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

# Product

> What Extruct AI does and which workflow to start with.

## What Extruct AI does

Extruct AI is a company discovery and research platform for finding, enriching, and evaluating companies.

## Start from your use case

### Lookalike Search

Find companies similar to a known company.

* [Guide](/api-guides/search/lookalike-search)
* [API endpoint](/api-reference/lookalike-search)

### Semantic Search

Find companies from natural-language intent.

* [Guide](/api-guides/search/semantic-search)
* [API endpoint](/api-reference/search)

### Deep Search

Run async discovery tasks for precision candidate evaluation against explicit criteria.

* [Guide](/api-guides/search/deep-search)
* [API endpoints](/api-reference/discover/create-company-discovery-task)

### AI Tables

Run repeatable enrichment and ranking pipelines.

* [Guide](/api-guides/ai-tables/ai-table-basics)
* [API endpoints](/api-reference/tables/create-table)

## Authentication

Create API tokens in [Dashboard API Tokens](https://app.extruct.ai/api-tokens). For setup details, see [Authentication](/api-reference/authentication).

## Entry points

* Default docs entry: [Introduction](/)
* Workflow guides: [Introduction](/)
* Endpoint catalog: [API Reference Introduction](/api-reference/introduction)