As per monetization, we sell commercial tools that give the look and feel of SaaS management (uptime monitoring, data schema management, integrations with proprietary enterprise systems like ERPs) but allow customers to keep the workflows and sensitive data in their own clouds. It's still early for Spruce (we started full time around last fall), so we are still very hands-on with customers discovering and working through their pain points in implementing credentialing workflows.
Finally, I think technologies like DECO (https://www.deco.works/) are truly going to change the game of verifiable data exports en masse, but I don't expect a production worthy implementation for at least another year or two. They could drastically simplify implementations of user-centric data workflows by reducing the requirement of coordinating multiple stakeholders to just one or two.
How will you monetize your product? I've long followed Evernym and Bloom who set out to tackle part of this problem, but both have seemed to struggle to gain traction and customers. Can you afford to build on this long enough until a market forms that allows for monetizing it?