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openrpc-mpc-server

by shanejonas
npmGitHub
JavaScript
Apache 2.0
7
33
  • Apple
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OpenRPC MCP Server

A Model Context Protocol (MCP) server that provides JSON-RPC functionality through OpenRPC.

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

Features

Tools

  • rpc_call - Call arbitrary JSON-RPC methods
    • Specify server URL, method name, and parameters
    • Returns JSON-formatted results
  • rpc_discover - Discover available JSON-RPC methods
    • Uses OpenRPC's rpc.discover specification
    • Lists all methods on a given server

Development

Install dependencies:

npm install

Build the server:

npm run build

For development with auto-rebuild:

npm run watch

Installation

To use with Claude Desktop, add the server config:

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 MCP servers communicate over stdio, debugging can be challenging. We recommend using the MCP Inspector:

npm run inspector

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

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A
security – no known vulnerabilities
A
license - permissive license
A
quality - confirmed to work

remote-capable server

The server can be hosted and run remotely because it primarily relies on remote services or has no dependency on the local environment.

Tools

A Model Context Protocol (MCP) server that provides JSON-RPC functionality through OpenRPC.

  1. Features
    1. Tools
  2. Development
    1. Installation
      1. Debugging

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