MCP REST

MCP REST

Exposes a SSE MCP server as a rest endpoints for tools. Only for testing

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MCP REST

A REST API wrapper around the Model Context Protocol (MCP) client.

This is so you can play around with MCP without having to have a constant connection up and running.

Just for testing, not to use for real.

Installation

# Install globally
npm install -g mcp-rest

# Or use with npx
npx mcp-rest

Usage

npx mcp-rest [options]

Options

Option Description Default
-t, --type <type> Connection type: "sse" sse
-u, --url <url> SSE server URL (for sse type) http://localhost:8000/sse
-p, --port <port> Express server port 3000
-d, --debug Enable debug logging false
-h, --help Display help
-V, --version Display version

Examples

SSE Mode

# Connect to SSE server at default URL
npx mcp-rest

# Connect to custom SSE server and port
npx mcp-rest --type sse --url http://localhost:9000/sse --port 4000

API Endpoints

Endpoint Method Description
/status GET Check connection status
/tools GET List all available tools
/tools/:toolId POST Call a specific tool with arguments

Example API Usage

# Get connection status
curl http://localhost:3000/status

# List all available tools
curl http://localhost:3000/tools

# Call a tool
curl -X POST http://localhost:3000/tools/exampleTool \
  -H "Content-Type: application/json" \
  -d '{"arguments": {"param1": "value1"}}'

Troubleshooting

If you encounter connection issues:

  1. Use the --debug flag to see detailed logs
  2. Check the /status endpoint to verify connection status
  3. Ensure your MCP server/process is running and accessible

License

MIT

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