> ## Documentation Index
> Fetch the complete documentation index at: https://docs.agentfront.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# MemoryStorageAdapter

> In-memory storage adapter API reference

In-memory storage adapter (default, no persistence).

## Constructor

```ts theme={"theme":{"light":"snazzy-light","dark":"dark-plus"}}
constructor(config?: StorageAdapterConfig)
```

### StorageAdapterConfig

```ts theme={"theme":{"light":"snazzy-light","dark":"dark-plus"}}
interface StorageAdapterConfig {
  namespace?: string;
}
```

| Option      | Type     | Default     | Description                 |
| ----------- | -------- | ----------- | --------------------------- |
| `namespace` | `string` | `'default'` | Namespace (for consistency) |

## Example

```ts theme={"theme":{"light":"snazzy-light","dark":"dark-plus"}}
import { VectoriaDB, MemoryStorageAdapter } from 'vectoriadb';

const db = new VectoriaDB({
  storageAdapter: new MemoryStorageAdapter({ namespace: 'tools' }),
});

// Or simply omit storageAdapter - MemoryStorageAdapter is the default
const db = new VectoriaDB();
```

## Behavior

* **No persistence**: Data is lost on restart
* **No cache validation**: `hasValidCache()` always returns `false`
* **Fast**: No I/O overhead

## Methods

| Method                    | Description                 |
| ------------------------- | --------------------------- |
| `initialize()`            | No-op                       |
| `load()`                  | Returns stored data or null |
| `save(data)`              | Stores data in memory       |
| `hasValidCache(metadata)` | Always returns `false`      |
| `clear()`                 | Clears stored data          |
| `close()`                 | Clears stored data          |

## Use Cases

* Development and testing
* When re-indexing is fast enough
* Serverless functions with bundled embeddings

## Related

<CardGroup cols={3}>
  <Card title="FileStorageAdapter" icon="file" href="/vectoriadb/api-reference/storage-adapters/file-adapter">
    File storage
  </Card>

  <Card title="RedisStorageAdapter" icon="database" href="/vectoriadb/api-reference/storage-adapters/redis-adapter">
    Redis storage
  </Card>

  <Card title="Storage Guide" icon="floppy-disk" href="/vectoriadb/guides/storage/memory-adapter">
    Memory adapter guide
  </Card>
</CardGroup>