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.
Mexican Tax & Banking - Tool - OpenSmartRoute
Toolv1.0.1
Mexican Tax & Banking
Validate RFC, CURP, CLABE and NSS, read CFDI 4.0 invoices and check their SAT status. No keys.