Code Runner MCP Server

@formulahendry

代码仓库主页

基本信息

分类

开发工具

许可证

MIT

传输方式

stdio

作者

formulahendry

关于 Code Runner MCP Server

Code Runner MCP Server

Code Runner MCP Server 配置

使用下面的配置,将此服务器添加到你的 MCP 客户端。

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

Code Runner MCP Server 工具

Run code snippet and return the result.

概览

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

常见问题

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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