Send SMS from Claude, Cursor, or Windsurf using Model Context Protocol
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
Send SMS messages via connected Android devices
Retrieve full SMS conversation threads with specific phone numbers
List online and available connected Android phones
Works with Claude Desktop, Cursor, and Windsurf
Node.js-based standalone server with no npm install required
Multi-device support for message routing
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
Natural language commands in plain English for AI assistants
Uses your personal Android phone as an SMS gateway
Minimal setup with just configuration paste and restart
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
Android Texter
RFCCheck