# x_ads_lookup_users

> Resolve X handles to numeric user IDs, for follower look-alike targeting (add_targeting_criterion with targeting_type FOLLOWERS_OF_USER and the ID as…

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

Resolve X handles to numeric user IDs, for follower look-alike targeting (add_targeting_criterion with targeting_type FOLLOWERS_OF_USER and the ID as targeting_value). Needs the users.read and tweet.read permissions on the X connection; without them it says so and names what works instead. Each lookup uses X developer API credits.

> **Note** Connect your own X Ads account and select the advertisers to expose. Free permits reads; Pro, Team and Enterprise permit writes. Reconnect older connections for media.write. X controls account verification and delivery eligibility.

|  |  |
| --- | --- |
| Source | [X Ads](https://www.getmcpads.com/docs/sources/x-ads) |
| Kind | Read |
| Discovery | Reachable through `search_tools` and `run_tool` |
| Account parameter | `account_id` |
| Endpoint | https://mcp.getmcpads.com/x-ads/mcp |

## Parameters

| Name | Type | Required | Notes |
| --- | --- | --- | --- |
| `usernames` | array | Required | X handles, with or without @, up to 100. |

## Calling it

Through run_tool, since it is not announced

```json
{
  "name": "run_tool",
  "arguments": {
    "name": "x_ads_lookup_users",
    "args": {
      "usernames": "<array>"
    }
  }
}
```

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

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