Open-source AI building blocks
Production-ready tools
for AI-powered apps.
Drop-in open-source projects for teams building AI copilots, autonomous agents, and interactive documentation. Install, configure, ship.
Products
Ship faster with less boilerplate
Each project is self-contained, well-tested, and designed to drop straight into production. Install from npm, wire up, and go.
React-EXE
Render React components from raw code strings in the browser. Ships with auto CDN dependency resolution, iframe sandboxing, Tailwind CSS, and multi-file support.
npm install react-exe- TypeScript & JSX out of the box
- Secure iframe sandbox mode
- Automatic CDN package resolution
- Multi-file component support
Slapify
AI-powered browser automation that slaps. Run autonomous agents, audit performance, and write E2E tests in plain English. Just give it a task and let it work.
npx slapify init- Autonomous task agents
- English-first .flow test files
- Built-in performance audits
- LLM-provider agnostic
agentpad
Run shell, Node, and Python against a real project directory with allowlists, timeouts, and structured output—built for AI agents and copilots. npm and PyPI (`pip install agentpad`).
npm install agentpad- Multi-language exec with cwd + env control
- Glob-based allowlists and timeouts
- Structured stdout/stderr and exit codes
- TypeScript and Python SDKs
stubfetch
Deterministic fake HTTP APIs and SQLite-backed stores so agent flows stay reproducible in CI. Stub routes, assert call history, reset between tests. npm and PyPI (`pip install stubfetch`).
npm install stubfetch- In-process HTTP server + fetch shim
- SQLite store with reset hooks
- Call history and assertions for stubs
- TypeScript and Python SDKs
More in the pipeline. We're also building toward RAG tooling, AI-native documentation, and model evaluation—on top of the projects above.