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Fiverr Pro
English
$
USD
I will integrate any third party API into your web app
Hassan Raza
About this gig
Need to connect your app with Stripe, OpenAI, HubSpot, Twilio, or any other API? I've got you covered.
I specialize in integrating third-party APIs into web applications cleanly, reliably, with proper error handling. No spaghetti code, no "works on my machine" just production-ready integrations that don't break.
APIs I'VE INTEGRATED:
- Payments: Stripe, PayPal, Square
- AI: OpenAI, Claude, ElevenLabs, Replicate
- Email: SendGrid, Resend, Mailchimp
- SMS/Voice: Twilio, Vonage
- CRM: HubSpot, Salesforce, Zendesk
- Scheduling: Calendly, Cal.com
- Cloud: AWS (S3, SES, Lambda), Google Cloud, Firebase
- Maps: Google Maps, Mapbox
- Authentication: Auth0, Clerk, Firebase Auth
- Messaging: Slack, Discord, WhatsApp Business
- E-commerce: Shopify, WooCommerce
FAST TURNAROUND Basic integrations delivered in 1 days!
Message me with your API needs I'll confirm feasibility and give an accurate quote fast.
Get to know Hassan Raza
Hassan Raza
Full Stack Developer building Custom Web Apps SaaS and AI Solutions
- FromPakistan
- Member sinceNov 2020
- Avg. response time1 hour
- Last delivery9 months
Languages
English, Urdu, Hindi, Punjabi
Hi, I'm Hassan, a full-stack developer with 5+ years of experience building production web apps, SaaS platforms, and AI solutions for clients worldwide. I specialize in React.js, Next.js, NestJS, TypeScript, Node.js, MongoDB, PostgreSQL, MySQL, Supabase, Stripe, and AI integration, delivering complete products end to end: frontend, backend, database, and deployment. I've shipped real products like Sneakertopia (AI platform) and EyewearStream (e-commerce with 50+ variants). My focus is clean, scalable code, clear communication, and on-time delivery. Message me to discuss your project.
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FAQ
Can you integrate an API I don't see listed?
Yes! If it has documentation, I can integrate it. Send me the docs and I'll confirm feasibility.
Do you work with existing codebases?
Both new and existing. Most integration orders are added to existing Node.js/React/Next.js apps.
What if the API changes or breaks after delivery?
I use versioned calls and proper error handling so minor changes won't break things. Maintenance packages available.
Can you set up webhooks for real-time data?
Yes — Standard and Premium include webhook setup with signature verification and reliable event processing.
How do you handle API rate limits?
Rate-limiting middleware, request queuing, and exponential backoff retry logic.
