SMS Validator — Mobile & SMS Readiness Check

SMS-capable phone validation API for AI agents. Verify if a phone number can receive SMS messages: mobile vs landline detection, carrier type identification, E.164 format normalization, and SMS delivery readiness. Tools: sms_validate_number. Use this BEFORE sending SMS notifications, 2FA codes, or marketing messages. Saves cost by filtering out landlines and invalid numbers. For general phone validation without SMS check, use phone_validate_number instead. Returns: {smsCapable, lineType, carrier, e164}. No API key required — x402 micropayment $0.002/call on Base L2.

How to connect

https://server.smithery.ai/axel-belfort/sms-validator/mcp

curl -X POST https://server.smithery.ai/axel-belfort/sms-validator/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{}}'