Python developers working with APIs, what does your job actually involve?

I'm curious about the demand for this field, especially in freelancing. How much work is out there, and how profitable can API development be?

What skills and knowledge are essential to confidently take on API development projects?

I asked ChatGPT about this, and it said that Python developers specializing in API development are needed in almost any project, making this field highly in demand. Would you agree?

I'm just starting with Python and trying to choose a clear direction to avoid getting stuck at a crossroads later. I'd really appreciate any insights or advice you can share!