and then invoke its tools: publish, subscribe, or request.
Claude Desktop / Cursor
Paste into your MCP client config file to install this server.
{
"mcpServers": {
"nats mcp server": {
"nats": {
"command": "node",
"args": [
"/path/to/nats-mcp-server/build/index.js"
],
"env": {
"NATS_URL": "nats://localhost:4222"
}
}
}
}
}McpServers
{
"nats": {
"command": "node",
"args": [
"/path/to/nats-mcp-server/build/index.js"
],
"env": {
"NATS_URL": "nats://localhost:4222"
}
}
}NATS MCP Server
An MCP (Model Context Protocol) server that provides access to NATS, a cloud native messaging system, through the NATS CLI.
Features
- Publish messages with advanced options (headers, templates, reply subjects)
- Subscribe to subjects with configurable timeouts and message counts
- Request-reply pattern support with headers
- Full NATS CLI integration
- Error handling and cleanup
Requirements
- Node.js >= 14.0.0
- NATS CLI (nats)
Installing NATS CLI
macOS
Using Homebrew:
brew tap nats-io/nats-tools
brew install nats-io/nats-tools/nats
Linux
Using snap:
snap install nats
Using apt (Debian/Ubuntu):
```bash
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