Public API and MCP servers for Texas used-car data
Validate Mexican RFC numbers via API
Stage
Not given
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Founded
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Based in
US
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Pricing model
Free
Freemium
Pricing
Not given
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
Key features
NHTSA recall and complaint data
EPA fuel economy data
Model and year endpoints
Batch requests (up to 20)
MCP servers for JSON-RPC 2.0
Pagination support
RFC 9457 error handling
OpenAPI 3.1 specification
Pages as Markdown for agents
Local stdio MCP server
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
What makes it different
No authentication required
Free with no API key needed
Official MCP Registry listed
Deprecation warnings 6 months ahead
Data from verified official sources
Directly connected to SAT database for real-time validation
Supports both individual and business RFC numbers with automatic type detection
Shared account and balance with CURP and voter ID validation services
Hunt Auto Group Texas
RFCCheck