Documentation

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BAML documentation

  • Overview
  • Get started
  • Book
    • 3. Common programming concepts
    • 8. Handle errors
    • 11. Interfaces
    • 12. Run work concurrently
    • 22. Patterns, matching, and destructuring
  • Language reference
    • Functions
  • Standard packages
  • Language bridges
    • TypeScript

Products

  • BAML CLI
  • Cloud

Resources

  • Tutorials
    • Structured extraction
  • Examples
    • Classify support tickets
    • Images and vision models
HomeBAMLCLICloudTutorialsExamples
Start

Sections

  • Overview
  • Get started
  • Book
    • 3. Common programming concepts
    • 8. Handle errors
    • 11. Interfaces
    • 12. Run work concurrently
    • 22. Patterns, matching, and destructuring
  • Language reference
    • Functions
  • Standard packages
  • Language bridges
    • TypeScript

Products

  • BAML CLI
  • Cloud

Resources

  • Tutorials
    • Structured extraction
  • Examples
    • Classify support tickets
    • Images and vision models
BAML CLIv0.22.3-nightly.20261013.bCommandstoolchainuse

baml toolchain use

Install if needed and select as default

Reference version

Usage

baml toolchain use <canary|nightly|version|path>

On this page

  • Usage

Build with BAML

Start with the language guide and a checked BAML function.

Continue into generated package and CLI references for the exact selected toolchain.

Get started
Developer documentation for BAML and Boundary products. Source available on GitHub. View release notes