Library / SDK
Guardrails & Structure
TypeChat
1Get 2typed, 3schema-safe 4responses 5from 6LLMs.
the six Ws · specification
W1
Who
Built by Microsoft.
W2
What
Uses TypeScript types to constrain and validate model responses.
W3
Where
A TypeScript/Python library in your app.
W4
When
When you need structured output as types.
W5
Why
Replaces brittle prompt engineering with type schemas.
W6
With
An LLM API and TypeScript.
W7
Watch
Microsoft open-source, MIT; you supply your own model API key.