Boring software, on purpose
Every write endpoint takes an idempotency key. Retry a payment safely after a timeout. Endpoints are versioned, so a new field never breaks your build. We hold a 99.9%+ uptime target on the payment path.
Webhooks are signed and replayable. Decline reasons come back raw from the issuer. Payment and shopper data stays in-region. The team's background is regional payments rules, scheme requirements and merchant operations. That shows up in the defaults we ship, not in a slide deck.
Start with the API reference or read how open banking settles on SEPA Instant.