THE ENGINE

The commerce backend
you drop into any site.

Keep your existing frontend — WordPress, Next.js, Shopify, a hand-rolled HTML page. Engine handles products, cart, checkout, payments, orders, GST invoices, and webhooks. You ship one script tag.

Get started →Engine in 5 minutes
Free · no card required
HOW IT WORKS

Three steps,
about fifteen minutes.

STEP 01

Verify your site.

Add your site URL during onboarding. Prove ownership with a meta tag, a .well-known file, or a DNS TXT record.

STEP 02

Paste the SDK.

<script type="module"
  src="https://aeonzap.com/sdk/aeonzap.js">
</script>
STEP 03

Call the API.

Aeonzap.init({ key });
const products =
  await Aeonzap.products.list();
THE SHAPE OF IT

From a custom backend
to a script tag.

Same product list. One side you maintain. The other side ships in fifteen minutes.

BEFORE~400 lines · 3 services
// db migrations · API routes · auth ·
// inventory rules · pricing · GST split ·
// checkout state machine · payment retries ·
// webhook signing · idempotency tokens ·
// ... maintain forever
AFTER12 lines · 1 script
import { Aeonzap } from '@aeonzap/sdk';

const az = Aeonzap.init({ key: KEY });

const products = await az.products.list();
const cart = await az.cart.add({
  productId: 'pid_01',
  qty: 1,
});
const { checkoutUrl } = await az.checkout.create({
  cartId: cart.id,
  payment: 'razorpay',
});
FRAMEWORK GUIDES

Copy-paste recipes
for the stack you already run.

Step-by-step guides for the four most common setups. Each one ends with a live cart and a real Razorpay checkout.

WordPress

PHP + theme partials

Next.js

React + App Router

Shopify

Liquid theme partial

Custom HTML

Any static site

Connect an existing site →
THE SURFACE

A REST API and a browser SDK.
That's it.

No SaaS lock-in shims. No proprietary serverless functions. Just HTTPS, JSON, and a 4kB ES module.

01

Products & collections

List, filter, paginate. Variants, inventory, pricing rules, media — all served from our CDN.

02

Cart + checkout

Server-side carts keyed by your customer or anonymous token. Apply codes, ship rates, taxes — get a hosted or headless checkout URL.

03

Webhooks

Push order.created, order.paid, refund.issued to your backend. HMAC-signed, retried with exponential backoff.

04

Origin-locked keys

Inbound keys only accept browser calls from domains you allowlist. Server keys for backend-to-backend calls.

05

Fast by default

Edge-cached product reads, P50 under 80ms from India. Carts and orders hit the primary write region.

06

Idempotency built-in

Pass Idempotency-Key on order creation. Retry safely — duplicates collapse to the first successful write.

PERFORMANCE

Numbers we measure
so you don't have to.

47Lifecycle hooksorder, cart, product, customer, payment
80msP50 product readsedge cache · ap-south-1
4kBBrowser SDKES module · zero dependencies
99.97%Uptime, 30dpaged within 5 min of any p95 regression

Free today.

Unlimited API calls. Fair-use rate limits.

Get started →Prefer the hosted storefront? Meet Studio