SMS Send API — IteraTools

About this tool

Send SMS messages programmatically via Twilio's carrier network. Phone numbers must be in E.164 format (e.g. +5548999999999). Messages longer than 160 characters are automatically split into multiple segments (each billed separately). Pricing varies by destination: USA/CA is $0.012/SMS; Brazil and international numbers are $0.018/SMS.

Quick Start

curl -X POST https://api.iteratools.com/sms/send \
  -H "Authorization: Bearer YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "to": "+5548999999999",
    "message": "Hello from IteraTools!"
  }'

Response

{
  "sid": "SM37495683eff1bbaed770dae2c2e03ce0",
  "to": "+5548999999999",
  "from": "+15005550006",
  "status": "queued",
  "segments": 1,
  "price_tier": "BR"
}

Request Body

Field	Type	Description
`to` required	string	Recipient phone in E.164 format (e.g. `+5548999999999`)
`message` required	string	SMS text. 160 chars = 1 segment. Longer messages split automatically.

Pricing

Destination	Price per SMS segment
🇺🇸 USA / 🇨🇦 Canada (+1)	$0.012
🇧🇷 Brazil (+55) / 🌍 International	$0.018

Payments via x402 micropayment on Base (USDC). Each SMS segment billed separately.