curl --request POST \
  --url https://app.moltsets.com/mcp/ \
  --header 'Authorization: Bearer YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
    "jsonrpc": "2.0",
    "method": "tools/call",
    "params": {
      "name": "enrich_phone",
      "arguments": {
        "linkedin_url": "https://linkedin.com/in/john-smith-123"
      }
    }
  }'

{
    "jsonrpc": "2.0",
    "id": null,
    "result": {
        "content": [
            {
                "type": "text",
                "text": "{\"phone\":\"+15553568032\",\"type\":\"mobile\",\"source\":\"stub\"}"
            }
        ],
        "isError": false
    }
}