// Run code in a sandbox
wasmtimev48.0.5
A lightweight WebAssembly runtime that is fast, secure, and standards-compliant
Open source Maintained For agents
IN ONE PARAGRAPH
wasmtime is A lightweight WebAssembly runtime that is fast, secure, and standards-compliant.
Good for: Developers who want their agent (Claude Code, Codex, Cursor…) to run code in a sandbox.
01How to start
- 1Read the official README for requirements and permissions.
- 2Install it as the official guide describes.
- 3Tell your agent the command exists (e.g. in AGENTS.md / CLAUDE.md) so it knows when to call it.
02Alternatives & comparison
Compare side by side → wasmer 🚀 Fast and lightweight sandboxes for your apps and AI agents ★ 21k firecracker Secure and fast microVMs for serverless computing. ★ 37k pyodide Pyodide is a Python distribution for the browser and Node.js based on WebAssembly ★ 15k gvisor Application Kernel for Containers ★ 20k sandbox All-in-One Sandbox for AI Agents that combines Browser, Shell, File, MCP and VSCode Server in a single Docker container. ★ 6.2k
03Related
- ›BlueDot Impact AI Alignment 课程 · BlueDot ImpactEnglish
- ›BlueDot Impact AI Governance 课程 · BlueDot ImpactEnglish
- ›AI Safety, Ethics and Society 教材 · Center for AI Safety / Dan HendrycksEnglish
- ›OWASP Top 10 for LLM Applications · OWASP GenAI Security ProjectMultilingual (incl. EN/ZH)
- ›MITRE ATLAS · MITREEnglish
- All tutorials →