## Update a memory store

`$client->beta->memoryStores->update(string memoryStoreID, ?string description, ?array<string,string> metadata, ?string name, ?list<AnthropicBeta> betas): BetaManagedAgentsMemoryStore`

**post** `/v1/memory_stores/{memory_store_id}`

Update a memory store

### Parameters

- `memoryStoreID: string`

- `description?:optional string`

  New description for the store, up to 1024 characters. Pass an empty string to clear it.

- `metadata?:optional array<string,string>`

  Metadata patch. Set a key to a string to upsert it, or to null to delete it. Omit the field to preserve. The stored bag is limited to 16 keys (up to 64 chars each) with values up to 512 chars.

- `name?:optional string`

  New human-readable name for the store. 1–255 characters; no control characters. Renaming changes the slug used for the store's `mount_path` in sessions created after the update.

- `betas?:optional list<AnthropicBeta>`

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

### Returns

- `BetaManagedAgentsMemoryStore`

  - `string id`

    Unique identifier for the memory store (a `memstore_...` tagged ID). Use this when attaching the store to a session, or in the `{memory_store_id}` path parameter of subsequent calls.

  - `\Datetime createdAt`

    A timestamp in RFC 3339 format

  - `string name`

    Human-readable name for the store. 1–255 characters. The store's mount-path slug under `/mnt/memory/` is derived from this name.

  - `Type type`

  - `\Datetime updatedAt`

    A timestamp in RFC 3339 format

  - `?\Datetime archivedAt`

    A timestamp in RFC 3339 format

  - `?string description`

    Free-text description of what the store contains, up to 1024 characters. Included in the agent's system prompt when the store is attached, so word it to be useful to the agent. Empty string when unset.

  - `?array<string,string> metadata`

    Arbitrary key-value tags for your own bookkeeping (such as the end user a store belongs to). Up to 16 pairs; keys 1–64 characters; values up to 512 characters. Returned on retrieve/list but not filterable.

### Example

```php
<?php

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

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

$betaManagedAgentsMemoryStore = $client->beta->memoryStores->update(
  'memory_store_id',
  description: 'description',
  metadata: ['foo' => 'string'],
  name: 'x',
  betas: ['message-batches-2024-09-24'],
);

var_dump($betaManagedAgentsMemoryStore);
```

#### Response

```json
{
  "id": "id",
  "created_at": "2019-12-27T18:11:19.117Z",
  "name": "name",
  "type": "memory_store",
  "updated_at": "2019-12-27T18:11:19.117Z",
  "archived_at": "2019-12-27T18:11:19.117Z",
  "description": "description",
  "metadata": {
    "foo": "string"
  }
}
```
