# Party programs: screen

URL: /code/mcp/party/verbs · Id: `page:code/mcp/party/verbs`

> The Party Verbs screen as MCP do programs, with inputs, result, refusals and an example.

Reference for [Party](/business/nouns/party), one group of [Party programs](/code/mcp/party).

### Party.screen
Screen checks a Party against official registers and restricted-party lists and keeps the result as a Screening. [Verb page](/business/nouns/party/screen?interface=mcp).

```text
do: return await $.Party.screen(input)
```

Emits [`Party.screened`](/business/events/Party.screened).

**Inputs**

| Input | Type | Required | Description |
| --- | --- | --- | --- |
| `party` | [Party](/business/nouns/party) | Yes | The Party to check: a Customer, Supplier, Partner or the Company’s own owners. |
| `markets` | list of [Market](/business/nouns/market) | No | The Markets whose lists apply. Defaults to the Party’s and the Startup’s Markets. |

**Returns**

| Output | Type | Required | Description |
| --- | --- | --- | --- |
| `screening` | [Screening](/business/nouns/screening) | Yes | The Screening, with the lists checked, their versions, any matches and the outcome. |
| `party` | [Party](/business/nouns/party) | Yes | The Party screened. |

**Refuses when**

| Check | Error | Fix | Then call |
| --- | --- | --- | --- |
| The key is valid, but its scopes do not allow this operation. | [`forbidden`](/code/api/errors/forbidden) | Use a key whose scopes cover the operation, or ask an owner of the namespace to grant them. | None. |

**Example**

```json
{
  "name": "do",
  "arguments": {
    "code": "return await $.Party.screen({ party: 'party_hmQWaPrAyZ' })"
  }
}
```