I will develop rest API and API integrate for your web and mobile app


About this gig
Need a reliable API developer to connect your website web app or mobile application with the services you use?
I will develop and integrate REST APIs for your project making sure your application can communicate smoothly with database third-party platforms, and other services.
I can help with custom REST API development third-party API integration authentication JSON data handling database connections, API testing, debugging, and fixing existing API issues.
What I can do:
- REST API development
- API integration
- Third-party API integration
- Custom API endpoints
- Authentication and authorization
- JSON and data handling
- Database integration
- API testing and debugging
- API error fixing
- Web and mobile app API integration
I focus on clean implementation, reliable connections, and making sure everything works properly with your existing system.
Whether you need a new REST API built from scratch or need to connect an existing API to your website or application send me your requirements and I will help you get it set up.
Message me before ordering so I can review your project and recommend the right solution.
Get to know John
delicious food
- FromUnited Kingdom
- Member sinceMar 2026
- Avg. response time1 hour
Languages
English
FAQ
What type of API can you develop?
I can develop REST APIs and integrate third-party APIs for websites, web applications, and mobile apps.
Can you integrate an existing API?
Yes. I can connect existing APIs to your website, web app, or mobile application and make sure the data is transferred correctly.
Can you create a custom REST API?
Yes, I can build custom REST APIs based on your project requirements, including endpoints, authentication, and database connections.
Can you fix API errors?
Yes. I can troubleshoot API errors, connection problems, authentication issues, and incorrect responses.
Do you work with third-party APIs?
Yes. I can integrate APIs from different third-party services, depending on their documentation and access requirements.

