Illustration: payments travelling between cities around the world through Interpay.
Commerce infrastructure for the modern internet.
Build your storefront, sell products and accept crypto payments on one platform. Checkout, orders, webhooks and the API come already connected.
The checkout and dashboard, sped up. Litecoin adds a block about every 2.5 minutes, Ethereum about every 12 seconds.
Platform
Everything you need to sell online.
Your storefront on top, and everything behind it already connected. Products, checkout, payments, orders, customers and the API all work on the same order, so one sale updates every part at once.
- Storefronts: your store, on your domain, in one of five themes.
- Products: variants, stock, files and license keys.
- Checkout: cart, discounts, shipping and tax, priced on the server.
- Payments: Litecoin and Ethereum, confirmed on chain.
- Orders: payment and fulfillment status in one place.
- Customers: every buyer and what they ordered.
- Developers: an API and signed webhooks for every event.
Storefronts
Build a storefront without rebuilding your stack.
Five themes, a visual editor and your own domain. Change the look as often as you like; products, checkout, orders and payments stay exactly where they are.
Theme
Colors Default
Sections
- Announcement bar
- Hero
- Best sellers
- Image with text
- Design
- Products
- Checkout
- Order
- Five themes, five palettes each
- Fonts, colors, layout and sections, all rendered from the same catalog.
- Drafts and versions
- Edit a draft, publish when it's ready, and restore any earlier version.
- Your own domain
- Point a CNAME at Interpay and prove it's yours with one TXT record.
- Analytics without cookies
- Page views and visitors next to revenue and orders, no consent banner needed.
Payments
Payments that move at internet speed.
Seen on the network in seconds, confirmed in minutes and credited to your balance the moment they're final. No batches, no settlement days.
Crypto payments
Litecoin and Ethereum, priced in euros or dollars at a rate held for the whole payment window.
Payment links
Sell one product or a fixed amount from a link you can share anywhere. No storefront needed.
Invoices from your server
One API call creates a payment with its own address, amount and checkout page.
Automatic confirmation
Interpay watches the chain and applies your rules: one block under 50, three above, or your own.
Clear payment status
New, confirming, paid, underpaid, expired or canceled. Never a guess.
Webhooks
A signed event at every change, retried for up to a day until your server answers.
Checkout
Accept crypto without building the infrastructure yourself.
No nodes to run, no addresses to manage, no exchange rates to fetch. Your customer picks a coin, pays from any wallet and watches it confirm, as simply as paying by card.
Choose a coin
The price is in euros. The customer picks Litecoin or Ethereum and sees what that comes to.
Awaiting payment
The rate is locked for 15 minutes and the order gets an address of its own. Scan, or open the wallet.
Payment detected
Seen on the network within seconds. If too little arrives, the page asks for the rest.
Confirming
Block by block, against your rules: Litecoin adds one about every 2.5 minutes, Ethereum every 12 seconds.
Completed
Credited to your balance, your shop told by webhook, the customer sent back to you.
- An address for every payment
- Each order gets its own, so every payment matches exactly one order.
- Partial payments handled
- If too little arrives, the checkout asks for the rest at the same address.
- Late money isn't lost
- Payments after the window closes are held for you to credit or refund.
- Test mode on real testnets
- Litecoin testnet and Sepolia, with the same API, checkout and webhooks.
Developers
Built for developers. Ready for production.
A small REST API, signed webhooks and a test mode on real testnets. Build the whole integration before you take a single real payment.
curl https://staging.interpay.one/api/v1/invoices \
-H "Authorization: Bearer ip_live_…" \
-H "Idempotency-Key: order-1042" \
-d '{"amount": "114.50", "currency": "EUR",
"crypto": "LTC", "order_id": "1042"}'
{
"id": "cmv1q8zrk000d7bzeh3m4x9tw",
"status": "new",
"amount": "114.50",
"currency": "EUR",
"crypto": "LTC",
"amount_crypto": "1.58127330",
"address": "ltc1qg7x4m2d9wq0v3k8s6h5yz2fe4tnr0ahl5xjc8p",
"required_confirmations": 3,
"checkout_url": "https://staging.interpay.one/pay/cmv1q8zrk000d7bzeh3m4x9tw",
"expires_at": "2026-10-06T19:40:34.000Z"
}
- Safe retries
- Send an Idempotency-Key and a repeated request returns the first payment, never a second one.
