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

# Introduction

> Welcome to the Enrichment API documentation

## Overview

The Enrichment API provides programmatic access to French company search, executive lookup, and data enrichment services. Use it to search companies, find executives, and enrich records with combined data.

## Base URL

All API requests are made to the following base URL:

```
https://search.leads-siren.com/enrichment-service
```

## Key Capabilities

<CardGroup cols={2}>
  <Card title="Company Search" icon="building" href="/api-reference/endpoint/search-companies">
    Search French companies by department, NAF code, legal form, employee count, and more.
  </Card>

  <Card title="Executive Search" icon="user-tie" href="/api-reference/endpoint/search-executives">
    Look up executives (dirigeants) for one or more companies by SIREN number.
  </Card>

  <Card title="Enrich Single" icon="magnifying-glass" href="/api-reference/endpoint/enrich-single">
    Synchronously enrich a single company by its SIREN number.
  </Card>

  <Card title="SIREN Enrich (LPR)" icon="database" href="/api-reference/endpoint/siren-enrich">
    Match Pappers dirigeants against Les Pages Rouges with a confidence score.
  </Card>
</CardGroup>

## Authentication

All secured endpoints require an API key passed in the `x-api-key` header.

<Card title="Get Started" icon="rocket" href="/api-reference/introduction">
  Read the full API introduction and learn how to authenticate.
</Card>