# Preview Image

Previews an image URL in an MCP App window without changing an email. Accepts URLs from the account image library or stock archives; images hosted elsewhere are refused. For an external picture, upload-email-editor-image-from-url copies it into the library first. Requires MCP Apps support to display the image.

## Input schema:

```json
{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "https URL of the image, as a previous image tool returned it",
      "minLength": 12,
      "maxLength": 2000
    }
  },
  "required": [
    "url"
  ],
  "additionalProperties": false
}
```

## Output schema:

```json
{
  "type": "object",
  "required": [
    "url",
    "host",
    "html"
  ],
  "properties": {
    "url": {
      "type": "string"
    },
    "host": {
      "type": "string"
    },
    "html": {
      "type": "string"
    }
  }
}
```