Documentation
Step-by-step guides for the Upibridge UPI stack: redirect checkout by default, optional popup checkout, and webhooks as the only reliable signal for payment success.
How Upibridge checkout works
- Redirect checkout is the default: customers complete UPI payment in a full-page flow.
- Popup checkout is an optional, free upgrade for UX—open the same payment URL in a focused window when browsers allow it.
- Webhook is the only source of truth for payment success. Always confirm funds and order fulfillment server-to-server from your webhook handler.
- Treat redirect/return URLs and client-side callbacks as UX hints only—not proof of payment.
Webhook verification guide · Popup checkout (JavaScript SDK)
Start here
UPI API Integration Overview
Create Order API — UPI Payment Session
Payment Webhooks — Source of Truth