A buyer in Toronto reaches the final step on an Indian seller's website. The product is right, but the payment flow feels unfamiliar and the buyer drops off.
That is why how you integrate an international payment gateway matters as much as which methods you enable.
That is why how you integrate an international payment gateway matters as much as which methods you enable.
TL;DR
- An international payment gateway integration connects your website or app to the infrastructure used to accept payments from overseas buyers.
- The three common approaches are a hosted payment page, embedded/hosted fields, and a direct or custom API integration.
- Hosted and embedded models can reduce how much card data your systems handle, but they do not remove PCI DSS responsibilities.
- For Indian businesses, also evaluate international payment methods, currencies, routing, fraud controls, settlement, reconciliation, and regulatory authorisation.
What is an international payment gateway integration?
An international payment gateway integration is the technical connection between your website or app and the payment provider that handles a customer's payment attempt.
A typical flow is:
Buyer chooses method → payment details are securely captured → authorisation is requested → issuer approves or declines → transaction is captured → settlement follows
What are the three ways to integrate a payment gateway?
| Integration type | Buyer experience | Development effort | Checkout control | Best suited to |
|---|---|---|---|---|
| Hosted payment page | Buyer completes payment on a provider-hosted page | Low | Lower | Fast setup, payment links, simpler commerce flows |
| Embedded or hosted fields | Payment fields appear inside your checkout | Moderate | High | D2C, SaaS, branded checkout |
| Direct/custom API integration | Merchant builds more of the payment experience | Highest | Highest | Complex or high-volume platforms |
Hosted payment page
A hosted page moves the payment step to infrastructure controlled by the provider.
This can simplify implementation and reduce how much payment-card data your environment handles.
Embedded or hosted fields
The buyer stays within your checkout while sensitive payment fields can still be served or tokenised by the payment provider.
Direct API integration
A custom API integration gives your team more control over payment logic and user experience, but also brings more implementation, security, testing, and maintenance responsibility.
Does using a hosted checkout remove PCI DSS responsibilities?
No.
Using a compliant provider can reduce PCI DSS scope, particularly where your systems do not store, process, or transmit cardholder data. Merchants still need to understand their scope, use compliant providers, and manage shared security responsibilities.
What happens after the customer clicks Pay?
Payment details captured → request routed → issuer/payment institution authorises or declines → result returns to checkout → capture and settlement follow
Authorisation is not the same as settlement. A successful checkout response does not necessarily mean the money is already in the merchant's bank account.
How to integrate an international payment gateway
- Map buyer markets: Identify countries, currencies, devices, and preferred payment methods.
- Choose the integration model: Match hosted, embedded, or API integration to your technical resources.
- Onboard with the provider: Complete verification and confirm supported markets and payment flows.
- Connect your platform: Use a plugin, SDK, hosted checkout, or API.
- Configure methods and currencies: Prioritise the markets that matter most.
- Test thoroughly: Cover approvals, declines, authentication, refunds, duplicate attempts, mobile, webhooks, and reporting.
- Go live and monitor: Track payment success, failures, refunds, fraud signals, and reconciliation.
What should you check before choosing a payment partner?
| Requirement | What to check |
|---|---|
| International coverage | Buyer countries and supported currencies |
| Payment methods | Cards, wallets, and local methods relevant to your markets |
| Integration options | Plugins, hosted checkout, embedded flows, APIs |
| Payment success | Routing, authentication, retry, and issuer optimisation |
| Fraud controls | Risk scoring without excessive false declines |
| Security | PCI DSS responsibilities and tokenisation approach |
| Regulatory standing | Appropriate RBI authorisation for the activity in India |
| Pricing | Processing, FX, refunds, chargebacks, and fixed charges |
| Settlement | Timing, currency, reporting, and bank-credit visibility |
| Reconciliation | Transaction references, settlement reports, and payment status |
The RBI's Regulation of Payment Aggregators Directions, 2025 consolidated the framework for payment aggregators, including cross-border activity. Verify that a provider is authorised for the activity you intend to use.
What checkout mistakes should you avoid?
Avoid unnecessary redirects, irrelevant payment methods, weak decline handling, happy-path-only testing, and ignoring country-level payment data.
How PayGlocal supports international checkout
PayGlocal is built for Indian businesses accepting international payments and holds RBI authorisation for online payment aggregation and cross-border payment aggregation.
Its stack includes international cards, Apple Pay, Google Pay, local payment methods, localised checkout, intelligent routing, 3DS optimisation, fraud scoring, recurring payments, payment links, hosted payment pages, and Multi-Currency Accounts.
PayGlocal supports collections from 180+ countries, while its Multi-Currency Accounts support 33+ currencies with INR settlement and automated FIRA for supported inward remittances.
