Payment Integration

Checkout is the one part of a product where a bug directly costs you revenue, not just a bad review — an unhandled webhook or a race condition in your billing logic can mean double-charged customers or silently failed subscriptions. We build payment flows the way we'd want them built if it were our own money moving through the system: idempotent webhook handling, reconciliation logic that catches mismatches before your finance team does, and PCI-compliant architecture so sensitive card data never touches your servers unnecessarily. Whether it's a simple one-time checkout, recurring subscriptions with proration and dunning, or a marketplace splitting payouts across multiple parties, we've built the edge cases before, not just the happy path.

A standard checkout or subscription integration starts lower; marketplace payouts, multi-currency support, or custom fraud rules scale the estimate up.