I will build, fix and integrate any API


About this gig
Are you looking for an expert developer to build, fix, or integrate APIs for your web application? I specialize in fast, secure, and clean API development tailored to your exact project needs.
What I Can Do For You:
- API Integration: Connect any 3rd-party API (Stripe, OpenAI, Twilio, SendGrid, WhatsApp, Google Maps, CRMs).
- Custom API Development: Build reliable custom endpoints, webhooks, and data-handling logic.
- Bug Fixing & Debugging: Fix CORS errors, authentication failures, payload mismatch, and broken endpoints.
- Authentication & Security: Secure your APIs using JWT, OAuth2, API Keys, or token authorization.
- Documentation & Testing: Postman collections, OpenAPI/Swagger docs, and detailed code comments.
Tech Stack: Node.js, Express, Python, Next.js, TypeScript, JSON, Webhooks, Postman.
Why Choose Me? Clean, well-documented & scalable code Fast response & on-time delivery Security & performance optimized
Please send me a message before placing an order to discuss your exact technical requirements!
Get to know Ahmad H
Computer Scientist
- FromPakistan
- Member sinceJul 2026
- Avg. response time2 hours
Languages
Urdu, English
FAQ
What information do I need to provide to get started?
I need your project requirements, 3rd-party API documentation or API keys, and temporary access to your repository or codebase if integrating into an existing project.
Will you provide documentation for testing the endpoints?
Yes! Standard and Premium packages include a Postman Collection or interactive Swagger/OpenAPI documentation with ready-to-test sample requests.
Can you fix CORS errors and authentication failures?
Yes. CORS misconfigurations, authorization token bugs, and payload parsing errors are routinely fixed under the Basic package.
Do you deploy the API to a live server?
Deployment is available as a Gig Extra ("API Deployment"). I can host and configure your environment variables on Vercel, Railway, AWS, or DigitalOcean.
