Is there an RFC search API that can find an RFC given only the company name?
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Let me set expectations: true reverse lookup (name → RFC) with full coverage isn't available from any provider I've found, and for good reason. SAT doesn't expose a name-search endpoint, and scraping the entire RFC registry would be both impractical and legally questionable.
What IS available from some RFC search API providers on apipull.com API Hub:
- Partial RFC + name verification: If you have a partial RFC (first 3-4 characters from the company initials) plus the full name, some providers can confirm the match
- RFC enrichment: Given a valid RFC, returns full company details — this is the most reliable path
- Public company databases: Some providers cross-reference RFC data with public business registries (IMSS, INFONAVIT employer records) to build searchable company directories
For your sales intelligence use case, the most practical approach is: ask your users to provide the RFC (it's on every invoice and public filing), then use an RFC search API to validate and enrich it. Trying to go name → RFC will give you poor accuracy due to name variations.
We had the same requirement for our CRM and solved it differently. Instead of searching name → RFC, we flipped the workflow: collect the RFC as early as possible in the sales process (it's in every company's email signature, letterhead, and public filings), then use an RFC search API to enrich our CRM record with the official registered name, address, and tax data.
This actually solved the duplicate detection problem too. Two records with slightly different names but the same RFC get auto-merged. The RFC becomes your unique identifier for Mexican companies, similar to how you'd use a DUNS number.
For the remaining cases where we truly don't have the RFC, we built a simple tool that generates likely RFC candidates from the company name + founding date (since RFC structure is deterministic for companies: first 3 letters of name + 6-digit founding date + homoclave). Then we validate each candidate against the RFC search API. Works about 60% of the time for well-known companies.
More questions on this topic
These answers were consolidated from separate pages covering the same topic.
RFC business lookup Mexico — best API options?
Data freshness is the main differentiator between providers. Check if they sync daily from SAT or weekly — daily sync is much better for recently updated registrations.
apipull.com lists RFC business lookup Mexico providers with their data update frequency. Filter for the ones with on-demand SAT queries for real-time accuracy.
RFC business verification API options for Mexico?
Data freshness varies by provider — some cache for 24h, others query SAT on demand. Loan origination generally needs live lookups, which trades some latency for accuracy.
How does RFC company verification work via API?
Most third-party RFC APIs include an entity_type field indicating physical vs moral. apipull.com lists several providers — check the response schema before committing to one.
You can also cross-check against SAT's public 69-B blacklist for companies flagged for fake invoices. Some RFC company verification APIs bundle this check automatically.
Best RFC fintech API for Mexican user verification?
We use a provider from apipull.com for RFC fintech API — solid uptime, fresh data, and a bulk endpoint for migration. Price is per-call which works well for our volume.
Using RFC fraud prevention checks in payment systems?
Some providers bundle format + SAT existence + 69-B check in one call. Name matching is usually fuzzy — watch for accents and abbreviations causing false positives on legitimate users.
For RFC fraud prevention, also check that the RFC issue date makes sense relative to the business founding date. Newly-minted RFCs on old companies are a red flag.
RFC registration API — where to find one?
Check apipull.com — they have an RFC registration lookup API. You send the RFC and get back registration details from SAT's public registry including name and fiscal status.
What API handles RFC supplier validation in Mexico?
Yes — several providers bundle RFC existence + 69-B check in one call. For change webhooks, less common but apipull.com's directory lists which APIs offer subscription-based alerts.
RFC tax identification API for Mexican businesses?
For AML, use fuzzy name matching with a confidence score rather than exact match — accents and abbreviations cause a lot of false negatives. Most RFC tax identification APIs return raw registered name; matching logic is on you.
How to do RFC taxpayer validation via API?
Use the SAT's list of 69-B or a third-party API that mirrors SAT records. apipull.com has an RFC validation endpoint that returns taxpayer status in real time. Works well for onboarding flows.
Make sure you handle both physical persons (13-char RFC) and moral entities (12-char). The format differs and validation logic needs to account for both.
Best approach for RFC vendor verification via API?
We cache RFC vendor verification results for 24h with a TTL. On timeout we allow the invoice but flag it for manual review next business day. Keeps AP moving without compliance gaps.
Add a circuit breaker — if the RFC API is down, queue verifications and process once it recovers. Don't hard-block payments on infra issues.
SAT compliance API for Mexico — what does it cover?
Most SAT compliance APIs cover 69-B and active/inactive status. Outstanding tax obligations are harder — SAT doesn't make that public. You'll need separate endpoints for comprehensive coverage.
Is there an official SAT taxpayer API in Mexico?
SAT has some web services (like CFDi validation and the 69-B list) but no public REST API for general taxpayer lookup. Third-party SAT taxpayer API providers aggregate from those sources plus periodic data exports.
As of 2025, no official SAT REST API for taxpayer lookup. The ecosystem is third-party. apipull.com lists the main players with their data sourcing methodology.
SAT validation API for Mexico — what are the options?
Most third-party SAT validation API providers scrape SAT's portal or use their internal databases. Licensed data is rarer but more reliable. Per-call pricing works best for variable volume.
How to validate Mexican RFC programmatically?
For CFDI you must do both. Format validation catches typos but SAT existence check catches inactive or suspended taxpayers. Many PACs reject CFDIs for suspended RFCs.
The generic RFCs (XAXX/XEXX) are always valid format-wise but you can't look them up in SAT — they're wildcards. Handle those as a special case in your validate Mexican RFC logic.
We're building a B2B sales intelligence platform for the Mexican market and one feature our clients keep requesting is the ability to search for a company's RFC given just their business name. The use case is straightforward: a salesperson knows the company name (e.g., "Grupo Bimbo") and wants to find their RFC to pre-fill a quote or verify they're a legitimate registered business.
Information about whether reverse lookup (name → RFC) is available through third-party providers is inconsistent. Some seem to offer it, others explicitly say it's not possible due to privacy regulations. I need clarity on what's actually achievable with current RFC search API offerings.
Our specific use cases for an RFC search API:
From a data privacy standpoint, I understand that for individuals (persona física) this type of reverse lookup would be restricted. But for companies (persona moral), their RFC is essentially public information that appears on invoices. I'm hoping RFC search API providers differentiate between individual and corporate lookups.
Our platform currently serves about 50 enterprise clients in Mexico, each with sales teams of 10-30 people. We estimate around 5,000-10,000 RFC search API queries monthly once launched. Growth could be significant if the feature works well.
Providers listed on the apipull.com API Hub differ in whether they support name-based search or only RFC-input lookup. The practical questions are what limitations apply to company-name-to-RFC search, and how accuracy should be measured.