BAML looks like TypeScript, but every feature is built so agents make fewer mistakes:

• Statically typed like Rust, with colorless concurrency like Go.
• Types persist at runtime. There is no any.
• Errors are typed and statically analyzed.
• The filesystem describes the modules/namespaces.
• Run BAML standalone, or call it from any language of your choice (Python, TypeScript, Go, and more).

Explore the website and examples.

Try it out

brew install boundaryml/tap/baml
baml agent install
baml init
baml ide install --code

Or read the quickstart.

Contributing

See our guide on getting started.

---

Made with ❤️ by Boundary. HQ in Seattle, WA.

We're hiring software engineers who love Rust. Email us or reach out on Discord.