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

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Zayn A

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

Zayn A

Full Stack Developer NextJS and AI Integrations

  • FromIndia
  • Member sinceJun 2026
  • Languages

    English
You have an idea. I ship it. I'm a Software Engineer who's built and owned full-stack features on a live AI platform - Python/Node.js backends, PostgreSQL, React/Next.js frontends. I build full-stack web & mobile apps, AI features (RAG, LLM integration, AI agents), and backend systems with auth, payments, and API integrations. Recent work: an AI blogging platform, an AI travel-booking agent (cut booking steps 50%), an AI hiring platform with LLM resume screening, and a production CRM with custom backend architecture. I take ownership, communicate clearly, and don't disappear mid-project.

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