Code Runner▌
by formulahendry
Run Python code online or compile Java programs easily with Code Runner. Test code in 30+ languages instantly in your br
Executes code snippets in over 30 programming languages by creating temporary files and running them with appropriate interpreters, enabling direct testing and demonstration within conversations.
best for
- / Testing code snippets during development
- / Demonstrating programming concepts in conversations
- / Quick prototyping across multiple languages
- / Educational programming assistance
capabilities
- / Execute JavaScript, Python, and TypeScript code
- / Run shell scripts and PowerShell commands
- / Test Swift, Kotlin, and Dart snippets
- / Execute functional languages like Haskell and Clojure
- / Run Ruby, PHP, and Perl scripts
- / Test Go, Rust, and C# code
what it does
Executes code snippets in over 30 programming languages by creating temporary files and running them with appropriate interpreters. Returns the execution results directly in your conversation.
about
Code Runner is a community-built MCP server published by formulahendry that provides AI assistants with tools and capabilities via the Model Context Protocol. Run Python code online or compile Java programs easily with Code Runner. Test code in 30+ languages instantly in your br It is categorized under developer tools. This server exposes 1 tool that AI clients can invoke during conversations and coding sessions.
how to install
You can install Code Runner in your AI client of choice. Use the install panel on this page to get one-click setup for Cursor, Claude Desktop, VS Code, and other MCP-compatible clients. This server runs locally on your machine via the stdio transport. This server supports remote connections over HTTP, so no local installation is required.
license
MIT
Code Runner is released under the MIT license. This is a permissive open-source license, meaning you can freely use, modify, and distribute the software.
readme
Run Python code online or compile Java programs easily with Code Runner. Test code in 30+ languages instantly in your br
TL;DR: Executes code snippets in over 30 programming languages by creating temporary files and running them with appropriate interpreters. Returns the execution results directly in your conversation.
What it does
- Execute JavaScript, Python, and TypeScript code
- Run shell scripts and PowerShell commands
- Test Swift, Kotlin, and Dart snippets
- Execute functional languages like Haskell and Clojure
- Run Ruby, PHP, and Perl scripts
- Test Go, Rust, and C# code
Best for
- Testing code snippets during development
- Demonstrating programming concepts in conversations
- Quick prototyping across multiple languages
- Educational programming assistance
Highlights
- 30+ programming languages supported
- No external API dependencies
FAQ
- What is the Code Runner MCP server?
- Code Runner is a Model Context Protocol (MCP) server profile on explainx.ai. MCP lets AI hosts (e.g. Claude Desktop, Cursor) call tools and resources through a standard interface; this page summarizes categories, install hints, and community ratings.
- How do MCP servers relate to agent skills?
- Skills are reusable instruction packages (often SKILL.md); MCP servers expose live capabilities. Teams frequently combine both—skills for workflows, MCP for APIs and data. See explainx.ai/skills and explainx.ai/mcp-servers for parallel directories.
- How are reviews shown for Code Runner?
- This profile displays 10 aggregated ratings (sample rows for discoverability plus signed-in user reviews). Average score is about 4.5 out of 5—verify behavior in your own environment before production use.
Ratings
4.5★★★★★10 reviews- ★★★★★Shikha Mishra· Oct 10, 2024
Code Runner is among the better-indexed MCP projects we tried; the explainx.ai summary tracks the official description.
- ★★★★★Piyush G· Sep 9, 2024
We evaluated Code Runner against two servers with overlapping tools; this profile had the clearer scope statement.
- ★★★★★Chaitanya Patil· Aug 8, 2024
Useful MCP listing: Code Runner is the kind of server we cite when onboarding engineers to host + tool permissions.
- ★★★★★Sakshi Patil· Jul 7, 2024
Code Runner reduced integration guesswork — categories and install configs on the listing matched the upstream repo.
- ★★★★★Ganesh Mohane· Jun 6, 2024
I recommend Code Runner for teams standardizing on MCP; the explainx.ai page compares cleanly with sibling servers.
- ★★★★★Oshnikdeep· May 5, 2024
Strong directory entry: Code Runner surfaces stars and publisher context so we could sanity-check maintenance before adopting.
- ★★★★★Dhruvi Jain· Apr 4, 2024
Code Runner has been reliable for tool-calling workflows; the MCP profile page is a good permalink for internal docs.
- ★★★★★Rahul Santra· Mar 3, 2024
According to our notes, Code Runner benefits from clear Model Context Protocol framing — fewer ambiguous “AI plugin” claims.
- ★★★★★Pratham Ware· Feb 2, 2024
We wired Code Runner into a staging workspace; the listing’s GitHub and npm pointers saved time versus hunting across READMEs.
- ★★★★★Yash Thakker· Jan 1, 2024
Code Runner is a well-scoped MCP server in the explainx.ai directory — install snippets and categories matched our Claude Code setup.