I will build a custom API tailored to your project


About this gig
I will design and develop a custom API tailored exactly to your project requirements.
Whether you need a REST API for a web app, mobile app, internal tool, or third-party integration, I deliver clean, scalable, and well-documented backend solutions.
My Production Process
- Requirement Discussion We clarify your use case, endpoints, and integrations.
- API Design I design a clean and scalable API structure.
- Development Implementation with best practices and clean code.
- Testing Validation, error handling, and edge-case testing.
- Delivery Fully documented API ready for integration.
What I can build
- REST APIs (FastAPI / Flask)
- CRUD APIs
- Authentication & authorization
- Database-backed APIs (PostgreSQL, MySQL, SQLite)
- Third-party API integrations
- API refactoring & bug fixes
What you get
- Clean and maintainable code
- Well-structured project
- Clear API documentation
- Secure and scalable design
- Professional communication
Tech Stack
- Python
- FastAPI / Flask
- SQL / NoSQL databases
- Docker (optional)
- Swagger
If your requirements are not fully covered by the listed packages, feel free to contact me before ordering. Im happy to discuss your use case and provide a custom API setup tailored exactly to
Get to know Daniel
- FromGermany
- Member sinceJul 2025
- Avg. response time7 hours
Languages
English, German
FAQ
What kind of APIs do you develop?
I develop custom REST-APIs and FastAPIs for web apps, mobile apps, internal tools, and integrations.
Can you work with an existing API or codebase?
Yes, I can extend, refactor, or debug existing APIs.
Do you provide documentation?
Yes, all APIs include clear documentation in code or as a PDF. Advanced docs are included in higher packages.
Can you integrate third-party services?
Absolutely. I can integrate external APIs, databases, and services.
What if my requirements don’t fit the packages?
No problem — just contact me and I’ll create a custom solution for your project.
