curl -X GET "https://scrape.st/telegram/channel/-10012345678/participants/search?q=alex&limit=20" \
  -H "x-api-key: YOUR_API_KEY"

{
  "total": 50,
  "participants": [
    {
      "id": "123456789",
      "username": "alex_dev",
      "firstName": "Alex",
      "lastName": "Smith",
      "rank": "admin",
      "joinDate": 1714567890
    }
  ]
}