execbox

Portable code execution for Model Context Protocol tools and wrapped MCP servers.

Execbox turns host tool catalogs into callable guest namespaces, supports MCP wrapping on both sides of the boundary, and lets you place guest JavaScript where it fits your deployment: in-process, in a worker, in a child process, or behind your own remote transport.

Package Map

Package	npm	What it is for
@execbox/core		Core execution contract, provider resolution, and MCP adapters
@execbox/protocol		Transport-safe messages and shared host-session helpers
@execbox/quickjs		QuickJS backend for execbox
@execbox/remote		Transport-backed remote executor
@execbox/process		Child-process QuickJS executor
@execbox/worker		Worker-thread QuickJS executor
@execbox/isolated-vm		isolated-vm backend for execbox

Examples

Runnable examples live in examples/ and are indexed in examples/README.md.

Docs

• Public Docs
• Getting Started Guide
• Execbox Architecture Overview