SuperTokens is an open source authentication solution offering features like: Different types of login: Email / password, Passwordless (OTP or Magic link based).

SuperTokens.com

Hi guys, we've been a very happy customer for almost the last year of SuperTokens, but I can sort of hear rumbling of SSO in the future. Specifically inbound. I understand it's actually a hefty lift, but is there any way that we could hack it with what we have in supertokens or do we have to do something compeltely separate if it comes down to it?

I assume you are talking about enterprise SSO like AD or Okta login.

If so, there is way that we can get it to work today itself, but it’s not a free feature. I’d be happy to discuss pricing and the implementation steps over a call. You can book a call via our website at a time of your convenience.

Yeah, could be an enterprise AD, could be Azure AD or OneLogin or Okta. I will keep it in mind  if it comes up"soon"!