I will integrate any thirdparty API into your web or mobile app


About this gig
Half your app works. The other half is stuck on an API that won't connect a payment gateway throwing errors, a booking/travel API returning garbage data, an AI API you can't get authenticating right.
That's exactly what I fix. I don't build from scratch here I connect what you already have, cleanly and correctly.
I've integrated the Amadeus flight API across 500+ routes into a production booking flow, along with payment gateways, auth providers, and AI/LLM APIs into live products used by real users.
What you get:
A working integration with proper error handling not a fragile hack that breaks on the first edge case
Support for REST, webhooks, and OAuth-based APIs
Clear documentation of what was connected and how it works
Tested before delivery, so it works the first time you use it, not after three rounds of "it's still broken"
Send me the API docs (or a link) and a quick description of your current setup before ordering I'll tell you honestly how long it'll actually take.
Get to know Zayn A
Full Stack Developer NextJS and AI Integrations
- FromIndia
- Member sinceJun 2026
Languages
English
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FAQ
Do you need access to my codebase, or just the API docs?
Both, ideally. Access to your existing code (via GitHub, a zip, or screen share) lets me integrate directly into your setup rather than handing you a standalone script you have to wire in yourself.
What if the API doesn't have clear documentation?
I can usually still work with it — send me what you have, including any example requests or existing partial integration, and I'll assess feasibility before you order.
Can you integrate payment gateways like Stripe or Razorpay?
Yes, that's one of the most common requests here — included in Standard/Premium or available as a Gig Extra on Basic.
Will you share credentials/API keys securely?
Yes — I never ask for credentials over chat; we'll use your platform's proper secrets/env-variable setup so nothing sensitive is exposed.
What if the integration breaks after delivery?
Each package includes revisions for issues within the original scope. If it's a new requirement or the third-party API changed on their end, that's handled as a quick paid follow-up.
Can you fix an integration someone else built that's broken?
Yes — this is a common ask. Send me the current code and the error you're seeing, and I'll scope it as a fix rather than a rebuild where possible.
Do you work with mobile app APIs too (React Native, Flutter, etc.)?
Yes, primarily React Native — for other frameworks, message me first to confirm fit.

