Stripe Payments, Elements & Custom Checkout
Custom embedded Stripe Elements and Hosted Checkout supporting cards, Apple Pay, Google Pay, Klarna, and SEPA debit.
Friction-free one-click checkout branded seamlessly to your website.Eliminate payment failures and cart drop-offs. We integrate secure, multi-currency payment flows across Stripe, Razorpay, PayPal, Apple Pay, and Google Pay with rock-solid webhook reliability, automated invoices, and 3D Secure 2.0 fraud protection.
Select your payment requirements. We reply within one business day.
Prefer email? hello@aviancetechnologies.com
What we integrate
We handle the complete end-to-end transaction lifecycle, from card tokenization to webhook fulfillment and refund automation.
Custom embedded Stripe Elements and Hosted Checkout supporting cards, Apple Pay, Google Pay, Klarna, and SEPA debit.
Friction-free one-click checkout branded seamlessly to your website.Complete Razorpay integration featuring instant UPI intent, dynamic QR codes, Netbanking from 50+ banks, and automated GST invoices.
Fast mobile checkout optimized for Indian shoppers and global exports.Automated monthly/annual recurring billing with grace periods, failed payment retries (smart dunning), and customer self-serve portals.
SaaS subscription engine with automated proration and upgrade workflows.Idempotent server-side webhook endpoints that verify cryptographic signatures and guarantee orders update even if user browsers close.
Zero missing orders or unfulfilled purchases caused by drop-offs.Automatic currency detection based on visitor IP with dynamic pricing, Stripe Tax, and localized VAT/GST compliance.
Displaying prices in USD, EUR, GBP, or INR based on user location.Enforcing 3DS2 biometric and OTP verification with custom Stripe Radar / Razorpay Thirdwatch risk rule configurations.
Protecting your merchant account against fraudulent chargebacks.Why Aviance
Many developers connect a payment gateway but fail to handle dropped webhooks, timeouts, or fraud rules. Here is how we do it.
We utilize hosted fields and SDK tokens. Card data never touches your web server or database, keeping your business legally compliant.
Our webhook handlers implement strict idempotency keys, guaranteeing duplicate webhook dispatches never double-charge or duplicate orders.
Need a payment gateway live urgently for an upcoming launch? We can integrate, test, and deploy verified payment flows in days.
How a payment integration runs
We handle merchant account key configuration, front-end checkout UI, server webhook logic, and live test audits.
Reviewing your gateway accounts (Stripe, Razorpay, PayPal), compliance requirements, currency needs, and checkout flows.
Payment architecture spec and test key setup.Implementing responsive payment fields, Apple Pay/Google Pay buttons, localized currency selectors, and branded styling.
Visual checkout interface working in sandbox mode.Writing idempotent webhook endpoints that handle `payment_intent.succeeded`, failed charges, refunds, and subscription renewals.
Automated database updates upon payment events.Simulating successful charges, 3DS challenges, declined cards, expired subscriptions, and refund flows in test environments.
Zero-error test audit across all failure states.Exchanging API keys for production credentials, running a live $1 verification transaction, and issuing an automated refund.
Live, verified payment gateway accepting real revenue.Ways to start
One-time integration fees with zero ongoing transaction markups. You pay your gateway directly for standard processing fees.
From $250
Integration of a single payment gateway (Stripe, Razorpay, or PayPal) on an existing website or store.
From $550
Dual gateway integration (e.g., Stripe + Razorpay/PayPal) with recurring subscriptions and multi-currency support.
From $1,100
Complex payment architecture for multi-vendor platforms, split payments, and escrow workflows (Stripe Connect).
A recent project · Eternal Shine
Integrated dual payment routing that automatically detects user geography, routing domestic Indian customers to UPI/Razorpay and international buyers to Stripe.
Eternal Shine was losing international customers because their existing payment gateway only accepted Indian credit cards and failed foreign transactions.
