Every brand we talk to has the same complaint about discounts: they work — and that's the problem. A 20% off code lifts conversion this week and trains shoppers to wait for the next code next week. Storewide sales recover Q4 numbers and quietly tell the algorithm that the "real" price of your product is lower than the one on the page.
Today we're launching the SuperPay Merchant API — a Checkout & Rewards API that lets brands attach a SuperPay-funded reward to a transaction at the moment of purchase, without ever changing list price.
The Thesis: Earn Instead of Discount
Shoppers love rewards. Brands hate discounts. Those two sentences sound contradictory, but the difference between them is everything.
- A discount lowers what the shopper pays, lowers your margin, and lowers your perceived value all at once.
- A reward is a thing the shopper earns. Same wallet impact for them. Margin and price integrity stay intact for you.
The Merchant API flips a 20% promo code into "earn $X back, automatically credited to the card you just used." Same dollars in the shopper's pocket — completely different story for your brand.
How It Works in 30 Seconds
Three calls. That's the integration.
- Mint a reward from your server with the amount, expiry, and any targeting metadata.
- Attach it to checkout with our drop-in widget — one
<script>tag on your existing cart page. - Confirm redemption server-to-server when the order completes.
SuperPay never touches your payment flow. Stripe, Shopify Payments, Adyen — whatever you already use — keeps processing the transaction. We just attach the reward.
Who It's For
The Merchant API is built for direct-to-consumer brands with a price worth protecting:
- Premium apparel, beauty, and electronics where every promo code chips away at brand equity
- Considered-purchase categories (travel, home goods, subscriptions) where discounts trigger compare-shopping
- DTC operators trying to reactivate dormant lists without resorting to a code drop
Distribution, Built In
Here's the part most "rewards platforms" miss. Once you're live on the Merchant API, your brand becomes discoverable inside the SuperPay consumer app — surfaced to shoppers who are already optimizing their card spend and actively looking for high-value places to redeem rewards. We're not just a checkout widget. We're a distribution channel that pays you back in repeat customers.
Pricing
- $0 setup, no monthly minimums during pilot.
- 10% platform fee on each reward a shopper actually redeems.
- Unredeemed rewards expire at no cost.
Get Started
Visit /for-merchants to provision a sandbox key in under a minute, or read the full Merchant Partner Guide (also downloadable as a PDF) for the complete walkthrough — code samples, security model, FAQs, and a launch checklist.
For partnerships, co-marketing slots in the consumer app, or volume contracts, email us directly at hello@superpayrewards.com. Same business day reply, every time.
SuperPay sits in the decision layer between the cart and the card. The Merchant API is how your brand gets there.