linkedin_upload_thumbnail

Upload the custom thumbnail of a video declared with uploadThumbnail, using its signed initialization receipt.

Upload the custom thumbnail of a video declared with uploadThumbnail, using its signed initialization receipt. JPG or PNG, up to 2 MiB decoded. Run it before linkedin_finalize_upload and pass the returned thumbnailReceipt there.

Source: LinkedIn Ads
Kind: Write
Discovery: Reachable through search_tools and run_write_tool
Account parameter: adAccountId
Endpoint: https://mcp.getmcpads.com/linkedin-ads/mcp

Parameters

Parameters
Name	Type	Required	Notes
`adAccountId`	string	Required	Selected LinkedIn advertising account, numeric ID.
`receipt`	string	Required	Signed initialization receipt returned by linkedin_initialize_upload; preserve it exactly.
`bytesBase64`	string	Required	Base64 encoding of the exact required part bytes, up to 8 MiB decoded.
`confirm`	boolean	Optional	Preview unless true. Apply only after explicit approval, in a selected account with native write permission. Default: `false`.

Calling it

json · Through run_write_tool, since it is not announced

{
  "name": "run_write_tool",
  "arguments": {
    "name": "linkedin_upload_thumbnail",
    "args": {
      "adAccountId": "<string>",
      "receipt": "<string>",
      "bytesBase64": "<string>"
    }
  }
}

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