> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mem0.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

> REST APIs for memory management, search, and entity operations

## Mem0 REST API

Mem0 provides a comprehensive REST API for integrating advanced memory capabilities into your applications. Create, search, update, and manage memories across users, agents, and custom entities with simple HTTP requests.

<Info>
  **Quick start:** Get your API key from the <a href="https://app.mem0.ai/dashboard/api-keys?utm_source=oss&utm_medium=api-reference" rel="nofollow">Mem0 Dashboard</a> and make your first memory operation in minutes.
</Info>

***

## Quick Start Guide

Get started with Mem0 API in three simple steps:

1. **[Add Memories](/api-reference/memory/add-memories)** - Store information and context from user conversations
2. **[Search Memories](/api-reference/memory/search-memories)** - Retrieve relevant memories using semantic search
3. **[Get Memories](/api-reference/memory/get-memories)** - Fetch all memories for a specific entity

***

## Core Operations

<CardGroup cols={2}>
  <Card title="Add Memories" icon="plus" href="/api-reference/memory/add-memories">
    Store new memories from conversations and interactions
  </Card>

  <Card title="Search Memories" icon="magnifying-glass" href="/api-reference/memory/search-memories">
    Find relevant memories using semantic search with filters
  </Card>

  <Card title="Update Memory" icon="pen" href="/api-reference/memory/update-memory">
    Modify existing memory content and metadata
  </Card>

  <Card title="Delete Memory" icon="trash" href="/api-reference/memory/delete-memory">
    Remove specific memories or batch delete operations
  </Card>
</CardGroup>

***

## API Categories

Explore the full API organized by functionality:

<CardGroup cols={2}>
  <Card title="Memory APIs" icon="microchip" href="/api-reference/memory/add-memories">
    Core and advanced operations: CRUD, search, batch updates, history, and exports
  </Card>

  <Card title="Events APIs" icon="clock" href="/api-reference/events/get-events">
    Track and monitor the status of asynchronous memory operations
  </Card>

  <Card title="Entities APIs" icon="users" href="/api-reference/entities/get-users">
    Manage users, agents, and their associated memory data
  </Card>

  <Card title="Organizations & Projects" icon="building" href="/api-reference/organizations-projects">
    Multi-tenant support, access control, and team collaboration
  </Card>

  <Card title="Webhooks" icon="webhook" href="/api-reference/webhook/create-webhook">
    Real-time notifications for memory events and updates
  </Card>
</CardGroup>

<Note>
  **Building multi-tenant apps?** Learn about [Organizations & Projects](/api-reference/organizations-projects) for team isolation and access control.
</Note>

***

## Authentication

All API requests require authentication using Token-based authentication. Include your API key in the Authorization header:

```bash theme={null}
Authorization: Token <your-api-key>
```

Get your API key from the <a href="https://app.mem0.ai/dashboard/api-keys?utm_source=oss&utm_medium=api-reference" rel="nofollow">Mem0 Dashboard</a>.

<Warning>
  **Keep your API key secure.** Never expose it in client-side code or public repositories. Use environment variables and server-side requests only.
</Warning>

***

## Next Steps

<CardGroup cols={2}>
  <Card title="Add Your First Memory" icon="rocket" href="/api-reference/memory/add-memories">
    Start storing memories via the REST API
  </Card>

  <Card title="Search with Filters" icon="filter" href="/api-reference/memory/search-memories">
    Learn advanced search and filtering techniques
  </Card>
</CardGroup>