That said, the pricing worries me a bit. This is a tool we'd have to build on top of. Which means that if it disappears later because you went out of business (or just changed your pricing in some way that hosed us), we'd have a whole big, unexpected engineering project to rewrite our SSO.
And given that you're giving a hosted product away for free, it seems pretty likely that you will either eventually go out of business or change your pricing.
I know it sounds silly, but as someone who'll probably have to add SSO to my current project in the next 6-12 months, I'd be a lot more comfortable betting on you if you had a sustainable-sounding paid tier other than "free for now" and "idk email us." It'd certainly make it easier to pitch to the rest of my team. :)
How do you expect people to bootstrap an infra SaaS? I just don’t see how you can seriously attempt something like an Auth0 competitor startup without any money. I mean it’s nice to not take VC money but you are going to be broke for a long long time - and you still have the same failure rate as with VC.
So you need to be super masochistic to work for nothing for years with a 99% of everything will evaporate at any point - and at the same time somehow convince companies to build on your stack - not only build on it but make it the gatekeeper and front door of everything. I can tell you that you will have an extremely hard time to get any customers for this, regardless of how great the tech is.
Maybe you don’t need it at seed stage - but unless you are fantastically rich already you need some investment to get beyond seed stage IMHO.