We developed an intelligent currency router that automatically switches between Razorpay (UPI, Netbanking) and Stripe (Apple Pay, USD/EUR credit cards) with automated PDF invoicing.
Zero foreign transaction drop-offs and a 46% increase in international sales volume within the first 30 days.
Send us a description of your payment setup. We will inspect your webhook error logs and reply within one business day with the exact technical fix.
Where it shows up
The stack follows the job. We use what your project actually needs.
FAQ
Pricing, delivery timelines, platforms, technical specifications, and post-launch support.
Get A Free QuoteThe ideal gateway depends on your target customer location: Stripe is the gold standard for international transactions, supporting cards, Apple Pay, Google Pay, and localized European payment methods in 135+ currencies. Razorpay is the premier choice for customers in India, supporting UPI (Google Pay, PhonePe, Paytm), Netbanking across all Indian banks, and local debit cards. PayPal is valuable globally as a recognized alternative payment method. Many successful businesses integrate dual gateways (e.g., Stripe for international + Razorpay for domestic) to maximize conversion rates everywhere.
We implement 100% tokenized payment architectures using Stripe Elements or Razorpay Checkout SDKs. Under this architecture, the customer's credit card number, expiration date, and CVV are entered into secure iframe fields hosted directly by the payment processor's PCI-DSS Level 1 certified servers. Raw card numbers never touch or pass through your website server or database, keeping your business legally compliant with zero regulatory liability.
This common bug occurs when an amateur integration relies on browser-side redirects rather than asynchronous server-to-server webhooks. If a customer closes their browser tab, experiences a cellular network disconnect, or has an aggressive ad-blocker before redirecting back to your confirmation page, the browser never notifies your database that the payment succeeded. We resolve this by building cryptographic server-side webhook endpoints that listen directly to the payment gateway and update orders reliably 100% of the time.
Yes. We integrate Stripe Billing and Razorpay Subscriptions to manage recurring monthly or annual plans. We implement customer billing portals where your clients can update credit cards, upgrade/downgrade subscription tiers, view historical invoices, and manage cancellations automatically without contacting customer support.
A single payment gateway integration (such as Stripe or Razorpay) typically takes between 2 and 3 business days. More complex implementations featuring multi-currency switching, automated subscription dunning, or custom marketplace split payouts take between 4 and 6 business days. We always conduct live test transactions before handing over.
Yes! We configure Apple Pay and Google Pay via Stripe and Razorpay Payment Request APIs. Apple Pay requires domain association file verification, which we configure directly on your server. On mobile devices, this allows shoppers to complete checkouts using Face ID or Touch ID in seconds without typing 16-digit card numbers.
We perform multi-stage testing: First, we test comprehensive scenarios using the payment provider's sandbox test credentials (simulating successful charges, 3DS OTP challenges, insufficient funds, and expired cards). Once sandbox testing passes, we switch to live production keys and execute a live $1 micro-transaction with real credit cards and UPI, verify webhook fulfillment, and issue an immediate refund.
Yes. We build multi-currency checkout architectures. We can either automatically detect the visitor's country via geolocation and display native currency pricing, or provide an interactive currency selector dropdown. The payment gateway charges the customer in their native currency and deposits the funds into your primary bank account in your preferred settlement currency.
3D Secure 2.0 is an authentication protocol that adds an extra layer of biometric (Face ID / fingerprint) or one-time password (OTP) verification to prevent fraud. It is mandatory in Europe under PSD2 / Strong Customer Authentication (SCA) regulations and mandatory in India for card transactions. We configure 3DS2 frictionless authentication so compliant low-risk payments pass instantly while high-risk payments prompt for verification, protecting you from chargebacks.
No. Aviance charges a one-time project fee for the design, development, and testing of your payment integration. You only pay standard transaction processing fees directly to your payment gateway (e.g., Stripe's 2.9% + 30¢ or Razorpay's 2%). We take 0% of your transaction revenue.
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Send a few details. We reply within one business day with scope, timeline, and a number you can plan around.