# meta_upload_ad_image

> Upload an image into the selected ad account using base64 bytes (up to 5 MiB decoded).

[Documentation](https://www.getmcpads.com/docs) / [Sources](https://www.getmcpads.com/docs/sources) / [Meta Ads](https://www.getmcpads.com/docs/sources/meta-ads)

Upload an image into the selected ad account using base64 bytes (up to 5 MiB decoded). Preview reports size only, never the file body. Local preview by default. No automatic retry. Account ownership is checked before Meta validation or mutation.

> **Warning** This tool changes the account. It is absent from the tool list on the Free plan, and it previews by default: without `confirm: true` it describes the change and applies nothing.

|  |  |
| --- | --- |
| Source | [Meta Ads](https://www.getmcpads.com/docs/sources/meta-ads) |
| Kind | Write |
| Discovery | Reachable through `search_tools` and `run_tool` |
| Account parameter | `adAccountId` |
| Endpoint | https://mcp.getmcpads.com/meta-ads/mcp |

## Parameters

| Name | Type | Required | Notes |
| --- | --- | --- | --- |
| `adAccountId` | string | Required | Selected owning ad account ID, with or without act_. Every referenced ad object must belong to it. |
| `bytesBase64` | string | Required | Base64 media bytes without a data-URL prefix. Maximum decoded size 5 MiB; omitted from preview output. |
| `confirm` | boolean | Optional | Apply only when true. Default is a local preview with no API mutation. |
| `validateOnly` | boolean | Optional | Ask Meta to validate, without creating or changing an object. Mutually exclusive with confirm. |

## Calling it

Through run_tool, since it is not announced

```json
{
  "name": "run_tool",
  "arguments": {
    "name": "meta_upload_ad_image",
    "args": {
      "adAccountId": "<string>",
      "bytesBase64": "<string>"
    }
  }
}
```

- [Meta Ads metrics](https://www.getmcpads.com/docs/sources/meta-ads/metrics): What you can ask for.
- [Meta Ads dimensions](https://www.getmcpads.com/docs/sources/meta-ads/dimensions): How you can break it down.

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