Awesome MCP › Software Development

pottekkat/sandbox-mcp

⭐ 121 Go repository created 2025-04-21

Sandbox MCP is a Model Context Protocol server written in Go that gives MCP hosts and clients a way to execute code in secure, isolated Docker containers. It addresses the gap where a model can write code but cannot run it, which otherwise pushes untested output onto the user machine; giving the model an execution environment lets it test and correct its own code in fewer iterations. The project draws on Codapi, and several bundled sandboxes are the same as the Codapi ones. The shipped sandboxes cover a lightweight shell environment without network access, Python, Rust, Go with network access, JavaScript on Node.js, Java including preview features, a network-tools image for connectivity diagnostics and endpoint testing, and an Apache APISIX instance configured through a YAML file and driven with curl from a main.sh script. Each sandbox is simply a Dockerfile plus a JSON configuration, so users can add their own under the sandbox-mcp directory in the XDG configuration home, following the examples and guide in the repository. Setup is two commands: a pull that creates the configuration directory and fetches the default sandboxes from GitHub, and a build that builds their Docker images; Docker must be installed and running. The binary is available from the releases page for the usual operating systems and architectures, through go install with Go 1.24 or newer, or built from source with make. Clients register it as a command with a --stdio argument, documented for both the Claude Desktop configuration file and the Cursor mcp.json. Listed use cases include safe execution of untrusted code, automated testing and validation, checking user submitted scripts, network troubleshooting, teaching and interview exercises, and automated code review. The project is MIT licensed.

https://github.com/pottekkat/sandbox-mcp

mcp-servergodockersandboxcode-executionsecurityisolation