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Payment Gateway

Integrate once, accept payments everywhere

A stable, secure, high-conversion payment interface for websites and apps. Full support for UPI, cards, wallets, and net banking, with smart routing that gives every transaction its best shot at success.

Payment Success RateLive
99.2%
Smart routing + auto-retry · last 7 days
UPICardWalletNetBanking
Why Choose It

More than an API — higher conversions

Smart Routing

Dynamically routes based on each channel's real-time success rate, sending transactions down the path most likely to succeed.

Automatic Retry

Failed transactions automatically switch channels and retry, cutting drop-offs caused by a single channel's hiccups.

Order Management & Reconciliation

HissPay provides payment API integration, order management, callback notifications and reconciliation tools for merchants.

Easy Integration

REST API, SDKs for multiple languages, and e-commerce plugins — go live in an afternoon.

Unified Dashboard

Settlement timing, payment methods and service availability depend on the contracted licensed payment institution’s rules, merchant approval and agreements.

Payment institution settlement support

Settlement timing, payment methods and service availability depend on the contracted licensed payment institution’s rules, merchant approval and agreements.

How It Works

Integrate in Three Steps

Get Your Keys

After opening an account, grab your test and live keys from the dashboard.

Call the Create Order API

Create an order server-side and get a payment link or launch the checkout.

Receive the Webhook

Settlement timing, payment methods and service availability depend on the contracted licensed payment institution’s rules, merchant approval and agreements.

Take your payment success rate to the next level

Open an account online, start testing right away, and switch to production once it's working.

Services and fees

HissPay provides technology for payment integration, order management, notifications and reconciliation. Payment processing, clearing and settlement are handled by the contracted licensed payment institution. HissPay does not receive, hold or handle transaction funds.

Displayed rates comprise the licensed payment institution’s processing fees plus HissPay’s technology service fee; they are not solely HissPay fees. The breakdown, billing method and applicable conditions are specified in the merchant’s signed agreements and fee schedule.