TypeScript SDK

Using the REST API from TypeScript

const BASE = "https://sandbox-api.nuez.app/v1";
const API_KEY = "nz_YOUR_KEY_HERE";

// 1. Exchange the API key for a JWT (see /rest-api/authentication)
const { token } = await fetch(`${BASE}/auth/token`, {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({ api_key: API_KEY }),
}).then(r => r.json());

const headers = {
  Authorization: `Bearer ${token}`,
  "Content-Type": "application/json",
};

// Balance
const balance = await fetch(`${BASE}/balance`, { headers }).then(r => r.json());
console.log(balance.available, balance.asset);

// Payout
const payout = await fetch(`${BASE}/withdraws`, {
  method: "POST",
  headers: { ...headers, "Idempotency-Key": "inv-2026-04-001" },
  body: JSON.stringify({
    amount_ars: 5000,
    destination: "0000003100010000123456",
    destination_kind: "CBU",
  }),
}).then(r => r.json());
console.log(payout);

Using MCP from TypeScript instead

For an agent, calling POST /mcp directly with your raw API key skips the JWT exchange entirely — see Custom agents.