---
title: List Work Items
url: https://platform.claude.com/docs/en/api/php/beta/environments/work/list
---

# List Work Items

`$client->beta->environments->work->list(string environmentID, ?int limit, ?string page, ?list<AnthropicBeta> betas): PageCursor<SelfHostedWork>`

**GET** `/v1/environments/{environment_id}/work`

Note: these endpoints are called automatically by the pre-built environment worker provided in the SDKs and CLI, for orchestrating sessions with self-hosted sandbox environments. They are included here as a reference; you do not need to invoke them directly.

List work items in an environment.

## Parameters

- `environmentID: string` (path parameter)

- `limit?: optional int` (query parameter)

  Maximum number of work items to return

  default: 20

- `page?: optional string` (query parameter)

  Opaque cursor from previous response for pagination

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

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

## Returns

- `class SelfHostedWork`

  - `"work" type`

    The type of object (always 'work')

  - `string id`

    Work identifier (e.g., 'work_...')

  - `?string acknowledgedAt`

    RFC 3339 timestamp when the work item was acknowledged and assigned to a self-hosted sandbox

  - `string createdAt`

    RFC 3339 timestamp when work was created

  - `SessionWorkData data`

    The actual work to be performed

  - `string environmentID`

    Environment identifier this work belongs to (e.g., `env_...`)

  - `?string latestHeartbeatAt`

    RFC 3339 timestamp of the most recent heartbeat

  - `array<string,string> metadata`

    User-provided metadata key-value pairs associated with this work item

  - `?string secret`

    Credential payload used by the environment worker to execute this work item. May be populated when polling for work; null on all other retrieval paths.

  - `?string startedAt`

    RFC 3339 timestamp when work execution started

  - `State state`

    Current state of the work item

  - `?string stopRequestedAt`

    RFC 3339 timestamp when stop was requested

  - `?string stoppedAt`

    RFC 3339 timestamp when work execution stopped

## 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');

$page = $client->beta->environments->work->list(
  'env_011CZkZ9X2dpNyB7HsEFoRfW',
  limit: 1,
  page: 'page',
  betas: [AnthropicBeta::MESSAGE_BATCHES_2024_09_24],
);

var_dump($page);
```

### Response (200)

```json
{
  "data": [
    {
      "id": "id",
      "acknowledged_at": "acknowledged_at",
      "created_at": "created_at",
      "data": {
        "id": "id",
        "type": "session"
      },
      "environment_id": "environment_id",
      "latest_heartbeat_at": "latest_heartbeat_at",
      "metadata": {
        "foo": "string"
      },
      "secret": "secret",
      "started_at": "started_at",
      "state": "queued",
      "stop_requested_at": "stop_requested_at",
      "stopped_at": "stopped_at",
      "type": "work"
    }
  ],
  "next_page": "next_page"
}
```