Hi - I answer from the OpenSmartRoute documentation: routing, the API, plans and quotas, self-hosting. Ask away, or open a support ticket if you need a person.
Grounded in the docs - follow a source before acting on it.
RDAP API - Tool - OpenSmartRoute
Toolv1.2.0
RDAP API
Normalized JSON for any domain across 1,200+ TLDs, reading WHOIS where no RDAP server exists.