Reliable OTP API for WhatsApp & Telegram
Securely send and verify one-time passwords across multiple messaging platforms. Designed specifically for B2B scale with per-service isolation, robust audit trails, and an administrative customer portal.
# Send OTP over WhatsApp
curl -X POST "https://api.tokenflow.io/v1/otp/send" \
-H "X-API-Key: tf_live_8f3d..." \
-H "Content-Type: application/json" \
-d '{ "phone": "+1234567890", "channel": "whatsapp" }'
# JSON Response
{
"status": "queued",
"otp_id": "otp_7b19dfc2a8",
"channel": "whatsapp",
"created_at": "2026-07-14T16:21:00Z"
}
Engineered for robust integrations
Everything you need to deliver transactional verification codes securely and quickly.
Multi-channel routing
Instantly route security codes through Telegram or WhatsApp through a unified, fast REST endpoint.
Per-service isolation
Each of your apps gets isolated environments: specific API keys, independent rate limits, and specialized audit logs.
Customer dashboard
An intuitive administrative panel for business customers to audit logs, manage services, and monitor delivery analytics.