Medusa.js Has a Free API That Most Developers Dont Know About

Medusa is an open-source headless commerce platform. It provides REST and JS APIs for products, carts, orders, payments — build any storefront.

Quick Start

npx create-medusa-app@latest
cd my-medusa-store
npx medusa develop

JS Client

import Medusa from "@medusajs/js-sdk";

const medusa = new Medusa({ baseUrl: "http://localhost:9000", publishableKey: "pk_..." });

// Products
const { products } = await medusa.store.product.list({ limit: 10 });
const { product } = await medusa.store.product.retrieve(productId);

// Cart
const { cart } = await medusa.store.cart.create({});
await medusa.store.cart.createLineItem(cart.id, { variant_id: variantId, quantity: 1 });

// Checkout
await medusa.store.cart.addShippingMethod(cart.id, { option_id: shippingOptionId });
await medusa.store.cart.complete(cart.id);

REST API

GET /store/products?limit=10
GET /store/products/:id
POST /store/carts
POST /store/carts/:id/line-items
POST /store/carts/:id/complete

Key Features

• Headless commerce engine
• Multi-region, multi-currency
• Payment plugins (Stripe, PayPal)
• Tax and shipping modules
• Admin dashboard
• Self-hostable

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