Ask HN: API SaaS Data Use?

		Ask HN: API SaaS Data Use?
		2 points by matheiafto on Oct 26, 2015 \| hide \| past \| favorite

		If any of the site I want to use does not have an API. Is it legal to use there website data to create an API from it and offer it as SaaS or do I have to ask owner permission first ?