curl --request POST \
  --url https://api.iotools.cloud/v1/tool/otp-code-generator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "mode": "totp",
  "secret": "GEZDGNBVGY3TQOJQGEZDGNBVGY3TQOJQ",
  "algorithm": "sha1",
  "digits": "8",
  "timestamp": "59",
  "period": "30"
}
'

{
  "tool": "otp-code-generator",
  "tool_version": "1.0.1",
  "outputs": {
    "code": "94287082",
    "counterUsed": "1",
    "secondsRemaining": "1"
  },
  "credits_used": 3,
  "credits_remaining": null
}