Openrpc

🚀 OpenRPC MCP Server

An MCP (Model Context Protocol) server that provides JSON-RPC functionality via OpenRPC.

https://github.com/user-attachments/assets/3447175a-f921-4ded-8250-b611edb2fb67

✨ Features

Tools

• rpc_call - Invoke any JSON-RPC method.
  • Specify the server URL, method name, and parameters.
  • Return the result in JSON format.
• rpc_discover - Discover available JSON-RPC methods.
  • Use the rpc.discover specification of OpenRPC.
  • List all methods on the specified server.

🚀 Quick Start

Development

Install dependencies:

npm install

Build the server:

npm run build

Develop with automatic rebuild:

npm run watch

📦 Installation

To use with Claude Desktop, add the server to the configuration:

• On MacOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• On Windows: %APPDATA%/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "openrpc": {
      "command": "npx",
      "args": ["-y", "openrpc-mcp-server"]
    }
  }
}

Debugging

Since the MCP server communicates via stdio, debugging can be challenging. We recommend using MCP Inspector:

npm run inspector

The Inspector will provide a URL to access the debugging tools in the browser.