Is that possible to remotely login to Netsuite and read its data without an API call ? for example customer will login to the system like Wordpress or Magento...with same info as Netsuite...we want them to login to Netsuite remotely and read data through web scrapping without API call..is that possible ?

Simple answer is no, but really, I don’t think you’re stating the requirements clearly. Why the aversion to API calls?

Also, you might land into trouble doing scraping of data.

someone was asking me about it .. i also thought that it wont be possible . just asked out of curiosity