SaphraONE Checkout API
Create a checkout session on your server, send the buyer to a hosted payment page, and receive USDC in your business wallet in under a second. No processing fee, no chargebacks, no wallet code.
curl https://sandbox.api.saphra.one/v1/checkout/sessions \
-H "Authorization: Bearer sk_test_…" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: order-1042" \
-d '{"amount": "25.00", "success_url": "https://shop.example/thanks"}'
# → 201 Created
{
"id": "cs_test_4f9k2m7q1x8v4b6n0c5d2h7j",
"object": "checkout.session",
"status": "open",
"payment_status": "unpaid",
"amount": "25",
"currency": "USDC",
"url": "https://app.saphra.one/checkout/cs_test_4f9k2m7q1x8v4b6n0c5d2h7j"
}Your buyers can pay with
How it works
Your server sends the amount and a return URL to POST /v1/checkout/sessions.
Redirect to the session’s url. SaphraONE handles wallets, cards, bridges and receipts.
Retrieve the session. When it says complete, the USDC is already in your wallet.
Built for production
Hosted checkout
A secure, mobile-ready payment page with your brand, order lines and a live countdown.
Every way to pay
SaphraONE account, any Arc wallet, card or bank, and USDC from six other chains.
Instant settlement
Payments are final on Arc in under a second and land straight in your business wallet.
Safe retries
Retry any create with an Idempotency-Key. One order never becomes two sessions.
Nothing lost
Partial payments, overpayments and late card payments are tracked for you, to the cent.
Secure by default
Verified businesses only, hashed keys, server-only access and an unframeable page.
Build against Arc testnet with sk_test_ keys and free test USDC. Same API, same page, no real money. No business verification needed.
Switch the key and the base URL. sk_live_ keys take real USDC and EURC on Arc mainnet, for verified businesses.
For business owners
No processing fee in v1, no chargebacks, no payout delays. Every sale lands in the wallet you control, with the order number attached, ready for payroll, suppliers or savings in SaphraONE.
Read the business guideCreate a free test key and take your first payment in five minutes.