Does Sugar API v10 support for On-Premises ?

Hello Ajith R, 

Sugar API is available both on Cloud and in OnPremise installations. 

An easy test to check if you are being able to reach the API is to access the URL:

https://<site_url>/rest/v{version}/help.

After that you can start authenticating.

I hope this helps.  

Hello Ajith R, 

Sugar API is available both on Cloud and in OnPremise installations. 

An easy test to check if you are being able to reach the API is to access the URL:

https://<site_url>/rest/v{version}/help.

After that you can start authenticating.

I hope this helps.