SnapAPI Screenshot Response

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/snapapi/main/json-schema/snapapi-screenshot-response-schema.json",
  "title": "SnapAPI Screenshot Response",
  "description": "Describes the binary screenshot response and the usage signaling headers returned by POST /api/screenshot. The response body itself is raw PNG or JPEG image data; this schema models the metadata surface.",
  "type": "object",
  "properties": {
    "contentType": {
      "type": "string",
      "enum": ["image/png", "image/jpeg"],
      "description": "MIME type of the returned image."
    },
    "headers": {
      "type": "object",
      "properties": {
        "X-Usage-Used": {
          "type": "integer",
          "minimum": 0,
          "description": "Number of requests used this calendar month."
        },
        "X-Usage-Limit": {
          "type": "integer",
          "minimum": 0,
          "description": "Total monthly request allowance for the API key's tier."
        }
      }
    },
    "body": {
      "type": "string",
      "contentEncoding": "base64",
      "description": "Binary image content (PNG or JPEG)."
    }
  }
}