How much does RFC validation cost?

Plans are denominated in credits. Basic costs $99/month for 10,000 credits (~1,000 /validate calls), Growth costs $449/month for 60,000 credits, and Pro costs $1,800/month for 300,000 credits. Enterprise volume pricing is available on request. Extra credits cost $0.015 USD each with no plan required; prepaid balance works too. The /sat-lists endpoint is free on any plan and pay-as-you-go callers pay 1 credit per call. New users get a $5 USD signup bonus.

Does RFCCheck work with both individual and business RFCs?

Yes. RFCCheck validates both persona física (individual, 13-character) and persona moral (business, 12-character) RFC numbers. The API automatically detects the RFC type and queries the appropriate SAT records.

What happens when I exceed my monthly API limit?

When your monthly plan credits are exhausted, requests start drawing from your prepaid balance at $0.015 USD per credit. If neither has capacity, the API returns 402 (Payment Required). You can add prepaid balance from your dashboard to continue making requests without upgrading your plan.

What does the API return for an RFC validation?

The API returns whether the RFC is valid and registered with SAT, the official taxpayer name, the postal code, an array of digital certificates (CSD/FIEL) with their serial numbers, validity dates, active/revoked status, contact email, legal representative RFC and CURP, and the base64-encoded .cer file, plus a list of SAT published contributor lists (Articles 69, 69-B, 69-B Bis) the RFC appears in, if any.

Fact sheet · APIs & SDKs

RFCCheck

Validate Mexican RFC numbers via API

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Overview

Screenshot of the RFCCheck homepage — What rfccheck.com looks like

RFCCheck is a REST API that validates Mexican RFC (Registro Federal de Contribuyentes) numbers against the SAT database in real-time. The API returns registration status, the registered taxpayer name, and digital certificate information including serial numbers, validity dates, status, contact email, legal representative RFC and CURP, and the base64-encoded certificate.

The service supports validation of both individual (persona física, 13-character) and business (persona moral, 12-character) RFC numbers. It includes seven endpoints for different use cases: full validation, taxpayer profiles, postal code lookup, quick verification, compliance checking against SAT contributor lists, bulk verification of up to 5000 records, and commerce registry lookups.

Users can access the API through flexible pricing models including monthly credit plans (Basic, Growth, Pro, Enterprise) or pay-as-you-go rates at $0.015 USD per credit. New users receive a $5 USD signup bonus.

Feature facts

Full RFC validation with registration status, name, postal code, and digital certificates
Taxpayer profile lookup with personal data and contact information
Postal code lookup for CFDI invoicing
Quick verification with single SAT roundtrip in 1-2 seconds
Compliance checking against SAT contributor lists (Articles 69, 69-B, 69-B Bis)
Bulk verification of up to 5000 records in one call
Digital certificate lookup with serial numbers and validity dates
Commerce registry lookup for company legal regime and shareholders

Pricing

Pricing model: Freemium

Pay as you go: $0.015 USD per credit (prepaid, no subscription). Monthly plans: Basic $99/month for 10,000 credits, Growth $449/month for 60,000 credits, Pro $1,800/month for 300,000 credits. Enterprise: volume pricing available on request. /sat-lists endpoint is free on any plan. New users get $5 U

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RFCCheck specifications

Specifications of RFCCheck
Section	APIs & SDKs
Website	rfccheck.com
Votes²	0

RFCCheck metrics

Fact file for rfccheck.com: Ahrefs Domain Rating and Majestic link facts, each with the change since the last fact check.
Metric	Value
Domain Rating	37 no change since last check
Trust Flow	0 no change since last check
Citation Flow	25 no change since last check
Referring domains	3 no change since last check
External backlinks	145 no change since last check

Fact: Ahrefs Domain Rating checked 12 Nov 2026, fact changed 9 Nov 2026. Fact: Majestic checked 9 Nov 2026, fact changed 9 Nov 2026. Link facts from Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.

RFCCheck domain fact sheet

Open the fact sheet

Read from the public RDAP record on 12 Nov 2026, 10:30 UTC.
Domain age	7 months
Registered	4 Apr 2026
Expires	4 Apr 2027
Registrar	Cloudflare, Inc.
DNSSEC	Signed

Every domain fact for rfccheck.com

RFCCheck launch receipt sheet

What we have measured for RFCCheck since it went live on SaaS Directory Info on 9 November 2026.

37 Domain Rating (Ahrefs) no change since launch
at launch: 37 (9 Nov 2026); latest: 11 Nov 2026
0 Trust Flow (Majestic)
first measured 9 Nov 2026
3 Referring domains (Majestic)
first measured 9 Nov 2026

Day 3 since launch. Next receipt: day 30, 9 Dec 2026. The figures report a change; they do not say what caused it, and many things can. No figure here is a guess.

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Frequently looked up

Q1What is RFCCheck?: RFCCheck is a REST API that validates Mexican RFC (Registro Federal de Contribuyentes) numbers against the SAT database in real-time. It returns registration status, the registered taxpayer name, and digital certificate information including serial numbers, validity dates, status, contact email, legal representative RFC and CURP, and the base64-encoded certificate.
Q2How much does RFC validation cost?: Plans are denominated in credits. Basic costs $99/month for 10,000 credits (~1,000 /validate calls), Growth costs $449/month for 60,000 credits, and Pro costs $1,800/month for 300,000 credits. Enterprise volume pricing is available on request. Extra credits cost $0.015 USD each with no plan required; prepaid balance works too. The /sat-lists endpoint is free on any plan and pay-as-you-go callers pay 1 credit per call. New users get a $5 USD signup bonus.
Q3Does RFCCheck work with both individual and business RFCs?: Yes. RFCCheck validates both persona física (individual, 13-character) and persona moral (business, 12-character) RFC numbers. The API automatically detects the RFC type and queries the appropriate SAT records.
Q4What happens when I exceed my monthly API limit?: When your monthly plan credits are exhausted, requests start drawing from your prepaid balance at $0.015 USD per credit. If neither has capacity, the API returns 402 (Payment Required). You can add prepaid balance from your dashboard to continue making requests without upgrading your plan.
Q5What does the API return for an RFC validation?: The API returns whether the RFC is valid and registered with SAT, the official taxpayer name, the postal code, an array of digital certificates (CSD/FIEL) with their serial numbers, validity dates, active/revoked status, contact email, legal representative RFC and CURP, and the base64-encoded .cer file, plus a list of SAT published contributor lists (Articles 69, 69-B, 69-B Bis) the RFC appears in, if any.

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