devcontainer-mcp server

devcontainer-mcp

Give your AI agent its own dev environment — not yours.

devcontainer-mcp is an MCP server that lets AI coding agents create, manage, and work inside dev containers across three backends: local Docker, DevPod, and GitHub Codespaces. The agent builds, tests, and ships code in an isolated container — your laptop stays clean.

Works with GitHub Copilot, Claude, Cursor, opencode, and any MCP-compatible client.

The Problem

When AI agents write code, they need to run it somewhere. Today that means your host machine:

• 🔴 Host contamination — agents install packages, modify PATH, leave behind build artifacts
• 🔴 "Works on my machine" — agents assume your local toolchain matches production
• 🔴 No isolation — one project's dependencies break another
• 🔴 Security risk — agents run arbitrary commands with your user privileges
• 🔴 Hardware constraints — you're limited to your local machine's resources

The Solution

The devcontainer spec already defines reproducible, container-based dev environments. Every major project ships a .devcontainer/devcontainer.json. But AI agents can't use them — until now.

devcontainer-mcp exposes 45 MCP tools that let any AI agent:

1. Spin up a dev container from any repo — locally, on a cloud VM, or in Codespaces
2. Run commands inside the container — builds, tests, linting, anything
3. Manage the lifecycle — stop, restart, delete when done
4. Authenticate against cloud providers — GitHub, AWS, Azure, GCP — without ever seeing a raw token

Agent: "Let me build this project..."
  → auth_status("github") → picks account
  → codespaces_create(auth: "github-you", repo: "your/repo")
  → codespaces_ssh(auth: "github-you", codespace: "...", command: "cargo build")
  → ✅ Built in the cloud. Your laptop did nothing.

Quick Install

Linux / macOS

curl -fsSL https://raw.githubusercontent.com/aniongithub/devcontainer-mcp/main/install.sh | bash

Windows (via WSL)

Invoke-RestMethod https://github.com/aniongithub/devcontainer-mcp/releases/latest/download/install.ps1 | Invoke-Expression

How it works: The binary runs inside WSL; MCP clients on Windows launch it via wsl ~/.local/bin/devcontainer-mcp serve. The stdio transport works transparently across the WSL boundary. WSL 2 is required — install it with wsl --install if you haven't already.

Backend CLIs (devpod, devcontainer, gh) are detected at runtime — if one is missing, the MCP server returns a helpful error with install instructions.

Binaries available for linux-x64, linux-arm64, darwin-x64, and darwin-arm64.

Host Protection & Opt-Out

The installer configures two agent hooks (Claude Code & GitHub Copilot CLI) that activate only in a directory containing .devcontainer/devcontainer.json:

Shortened. The full README is on GitHub.