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How APIs Connect Payment Gateways With Websites and Apps
Technology September 15, 2026

How APIs Connect Payment Gateways With Websites and Apps

A payment gateway API is what carries a checkout request from your site to a bank and back in seconds. Here is how payment gateway API integration works end to end - the request and response flow, webhooks for real-time transaction status, and the security, testing, and monitoring practices that keep payments reliable across web and mobile platforms.

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