- Test and live keys
- ip_test_ keys run on Litecoin testnet and Sepolia, with the same API and webhooks.
- Webhooks you can trust
- HMAC-SHA256 signed with a timestamp, retried for up to a day, re-sendable from the dashboard.
- Stores and orders too
- Read stores, products and orders, and mark orders fulfilled with a tracking number.
Orders
One order, from first visit to fulfillment.
Every step writes to the same order, so nothing is copied between systems. Digital products are delivered the moment the payment confirms; physical ones wait for you to ship them.
- CustomerA returning customer arrives at your store.
- StorefrontYour theme, your domain, your catalog.
- ProductVariants, stock and prices from one catalog.
- CheckoutThe cart is priced on the server: discounts, shipping and tax.
- PaymentA locked rate and an address for this order alone.
- ConfirmationWatched block by block until it's final.
- OrderPaid, recorded, and announced to your systems.
- Download unlocked
- Fulfillment
Digital products: delivered at once
BRLG-7Q4M-2KXP-9HTDPhysical products: shipped by you
DHL 00340434161298718 · tracking emailed to Lena
Global
Sell globally without rebuilding your payment stack.
Price in euros or dollars. Customers anywhere pay in Litecoin or Ethereum from any wallet, and every sale settles into one balance.
Merchant
You set the price
In euros or dollars, in a storefront and checkout that speak English, German, French, Spanish and Dutch.
Interpay
Interpay does the rest
Locks the rate, gives each order an address, confirms it on chain and credits one balance you withdraw to your own wallet.
Global customers
Customers pay from anywhere
With Litecoin or Ethereum, from the wallet they already use. They don't need an account or a card.
Security
Every payment accounted for.
Interpay is built around explicit states, signed events and keys that never touch a web server.
POST /hooks/interpay Interpay-Signature: t=1791315062,v1=5f2b9c41…e07a HMAC-SHA256(secret, t + "." + raw body) = 5f2b9c41…e07a
- Signed webhooks
- Every delivery carries an HMAC-SHA256 signature over a timestamp and the raw body, so you can reject anything old or altered.
- Keys shown once
- API keys are stored only as hashes. Test and live keys are separate, show when they were last used and can be revoked at once.
- Private keys kept apart
- Only an isolated signer holds private keys, never the web servers. Withdrawals are saved before they're broadcast, so a crash can't send money twice.
- Two-factor where it counts
- Authenticator codes at sign-in, and again for withdrawals, refunds and password changes.
- Every state explicit
- A payment is new, confirming, paid, underpaid, expired or canceled, and is credited exactly once. Late or partial money waits for your decision.
- A checkout that can't be disguised
- Your storefront takes your CSS; the checkout doesn't. Amounts and addresses always appear the way Interpay shows them.
Pricing
One fee, and only when you get paid.
Everything is included from the first day. Start in test mode for free and go live once we've verified your business.
1%
of each paid payment
- No setup or monthly fee
- Nothing for expired or canceled payments
- Withdrawals cost only the network fee
Order #1042, paid in Litecoin
- Customer paid
- Ł 1.58127330 €114.50
- Interpay fee, 1%
- − Ł 0.01581273
- To your balance
- Ł 1.56546057
Included
- Storefronts, themes and custom domains
- Hosted checkout and payment links
- Orders, customers, coupons and digital delivery
- The API, webhooks and test mode
Build your commerce stack on Interpay.
Launch your storefront, connect your products and start accepting payments from anywhere.