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Fiverr Pro
English
$
USD
I will build rest API integrations for your mern or pern app
Usman
About this gig
Need to connect your app to Stripe, Auth0, Twilio, OpenAI, or any other third-party service? I specialize in fast, secure API integrations for MERN and PERN stack apps including apps built with vibe-coding tools like Bolt, Lovable, or v0 that need a professional developer to finish the job properly.
What I offer:
REST & GraphQL API integration
Payment gateways (Stripe, PayPal)
Authentication (Auth0, JWT)
Third-party APIs (Twilio, OpenAI, Google Maps, and more)
Webhook setup & error handling
Clean, well-documented code
Why work with me:
I've delivered fullstack MERN/PERN projects and bug fixes for clients on Fiverr, so I know how to work inside an existing codebase without breaking things. I write clear documentation and communicate at every step, so you always know what's happening with your project.
Startups and non-technical founders: if your app "mostly works" but the integrations are broken or missing, I can fix that fast.
Message me before ordering if you're not sure which package fits your project happy to advise
Get to know Usman
Usman
MERN Stack Developer PERN Stack
- FromPakistan
- Member sinceJan 2026
- Avg. response time1 hour
Languages
Urdu, English
I build scalable, production-ready full-stack applications using MERN, PERN, and Next.js.
From responsive UIs to secure JWT/OAuth authentication, I handle the full stack — including real-time features with WebSockets and WebRTC, AI integrations, and Stripe payment systems.
With experience across internships and professional software houses, I've shipped:
SaaS platforms with subscription billing and role-based access
Real-time trading and video conferencing tools
AI-powered chat applications
Professional networking platforms
I focus on clean, maintainable code and fast, honest communication
My Portfolio
FAQ
Do you work with apps built using AI/vibe-coding tools like Bolt or Lovable?
Yes — I regularly clean up and integrate APIs into apps built with AI tools. I'll review your codebase first to make sure the integration is solid and secure.
Q: What information do you need from me to get started?
Access to your repo (GitHub/GitLab), API keys for the services you want integrated, and a short description of what you need. I'll confirm scope before starting.
Q: Do you provide documentation after delivery?
A: Yes, every package includes clear setup notes so you or your team can maintain the integration going forward.
Q: What if I need an API you don't see listed?
A: Message me first — I work with most modern REST/GraphQL APIs and can confirm compatibility before you order.
