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

# Overview

> The essential APIs for feeding and querying memories in MemoryLake

MemoryLake turns your documents and conversations into searchable, structured memories. These four APIs are the core of that capability.

## How It Works

<Steps>
  <Step title="Set up your environment">
    Before using the core APIs, create the required resources:

    1. [Create a Workspace](/features/memorylake/api-reference/workspaces/create-workspace) — the namespace that isolates your data
    2. [Create an Actor](/features/memorylake/api-reference/actors/create-actor) — the identity representing your end user
    3. [Create a Project](/features/memorylake/api-reference/v3-projects/create-project) — the container for documents, conversations, and facts
  </Step>

  <Step title="Feed memories">
    Import knowledge into a project through two channels:

    * **Documents** — upload files to the [Library](/features/memorylake/api-reference/library/overview), then [import them](/features/memorylake/api-reference/v3-documents/import-documents) into a project. MemoryLake indexes the content for semantic search.
    * **Conversations** — [create a conversation](/features/memorylake/api-reference/conversations/create-conversation), then [append messages](/features/memorylake/api-reference/conversations/create-message). MemoryLake automatically extracts structured facts from the exchange.
  </Step>

  <Step title="Query memories">
    [Search](/features/memorylake/api-reference/search/search-memories) across all memory sources in a workspace using natural language. Results include matched document passages and extracted facts.
  </Step>
</Steps>

## Core APIs

<CardGroup cols={2}>
  <Card title="Import Documents" icon="file-import" href="/features/memorylake/api-reference/v3-documents/import-documents">
    Import files from the Library into a project for indexing.
  </Card>

  <Card title="Create Conversation" icon="comments" href="/features/memorylake/api-reference/conversations/create-conversation">
    Start a new conversation in a project to capture interactions.
  </Card>

  <Card title="Append Message" icon="message" href="/features/memorylake/api-reference/conversations/create-message">
    Add a message to a conversation. Facts are extracted automatically.
  </Card>

  <Card title="Search Memories" icon="magnifying-glass" href="/features/memorylake/api-reference/search/search-memories">
    Query documents and facts across a workspace with natural language.
  </Card>
</CardGroup>