Sandbox. Test keys, Arc testnet and test USDC. No real money moves here.

Resources

Changelog and roadmap

Changes to the Checkout API, newest first. v1 only ever changes additively.

18 October 2026 · Webhooks New

  • Signed webhooks for checkout.session.completed, checkout.session.payment_received and checkout.session.expired, using the Standard Webhooks scheme.
  • Up to three endpoints per business, with test events, secret rotation, a delivery log and Resend.
  • Automatic retries with backoff for about four days.

17 October 2026 · Developer platform New

  • The API has its own hosts: https://api.saphra.one/v1 and https://sandbox.api.saphra.one/v1. The earlier addresses (/api/v1 on the SaphraONE app) keep working.
  • A developer portal with these docs, a console for keys and payments, and a Sandbox / Live switch.
  • OpenAPI description at /openapi/checkout-v1.json.

17 October 2026 · Checkout API v1

  • Checkout sessions: create, retrieve, list and expire.
  • Hosted payment page with SaphraONE account, Arc wallet, card or bank, and cross-chain payment.
  • Secret keys for live and sandbox, idempotent creates, cursor pagination.

Roadmap

FeatureWhat it doesStatus
Refunds APIRequest full or partial refunds; you approve them in SaphraONE.In development
Payment linksReusable no-code links that open a checkout.Planned
Embedded checkoutA saphra.js popup so buyers never leave your site.Planned
PluginsWooCommerce first, then Shopify.Planned
More ways to payLocal bank transfer (starting with Naira) and more chains.Planned