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English
$
USD
I will fix or integrate payment gateway, stripe api, paypal, square, adyen into website
Helen
About this gig
Is your website payment gateway not working, payments failing, or checkout throwing errors?
I can help you fix, integrate, or optimize Stripe, PayPal, Square, or Adyen payment systems so your customers can complete transactions smoothly and securely.
Whether you're dealing with payment declines, API errors, failed checkouts, webhook issues, 3D Secure problems, incorrect payment status, or a new payment gateway integration, I'll troubleshoot the issue and implement a reliable solution.
What I can help with:
- Stripe API & payment integration
- PayPal API & Checkout integration
- Square payment integration
- Adyen payment integration
- Payment gateway error fixing
- API & webhook troubleshooting
- Failed payment & checkout issues
- 3D Secure / authentication flows
- Payment status & transaction handling
- Sandbox testing and production setup
My goal is simple: get your payment system working correctly, securely, and ready to process real transactions.
Place an order now or send me a message with your website and payment issue, and let's get your checkout working.
I am willing to start working on your project immediately if urgent with no EXTRA CHARGES
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Helen
Helen
Professional Website Designer to bring your vision to life
- FromUnited States
- Member sinceJul 2026
- Avg. response time1 hour
Languages
English
Hi there! I help businesses build modern, mobile-friendly websites that look professional and convert visitors into customers.
I specialize in WordPress, Wix, Squarespace, GoHighLevel, Shopify, and GoDaddy websites, including redesigns, landing pages, booking systems, eCommerce stores, SEO setup, and speed optimization.
Whether you need a new website or want to improve an existing one, I’ll deliver a clean, responsive, and conversion-focused result.
Message me and let’s bring your vision to life.
FAQ
Can you fix my existing Stripe or PayPal payment integration?
Yes. I can troubleshoot API errors, failed transactions, checkout issues, webhook problems, and incorrect payment flows.
Can you integrate a payment gateway into my website?
Yes. I can integrate Stripe, PayPal, Square, or Adyen into your existing website or application.
Why are my customers' payments being declined?
Payment declines can happen for several reasons, including card issues, incorrect API data, account configuration, currency problems, or authentication requirements. I'll investigate the integration and identify the technical cause where possible.
Can you fix payment webhook issues?
Yes. I can troubleshoot webhook configuration and payment status updates so your website can correctly respond to successful, failed, or completed payments.
Can you handle 3D Secure payment issues?
Yes. I can help troubleshoot and implement payment flows that require 3D Secure or additional customer authentication.
Can you test the integration before going live?
Yes. I can test the payment flow in a sandbox/test environment and verify the integration before production deployment.
