## Create a memory

`$client->beta->memoryStores->memories->create(string memoryStoreID, ?string content, string path, ?ManagedAgentsMemoryView view, ?list<AnthropicBeta> betas): ManagedAgentsMemory`

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

Create a memory

### Parameters

- `memoryStoreID: string`

- `content: string`

  UTF-8 text content for the new memory. Maximum 100 kB (102,400 bytes). Required; pass `""` explicitly to create an empty memory.

- `path: string`

  Hierarchical path for the new memory, e.g. `/projects/foo/notes.md`. Must start with `/`, contain at least one non-empty segment, and be at most 1,024 bytes. Must not contain empty segments, `.` or `..` segments, control or format characters, and must be NFC-normalized. Paths are case-sensitive.

- `view?:optional ManagedAgentsMemoryView`

  Query parameter for view

- `betas?:optional list<AnthropicBeta>`

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

### Returns

- `ManagedAgentsMemory`

  - `string id`

    Unique identifier for this memory (a `mem_...` value). Stable across renames; use this ID, not the path, to read, update, or delete the memory.

  - `string contentSha256`

    Lowercase hex SHA-256 digest of the UTF-8 `content` bytes (64 characters). The server applies no normalization, so clients can compute the same hash locally for staleness checks and as the value for a `content_sha256` precondition on update. Always populated, regardless of `view`.

  - `int contentSizeBytes`

    Size of `content` in bytes (the UTF-8 plaintext length). Always populated, regardless of `view`.

  - `\Datetime createdAt`

    A timestamp in RFC 3339 format

  - `string memoryStoreID`

    ID of the memory store this memory belongs to (a `memstore_...` value).

  - `string memoryVersionID`

    ID of the `memory_version` representing this memory's current content (a `memver_...` value). This is the authoritative head pointer; `memory_version` objects do not carry an `is_latest` flag, so compare against this field instead. Enumerate the full history via [List memory versions](/docs/en/api/beta/memory_stores/memory_versions/list).

  - `string path`

    Hierarchical path of the memory within the store, e.g. `/projects/foo/notes.md`. Always starts with `/`. Paths are case-sensitive and unique within a store. Maximum 1,024 bytes.

  - `Type type`

  - `\Datetime updatedAt`

    A timestamp in RFC 3339 format

  - `?string content`

    The memory's UTF-8 text content. Populated when `view=full`; `null` when `view=basic`. Maximum 100 kB (102,400 bytes).

### Example

```php
<?php

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

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

$betaManagedAgentsMemory = $client->beta->memoryStores->memories->create(
  'memory_store_id',
  content: 'content',
  path: 'xx',
  view: ManagedAgentsMemoryView::BASIC,
  betas: ['message-batches-2024-09-24'],
);

var_dump($betaManagedAgentsMemory);
```

#### Response

```json
{
  "id": "id",
  "content_sha256": "content_sha256",
  "content_size_bytes": 0,
  "created_at": "2019-12-27T18:11:19.117Z",
  "memory_store_id": "memory_store_id",
  "memory_version_id": "memory_version_id",
  "path": "path",
  "type": "memory",
  "updated_at": "2019-12-27T18:11:19.117Z",
  "content": "content"
}
```