Have you thought about supporting additional auth providers? Or providing a way for other auth services to add support for their products?
corral add provider github Under the hood, Corral is built on Better Auth, which has a plugin architecture. Any Better Auth plugin works with Corral — so if someone builds a provider plugin for Better Auth, it automatically works here too. We're not reinventing auth crypto, just making it agent-installable.
On the crypto payments front — that's actually a great use case for Corral's plugin model. The billing layer is modular (Stripe today, but the gating/metering layer doesn't care where the payment event comes from). A BTC/USDC payment plugin that fires the same "user upgraded to plan X" event would slot right in. Interesting idea.