Java codes for API

Hi, Can i use eclipse for debugging and compiling my java api codes, or do we have any on line platform where i can do this. I just want to check my codes validity before subscribing for API which is 2000/month?

you can use any best IDE available,
As authentication is required which generates access token , only through this you can check or post / get API responses using kite connect API , so if you want to check the APIs , i think subscription is required