I will integrate payment gateways, crypto payments and onramp card to crypto payment


About this gig
Whether you need a payment gateway, crypto payment gateway, or card to crypto payment gateway integration for your web application, you have reached the right gig!
I am specialize in integrating secure and reliable payment gateways and payment solutions according to your requirements.
What I Can Help With:
Payment Gateway Integration:
- Stripe
- PayPal
- Mollie
- Square
- Authorize.Net
- Checkout.com
- Flutterwave
- etc.
Crypto Payment Gateway Integration:
- NOWPayments
- BTCPay Server
- Crossmint
- PayRam
- CoinGecko
- Wallet based payments
- etc
Card to Crypto or On Ramp Integration:
- Card to Crypto payment flow
- Fiat to Crypto payments
- Crypto purchase checkout
- Wallet integration (Cold and Hot wallet)
- OnRamp API integration
Payment Features:
- Webhooks & callbacks
- Payment status synchronization
- Transaction handling
- One time Subscription payments
- Wallet integration
- Sandbox & production configuration
- Error handling & debugging
- Payment testing
- Deployment support
Technologies:
- Laravel, PHP, React.js, Next.js, Node.js, Express.js, Fastify,
- MERN Stack, MEAN Stack and other modern web technologies.
Please contact me before placing an order.
Get to know Rehman Tech Eng
Full Stack Web Developer Creating Fast, Modern Website for Businesses and Brands
- FromPakistan
- Member sinceAug 2026
- Avg. response time1 hour
Languages
Urdu, English, Hindi
FAQ
What payment gateways can you integrate?
I can integrate a wide range of payment gateways including Stripe, PayPal, Razorpay, Mollie, Square, Authorize.Net, Checkout.com, Flutterwave and other payment platforms that provide API integration support.
Can you integrate crypto payment gateways?
Yes. I can integrate crypto payment gateways and checkout solutions such as: NOWPayments BTCPay Server Crossmint PayRam etc I can also work with other crypto payment platforms if they provide proper API documentation and integration access.
Can you integrate card to crypto or on ramp payments?
Yes. I can integrate card to crypto and fiat to crypto payment flows where supported by the payment provider. This can include: Card payment flow Fiat to Crypto purchases On Ramp APIs Crypto checkout Wallet integration Payment status tracking
Can you integrate Stripe and PayPal?
Yes. I can integrate Stripe and PayPal for different payment requirements, including: One time payments Checkout Payment Intents Subscriptions Webhooks Payment status updates Refund handling Database synchronization
Can you work with a payment gateway that is not listed in your gig?
Yes. If your payment gateway or crypto payment platform provides API documentation, credentials and integration access, please let me know the platform name. I will review it before we start.
What do you need to get started?
To get started, I normally need: Payment gateway platform name API documentation API keys Your clear requirements Website or application source code Hosting or server access if deployment is required
Which technologies do you work with?
I work with modern web technologies including: Laravel PHP JavaScript React.js Next.js Node.js Express.js Fastify MERN Stack MEAN Stack I can integrate into both existing applications and newly developed systems. and if you dont have a web application i can create from scratch.
Can you fix an existing payment gateway integration?
Yes. I can troubleshoot and fix issues such as: Payment failures Webhook problems API authentication errors Checkout errors Incorrect payment status Database synchronization issues Sandbox or production configuration API migration issues
Why should I contact you before placing an order?
Every payment integration is different. The complexity depends on the payment provider, API documentation, authentication method, checkout flow, webhooks, wallet requirements, your application architecture and server environment. I can review your requirements and recommend the correct package.

