---
title: Delete a Message Batch
url: https://platform.claude.com/docs/en/api/php/beta/messages/batches/delete
---

# Delete a Message Batch

`$client->beta->messages->batches->delete(string messageBatchID, ?list<AnthropicBeta> betas, ?string workspaceID): DeletedMessageBatch`

**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://platform.claude.com/docs/en/build-with-claude/batch-processing?sdk_languages=php)

## Parameters

- `messageBatchID: string` (path parameter)

  ID of the Message Batch.

- `betas?: optional list<AnthropicBeta>` (header parameter)

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

- `workspaceID?: optional string` (header parameter)

  Optional header to select the Workspace for this request. The value is a Workspace ID (for example, `wrkspc_011CZkZaBF1tNoB5wlCeusgy`).

  Only needed for credentials that can act on more than one Workspace. A credential that belongs to a specific Workspace may omit it; if sent, it must match that Workspace.

## Returns

- `class DeletedMessageBatch`

  - `"message_batch_deleted" type`

    Deleted object type.

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

  - `string id`

    ID of the Message Batch.

## Example

```php
<?php

require_once dirname(__DIR__) . '/vendor/autoload.php';

use Anthropic\Client;
use Anthropic\Beta\AnthropicBeta;

$client = new Client(apiKey: 'my-anthropic-api-key');

$betaDeletedMessageBatch = $client->beta->messages->batches->delete(
  'message_batch_id',
  betas: [AnthropicBeta::MESSAGE_BATCHES_2024_09_24],
  workspaceID: 'wrkspc_011CZkZaBF1tNoB5wlCeusgy',
);

var_dump($betaDeletedMessageBatch);
```

### Response (200)

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