You will get RESTful API Integration for Web & Mobile Applications


Project details
Are you looking to seamlessly connect your web or mobile app with powerful backend services? I specialize in RESTful API integration that ensures smooth, secure, and efficient communication between your frontend and any external or custom backend systems.
💡 Here’s what you get:
🔗 Reliable and secure API connections with proper authentication (API keys, OAuth, tokens)
⚙️ Integration of all necessary REST endpoints (GET, POST, PUT, DELETE) tailored to your app’s features
🛠️ Clean, maintainable code with robust error handling and data validation
📱 Compatibility with web apps, React Native, or any mobile platform
🔍 Thorough testing with tools like Postman to guarantee flawless data flow
📚 Well-documented integration for easy future updates and maintenance
🚀 Whether you’re connecting to third-party services like Stripe, Firebase, or custom backend APIs—I’ll make your app dynamic, responsive, and ready to scale.
Let’s build an integrated app that powers your business growth!
💡 Here’s what you get:
🔗 Reliable and secure API connections with proper authentication (API keys, OAuth, tokens)
⚙️ Integration of all necessary REST endpoints (GET, POST, PUT, DELETE) tailored to your app’s features
🛠️ Clean, maintainable code with robust error handling and data validation
📱 Compatibility with web apps, React Native, or any mobile platform
🔍 Thorough testing with tools like Postman to guarantee flawless data flow
📚 Well-documented integration for easy future updates and maintenance
🚀 Whether you’re connecting to third-party services like Stripe, Firebase, or custom backend APIs—I’ll make your app dynamic, responsive, and ready to scale.
Let’s build an integrated app that powers your business growth!
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$250
|
Standard
$450
|
Advanced
$900
|
|---|---|---|---|
| Delivery Time | 3 days | 7 days | 20 days |
Number of Revisions | 1 | 2 | 4 |
Number of Pages | 3 | 5 | 15 |
Design Customization | |||
Content Upload | - | - | |
Responsive Design | |||
Source Code | - |
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AW
Abdul W.
Dec 1, 2025
Front-End Developer for Small Task
AA
Ahmad A.
Oct 21, 2025
CSS Expert Needed for Mobile Text Overflow Fix
Muhazzab delivered a truly pixel,perfect website and went above and beyond to resolve a design issue. Although new to Upwork, his work reflects strong experience and professionalism. Excellent quality, clear communication, and highly recommended.
About Muhazzab
AI Frontend Developer Next.js & React OpenAI Claude & LLM Integration
100%
Job Success
Lahore, Pakistan - 4:11 pm local time
Core Stack
- React.js, Next.js, TypeScript, Tailwind CSS, ShadCN, Zustand, React Query, Vercel AI SDK
AI Integration
- OpenAI API, Anthropic Claude API, streaming UIs, RAG frontends, LLM-powered chat interfaces, prompt UI, vector search, Supabase, Clerk
What I Build
- AI chatbot interfaces with streaming, memory and file uploads
- RAG frontends for document Q&A and knowledge base apps
- SaaS MVPs from idea to deployed product
- AI dashboards and admin panels for LLM-based tools
- Figma-to-code conversion with pixel-perfect accuracy
> Background
100+ projects delivered across SaaS, e-commerce, fintech and healthcare. I pick the right model for the job. OpenAI for broad integrations, Claude for precision coding and document-heavy applications and build the UI layer that makes it usable.
Clean code. Reliable delivery. No hand-holding required.
Steps for completing your project
After purchasing the project, send requirements so Muhazzab can start the project.
Delivery time starts when Muhazzab receives requirements from you.
Muhazzab works on your project following the steps below.
Revisions may occur after the delivery date.
API & Project Review
Authentication Setup