MERCESTACK PAYMENTS · DEVELOPER GUIDES

Build commerce, payments and classes into anything.

One API for your shop front, your backend and your webhooks. Typed SDKs, test keys that never touch your numbers, and a reference that shows the exact request to send.

Quickstart Server API reference

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

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

await shop.addToCart({ variantId, quantity: 1 });
await shop.openCheckout();

pk_…Storefront APICatalog, cart, checkout and customer accounts from any front end, with a publishable key.Read →sk_…Server APICustomers, payment links, transactions, payouts and classes from your backend.Read →eventsWebhooksSigned, retried events when an order is paid, a link is settled or a payout lands.Read →npmSDKs@mercestack/commerce for the browser and React, @mercestack/node for servers.Read →

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

Shell

pnpm add @mercestack/commerce

Sell something

TypeScript

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.

Create a workspace Talk to us Pricing

{}Developers

MERCESTACK PAYMENTS · DEVELOPER GUIDES

Build commerce, payments and classes into anything.

One API for your shop front, your backend and your webhooks. Typed SDKs, test keys that never touch your numbers, and a reference that shows the exact request to send.

Quickstart Server API reference

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

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

await shop.addToCart({ variantId, quantity: 1 });
await shop.openCheckout();

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

Shell

pnpm add @mercestack/commerce

Sell something

TypeScript

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.

Create a workspace Talk to us Pricing