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

# MemoryContext

> Granular identifiers for scoping memories to specific users, sessions, or agents.

## Overview

`MemoryContext` provides an additional layer of segmentation within a project. While `ProjectContext` handles broad isolation, `MemoryContext` allows you to track and retrieve data for specific entities or conversation threads.

***

## Properties

| Property     | Type     | Description                                                              |
| :----------- | :------- | :----------------------------------------------------------------------- |
| `user_id`    | `string` | **Optional.** The ID of the end-user associated with the memory.         |
| `session_id` | `string` | **Optional.** A unique ID for a specific conversation session or thread. |
| `agent_id`   | `string` | **Optional.** The ID of the specific AI agent instance.                  |
| `group_id`   | `string` | **Optional.** An ID used to group related entities or users.             |

***

## Usage Example

```typescript theme={null}
import { MemoryContext } from '@memmachine/client';

const userSession: MemoryContext = {
  user_id: 'user_99',
  session_id: 'chat_hash_abc123'
};
```