curl --request POST \
  --url https://api.iotools.cloud/v1/tool/dns-zone-file-generator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "domain": "example.com",
  "primaryNs": "ns1.example.com",
  "adminEmail": "admin@example.com",
  "serial": "2024010101",
  "records": "@ A 192.0.2.1\nwww CNAME example.com\n@ MX 10 mail.example.com\n@ TXT v=spf1 include:_spf.example.com ~all"
}
'

{
  "tool": "dns-zone-file-generator",
  "tool_version": "1.0.1",
  "outputs": {
    "zoneOutput": "; Zone file for example.com\n; Generated by IO Tools DNS Zone File Generator\n;\n$TTL 3600\n$ORIGIN example.com.\n\n@\tIN\tSOA\tns1.example.com. admin.example.com. (\n\t2024010101\t; Serial\n\t3600\t; Refresh\n\t900\t; Retry\n\t1209600\t; Expire\n\t86400\t; Minimum TTL\n)\n\n; DNS Records\n@\tIN\tA\t192.0.2.1\nwww\tIN\tCNAME\texample.com.\n@\tIN\tMX\t10\tmail.example.com.\n@\tIN\tTXT\t\"v=spf1 include:_spf.example.com ~all\"\n"
  },
  "credits_used": 3,
  "credits_remaining": null
}