Your phone as an API for SMS, calls, recordings and transcripts
Validate Mexican RFC numbers via API
Stage
Not given
Not given
Founded
Not given
Not given
Based in
NO
Not given
Pricing model
Paid
Freemium
Pricing
Monthly subscription per connected line (exact price not specified in documentation). Recording and transcription are optional, charged from prepaid credits at rates shown in workspace. Credits are in US dollars and never expire while workspace is active.
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 up to 1,600 characters
Receive incoming SMS and calls as webhook events
Outgoing calls with WebRTC audio for browser or AI
Idempotent messaging with operation status tracking
Model Context Protocol server for Claude and Cursor
Included bridge minutes per month
Conversation scoping per line and number
API rate limiting and fair-use enforcement
Dual-SIM support with separate credentials per line
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
Use your own Android phone and SIM instead of a phone number service
Pay only per connected line; recording and transcription are optional and prepaid
Calls merged on bridge preserve your business number to recipients
Live AI voice support via WebRTC audio tracks
Every resource reports whether it is real or simulated
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
RFCCheck