CrateBay v0.9 Alpha

CrateBay

Local AI sandbox. Run code safely on your machine.

Give any AI agent a secure sandbox to execute code — locally, privately, for free. Works with Claude, Cursor, Windsurf, and any MCP-compatible client. No Docker required.

GitHub

AI Sandbox One-shot code execution

AI agents call sandbox_run_code via MCP — CrateBay handles container creation, code execution, and result delivery automatically.

Zero Config Built-in runtime, no Docker needed

Embedded VM runtime on every platform. Install CrateBay and run code immediately — macOS, Windows, and Linux.

MCP Native Works with any AI client

Connect Claude Desktop, Cursor, Windsurf, or any MCP client. Your AI gets 13 sandbox tools out of the box.

Why CrateBay

The local alternative to cloud sandboxes.

E2B and Modal charge per minute and send your code to the cloud. CrateBay runs everything locally — zero cost, full privacy, no limits.

Code Execution

Python, JavaScript, Bash, Rust — run any code in isolated sandboxes. Install packages, transfer files, stream output.

Privacy First

Code never leaves your machine. Runs inside a lightweight VM with hardware isolation. API keys encrypted at rest.

Cross-Platform

macOS (Virtualization.framework), Linux (KVM), Windows (WSL2). Built with Tauri v2 for native performance.

Open Source

MIT licensed. Free forever. Contribute features, add MCP tools, or self-host for your team.

Status

v0.9 — MCP Sandbox Ready

Core sandbox infrastructure complete. MCP Server with 13 tools, built-in runtime, offline image bundling. Working toward v1.0 with full GUI polish.