{"name":"Send SMS (Textbelt)","description":"Send a text message (SMS) to any phone number via Textbelt. No phone number purchase or carrier registration needed -messages sent from a shared pool. Input: `to` (E.164 phone number like +12125551234), `body` (message text, max 1600 chars). Returns: message status, quota remaining, and text ID for tracking. Accepts x402 USDC payments - no API key needed."}