Look up and validate the RFC with the SAT
Generate the Federal Taxpayer Registry with homoclave and validate its fiscal status directly with the SAT. A single integration.
RFC Lookup
Generate the RFC with homoclave from name and date of birth. Official SAT algorithm.
SAT Validation
Query fiscal status directly from the SAT: active, cancelled, regime, and obligations.
How does it work?
One API call. Complete fiscal validation.
Send the query
POST with the customer_id. Singula retrieves or validates the RFC automatically.
SAT query
We verify the RFC directly in the Tax Administration Service records.
Verified result
You receive fiscal status, regime, and whether the RFC is valid and active.
curl -X POST https://api.singula.mx/v1/rfc/validate \
-H "Authorization: Bearer sk_live_..." \
-d '{"customer_id": "cus_lzk9m4ab3f"}'
→ { "rfc": "GARM900315AB1", "valid": true, "status": "active", "regime": "Persona Física" }RFC with homoclave
Generate the complete RFC including the differentiating homoclave.
Fiscal validation
Confirm if the RFC is active, cancelled, or suspended with the SAT.
Real-time status
Direct SAT query with up-to-the-minute information.
Synchronous response
Immediate result. Ideal for validation in onboarding flows.