Thread: How can I use google sign-in on my 3rd party sites just like zoho.com for my visitors

If you head to Email Hosting, CRM, Project Management, Office Suite, Document Management and more and look at the login panel on your right, you can see they are accepting google sign-in as a login alternative for their visitors.

My question's how am I gonna do that for one of my sites? I have searched on google but it always turns out webmaster tools results rather than the thing I'm looking for.

I guess it will need an API so where can I acquire it?

Thanks!

this is what google says about this issue
Privacy Concerns : About the Sign in Request page - Google Accounts Help
hope this helps

Thanks! Got it cleared on some of the other forums, it's actually openID.