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WhatsApp Number Validator

Check if a phone number is registered on WhatsApp.

Configure MCP server with WhatsApp Number Validator

Access the WhatsApp Number Validator action from AI tools via MCP. Your AI assistant can check WhatsApp availability for any phone number on demand.

MCP server configuration

Add this to your MCP client configuration (Claude Desktop, Cursor, Windsurf, or any MCP-compatible tool):

json
{
  "mcpServers": {
    "syncgtm": {
      "type": "http",
      "url": "https://api.syncgtm.com/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_API_KEY"
      }
    }
  }
}

Example prompt

Check if +14155551234 has an active WhatsApp account.

Example response

json
{
  "has_whatsapp": true,
  "display_name": "John Smith",
  "profile_picture_url": "https://pps.whatsapp.net/v/...",
  "phone_number": "+14155551234"
}

Learn more about Enrichment MCP

SyncGTM Enrichment MCP gives AI tools direct access to 75+ enrichment and signal actions. Explore all MCP actions →