Hi @Anonymous,
Basically, as long as your company is generating less than $100,000/year (or equivalent).
From the Terms of Service:
You may use the service if You are (i) a company generating less than $100,000 (or equivalent in other currency) per year working on a project or product that is not yet commercially available, (ii) an individual working on a project or product that is not yet commercially available and is generating less than $100,000 (or equivalent in other currency) per year
Does that answer your question?
Best,
Kate

What kind of papers do startup need to prove?
Thanks & Bgs
Hi @Anonymous - this is on good faith to follow our terms, no papers needed unless there is an issue.