For developers
A crypto payments API you'll enjoy using.
One API key, predictable JSON and signed webhooks. Drop in a buy button, embed checkout or build your own pay screen.
REST API
Create checkouts and direct crypto payments with one API key.
Signed webhooks
Retried events, plus a simulator for underpaid, expired and failed payments.
Buy button
Paste one snippet on Webflow, WordPress or plain HTML.
Embedded checkout
Mount the full checkout inside your page in an iframe.
Elements
Render the pay UI in your own page — no iframe, no redirect.
Scoped keys
Publishable and secret keys you can rotate at any time.
curl -X POST https://noteller.com/api/user/createPayment \ -H "x-api-key: $NOTELLER_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "amount": 50, "redirect_uri": "https://yoursite.com/thanks" }'# The response includes checkout_url —# send your customer there.# Confirm fulfilment with the payment.succeeded webhook.
Test end-to-end with a real $1–2 Litecoin payment — fees are a fraction of a cent.
Start accepting crypto in minutes.
Create your free account, add your wallet and share your first payment link today.