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Introduction

The ISVIX API allows you to send and receive SMS messages globally, verify phone numbers, and manage your account programmatically. Our API is built on REST principles and uses standard HTTP status codes.

Authentication

Authenticate your requests by including your API Key in the Authorization header. You can manage your API keys in the Dashboard.

curl -X POST "https://api.isvix.com/v1/messages" \
     -H "Authorization: Bearer YOUR_API_KEY" \
     -H "Content-Type: application/json" \
     -d '{
           "to": "+1234567890",
           "text": "Hello from ISVIX!"
         }'

Response Format

All responses are returned in JSON format. Successful requests return a 2xx status code.

{
  "id": "msg_123456789",
  "status": "queued",
  "to": "+1234567890",
  "created_at": "2025-10-24T10:00:00Z"
}