Once Pay

Problem

Businesses are locked into their payment gateway because their whole payment flow is built around that one provider's integration. When the gateway goes down, they cannot switch, since moving to another provider means a fresh integration, new request formats, and re-tested webhooks. Every outage becomes failed payments and lost revenue, and the business has no leverage to leave a provider that is unreliable or costly.

Solution

Once-Pay gives businesses a unified API: one interface for integrating with every payment gateway. Instead of building and maintaining a separate integration for each provider, teams integrate once and Once-Pay handles the rest, standardizing requests, responses, statuses, and webhooks across Paystack, Flutterwave, Korapay, SeerBit, and Monnify. The payment flow no longer depends on any single gateway, so switching providers or routing around downtime is a configuration change rather than a rebuild.

Technologies used

• TypeScript
• NodeJS
• NextJS
• SQLite
• Linux
• Docker