Is Flask best for API?

Flask is more battle-tested, therefore slightly more reliable , and it’s widely used. FastAPI is a newer, more modern framework known for its speed with lots of built-in support like Pydantic and SwaggerUI.

“Flask allows Python developers to create lightweight RESTful APIs .”30 Ağu 2021

Flask is ideal for machine learning engineers or developers who want to quickly prototype a web application and build APIs easily and quickly .

Integrating an External API into a Flask Application