Issue in API Testing

I have created and build my API project, now I want to test it, how can I do it (on Swagger)

Replit Profile:

Hi @aiindia1008 !
Can you send a link to your repl?
What issues are you facing?
Also, what do you mean by wanting to test it? Can’t you do it here on Replit?
I want to test API on Swagger or other such tools

can you suggest how I can move forward? I am stuck here.