nCino named the nCino Mortgage API as the standard integration platform for nCino Mortgage, replacing the legacy SimpleNexus API (SNAPI). The new framework carries modern authentication, versioning, webhooks and developer tooling. SNAPI is now in maintenance mode: it remains supported and no sunset date has been announced, but nCino states it is adding no new endpoints or functionality to it and that all new development happens in the nCino Mortgage API.
Our readEngineering teams building any new nCino Mortgage integration should build on the new API. Existing SNAPI integrations keep working, but nCino has put the platform on notice, so anything started on SNAPI today carries a migration later. Authentication, authorization and payloads differ substantially between the two.