E2B MCP
by E2B
Secure cloud sandboxes for AI code execution in JavaScript and Python
code Node.js Beginner
⭐ 381 stars 📅 Updated: 1mo ago
Description
MCP server that enables AI assistants to execute code in secure, isolated E2B cloud sandboxes. Supports JavaScript and Python with a simple interface for creating sandboxes, running code, and managing execution environments. Each sandbox runs in its own isolated container, ensuring that AI-generated code cannot affect the local system or other sandboxes. Ideal for scenarios where LLMs need to run untrusted code safely, such as data analysis, prototyping, or educational coding exercises.
✅ Best for
AI workflows that need safe, sandboxed code execution without local system risk
⏭️ Skip if
You need offline code execution or support for languages beyond JavaScript and Python
💡 Use cases
- Running AI-generated code safely without risking the local system
- Executing data analysis scripts in isolated Python sandboxes
- Prototyping JavaScript solutions in disposable cloud environments
- Teaching and learning scenarios where code execution must be sandboxed
👍 Pros
- ✓ Fully isolated cloud sandboxes eliminate local security risks
- ✓ Supports both JavaScript and Python out of the box
- ✓ Simple three-tool interface makes integration straightforward
- ✓ Free tier available for getting started quickly
👎 Cons
- ✗ Requires an API key and internet connection for all operations
- ✗ Limited to JavaScript and Python (no support for other languages)
- ✗ Cloud-dependent — no offline or local execution option
🔧 Exposed tools (3 tools)
| Tool | Category | Description |
|---|---|---|
| execute_code | code-execution | Execute JavaScript or Python code in an isolated cloud sandbox |
| create_sandbox | management | Create a new isolated sandbox environment |
| list_sandboxes | management | List all active sandbox environments |
⚡ Installation
Prerequisites:
- • Node.js v18+
- • E2B API key required (free tier available at e2b.dev)
- • API key required
Check Claude Code documentation to configure this MCP server.
💡 Tips & tricks
Sign up at e2b.dev to get a free API key. Use the Smithery CLI for quick setup: npx @smithery/cli install e2b --client claude. Sandboxes are ephemeral by default, so save any important outputs before the session ends.
Quick info
- Author
- E2B
- License
- Apache-2.0
- Runtime
- Node.js 18+
- Transport
- stdio
- Category
- code
- Difficulty
- Beginner
- Self-hostable
- ❌
- Auth
- —
- Docker
- —
- Version
- latest
- Updated
- Feb 28, 2026
Client compatibility
- ✅ Claude Code
- ✅ Cursor
- ❓ VS Code Copilot
- ❓ Gemini CLI
- ❓ Windsurf
- ❓ Cline
- ❓ JetBrains AI
- ❓ Warp
Platforms
🍎 macOS 🐧 Linux 🪟 Windows