## Delete a Message Batch

`$ ant beta:messages:batches delete`

**delete** `/v1/messages/batches/{message_batch_id}`

Delete a Message Batch.

Message Batches can only be deleted once they've finished processing. If you'd like to delete an in-progress batch, you must first cancel it.

Learn more about the Message Batches API in our [user guide](https://docs.claude.com/en/docs/build-with-claude/batch-processing)

### Parameters

- `--message-batch-id: string`

  ID of the Message Batch.

- `--beta: optional array of AnthropicBeta`

  Optional header to specify the beta version(s) you want to use.

### Returns

- `beta_deleted_message_batch: object { id, type }`

  - `id: string`

    ID of the Message Batch.

  - `type: "message_batch_deleted"`

    Deleted object type.

    For Message Batches, this is always `"message_batch_deleted"`.

### Example

```cli
ant beta:messages:batches delete \
  --api-key my-anthropic-api-key \
  --message-batch-id message_batch_id
```

#### Response

```json
{
  "id": "msgbatch_013Zva2CMHLNnXjNJJKqJ2EF",
  "type": "message_batch_deleted"
}
```