Developers · Business API

Build onthe same Operating System.

Payments, catalog, and agents with an official SDK. The same HMAC auth your store uses — ready for production, playground, and MCP.

How HMAC works
NestJSNext.jsLaravelReactAngularVue.jsNode.jsTypeScriptJavaScriptPythonExpressPHPSymfonyMongoDBGoGraphQLDocker
createPaymentOrder.ts
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HMAC-SHA256 · apiKey never on the wire

What you can do

Four surfaces.One contract.

  1. Payment orders

    Create, list, and fetch payment orders. Amounts from catalog or fixed — same HMAC contract.

  2. Remote catalog

    Products, categories, variants, and inventory via API. Your stack, our prices on the server.

  3. HMAC signing

    Every authenticated request. The apiKey never travels: only timestamp + stable body.

  4. Agents and MCP

    Agent tokens and MCP tools for Cursor and assistants — granular scopes.

Try it in the playground.

Credentials in sessionStorage, secure proxy, and live examples — no backend setup just to explore the API.

How HMAC works ›
(opens in a new tab)Business API and SDK | Hanix