# McpExternalOperation

A tool that calls an MCP connector.

**Kind:** an object, used in responses.

## Fields

Every field is present in a response; empty ones are `null`.

| Field | Type | Description |
|---|---|---|
| `versions` | [`McpExternalOperationVersion`](https://docs.maitento.com/reference/types/mcp-external-operation-version.md)`[]` | Every version of the tool, oldest first. |
| `name` | `string` | The tool's name, unique within its namespace. The model calls the tool by this name unless a binding renames it. |
| `namespaceId` | `uuid` | The id of the namespace it belongs to. |
| `tenantId` | `uuid` | The id of the tenant it belongs to. |
| `id` | `uuid` | The unique id. Use it in `by-id` routes and wherever another object refers to this one. |
| `dateCreated` | `datetime` | When it was created, in UTC. |
| `dateUpdated` | `datetime` | When it was last changed, in UTC. |

## Example

```json
{
  "versions": [
    {
      "connectorId": "3f2b8c1e-5d4a-4e6b-9c7d-2a1b0c9d8e7f",
      "connectorVersion": 0,
      "requestBindings": [],
      "authenticationHeader": {},
      "promptGuidance": "...",
      "requiresApproval": false,
      "version": 0,
      "date": "2026-10-26T12:00:00.0000000Z",
      "isDisabled": false
    }
  ],
  "name": "...",
  "namespaceId": "3f2b8c1e-5d4a-4e6b-9c7d-2a1b0c9d8e7f",
  "tenantId": "3f2b8c1e-5d4a-4e6b-9c7d-2a1b0c9d8e7f",
  "id": "3f2b8c1e-5d4a-4e6b-9c7d-2a1b0c9d8e7f",
  "dateCreated": "2026-10-26T12:00:00.0000000Z",
  "dateUpdated": "2026-10-26T12:00:00.0000000Z"
}
```

## Where it's used

- [`tools.createMcp`](https://docs.maitento.com/reference/api/tools.md) (`POST /namespaces/{namespaceName}/external-operations/mcp`)
- Inside [`BuildEntityOfMcpExternalOperation`](https://docs.maitento.com/reference/types/build-entity-of-mcp-external-operation.md)
- Inside [`ExternalOperation`](https://docs.maitento.com/reference/types/external-operation.md)