curl --request POST \
  --url https://sitegpt.ai/api/v2/chatbots/{chatbotId}/knowledge/files \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "files": [
    {
      "name": "<string>",
      "contentBase64": "<string>",
      "mimeType": "<string>"
    }
  ],
  "metadata": {}
}
'

{
  "ok": true,
  "data": {
    "document": {
      "id": "document-id",
      "name": "Example document",
      "createdAt": "2026-05-13T00:00:00.000Z"
    }
  },
  "meta": {
    "requestId": "request-id"
  }
}