Commerce API

Quickstart

Four lines from an empty page to a paid order. Start here.

Mercestack Commerce is a headless commerce engine. Your catalog, pricing, stock, checkout, payments and orders live on our side; the shop front is yours to build in whatever you already use — Next.js, React, Vue, Laravel, a mobile app, or plain HTML.

If you would rather not build one at all, every workspace gets a hosted storefront that runs on this same API. Nothing here is a private endpoint reserved for it.

Install

pnpm add @mercestack/commerce

Sell something

import { Mercestack } from "@mercestack/commerce";

const mercestack = new Mercestack({ publicKey: "pk_live_…" });

const { products } = await mercestack.getProducts();

await mercestack.addToCart({
  variantId: products[0].variants[0].id,
  quantity: 1,
});

await mercestack.openCheckout();

That is the whole integration. There is no cart to create first, no session to establish, and no id to hold on to — the first call that needs a cart makes one and remembers it.

Commerce API

Quickstart

Four lines from an empty page to a paid order. Start here.

If you would rather not build one at all, every workspace gets a hosted storefront that runs on this same API. Nothing here is a private endpoint reserved for it.

Install

pnpm add @mercestack/commerce

Sell something

import { Mercestack } from "@mercestack/commerce";

const mercestack = new Mercestack({ publicKey: "pk_live_…" });

const { products } = await mercestack.getProducts();

await mercestack.addToCart({
  variantId: products[0].variants[0].id,
  quantity: 1,
});

await mercestack.openCheckout();

That is the whole integration. There is no cart to create first, no session to establish, and no id to hold on to — the first call that needs a cart makes one and remembers it.