Code Runner MCP Server

@formulahendry

リポジトリホームページ

基本情報

カテゴリ

開発者ツール

ライセンス

MIT

トランスポート

stdio

作者

formulahendry

Code Runner MCP Server について

Code Runner MCP Server

Code Runner MCP Server の設定

以下の設定を使って、このサーバーを MCP 対応クライアントに追加してください。

{
  "mcpServers": {
    "mcp-server-code-runner": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-server-code-runner@latest"
      ]
    }
  }
}

Code Runner MCP Server のツール

Run code snippet and return the result.

概要

What is Code Runner MCP Server?

Code Runner MCP Server is an MCP server that runs code snippets and displays the results. It supports multiple programming languages including JavaScript, Python, Ruby, Go, PHP, and many others. This server is for developers who want to execute code directly through MCP-compatible applications like VS Code or Claude Desktop.

How to use Code Runner MCP Server?

Install and configure the server via npx, Docker, or bunx in your MCP client's configuration file (e.g., settings.json for VS Code or claude_desktop_config.json for Claude Desktop). Ensure the interpreter or compiler for your desired language is set in the PATH environment variable, then use prompts like Run the JavaScript Code: console.log(5+6).

Key features of Code Runner MCP Server

Runs code snippets in 37+ programming languages
Supports setup via npx, Docker, or bunx
Offers Streamable HTTP Transport option
Returns execution output and results to the client
Works with VS Code, Claude Desktop, and other MCP hosts
Simple prompt-based usage with run-code tool

Use cases of Code Runner MCP Server

Execute ad-hoc code snippets without leaving your editor
Test small scripts or algorithms during development
Run system commands or retrieve OS information via code
Validate code logic before integrating into larger projects

よくある質問

What languages does Code Runner MCP Server support?

It supports JavaScript, PHP, Python, Perl, Perl 6, Ruby, Go, Lua, Groovy, PowerShell, BAT/CMD, BASH/SH, F# Script, C# Script, VBScript, TypeScript, CoffeeScript, Scala, Swift, Julia, Crystal, OCaml Script, R, AppleScript, Elixir, Clojure, Racket, Scheme, AutoHotkey, AutoIt, Kotlin Script, Dart, Haskell, Ni, Lisp, Kit, V, SCSS, and Sass. The full list is in the source constants file.

What are the runtime requirements?

The interpreter or compiler for each programming language you want to run must be installed and available in your system's `PATH` environment variable.

How can I run the server with HTTP instead of stdio?

Use the command `mcp-server-code-runner --transport http` after installing the package globally via `npm install -g mcp-server-code-runner@latest`.

What can I do if npx fails on Windows?

If npx fails to connect, try using `bunx` instead of `npx`, or wrap the `npx` command with `cmd` and `/c` in your configuration.

How do I install the server for use with Claude Desktop?

Add a `mcpServers` entry in your `claude_desktop_config.json` with `"command": "npx"` and `"args": ["-y", "mcp-server-code-runner@latest"]`.

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