TypeSafe AI JavaScript SDK

September 12, 2026 ยท View on GitHub

JavaScript and TypeScript SDK for TypeSafe AI.

Quickstart

Install the SDK (Node.js 20 or newer):

npm install @typesafe-ai/sdk

Set TYPESAFE_API_KEY in your environment, then create and use the client:

import { choice, TypeSafeClient } from "@typesafe-ai/sdk";

const client = new TypeSafeClient();
const response = await client.systemOne({
  state: { document: "I was charged twice. Please fix this ASAP." },
  questions: {
    category: choice("What is this ticket about?", {
      billing: null,
      technical: null,
      other: null,
    }),
  },
});

console.log(response.answers.category.choice);

Answer types are inferred from your questions. The package includes ESM, CommonJS, and TypeScript declarations.

Documentation

Learn what TypeSafe can do in the TypeSafe docs. See the SDK's client and types for API options and defaults.