Baserow makes it easy to build an API from CSV data quickly and easily. With a few clicks, you can generate APIs, but first:
→ Get data into a Baserow database from a CSV file.
→ Create a database token.
→ Use the API docs to create an API.
Let’s begin 
https://baserow.io/blog/how-to-easily-create-rest-api-from-a-csv-file.