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

# Struct API Documentation

> Create 3D simulations from text prompts with our powerful spatial intelligence APIs

<img className="block dark:hidden" src="https://vects.ai/static/world_lens_map_simulator_tool.jpg" alt="Struct Hero Light" />

<img className="hidden dark:block" src="https://vects.ai/static/world_lens_map_simulator_tool.jpg" alt="Struct Hero Dark" />

## Welcome to Struct

Struct provides **realtime spatial intelligence** APIs that enable you to create immersive 3D simulations directly from text prompts. Our platform combines advanced AI with geospatial data to deliver powerful simulation capabilities for various use cases.

<CardGroup cols={2}>
  <Card title="Text to 3D Simulation" icon="cube" href="/api-reference/simulation/text-to-3d">
    Generate complete 3D simulations from natural language descriptions
  </Card>

  <Card title="Risk Analysis" icon="shield-exclamation" href="/api-reference/risk/route-analysis">
    Assess risks along routes and within geographic areas
  </Card>

  <Card title="Urban Mobility MARL" icon="car" href="/api-reference/marl/websocket-overview">
    Multi-agent reinforcement learning for urban mobility simulations
  </Card>

  <Card title="WebSocket Interface" icon="bolt" href="/api-reference/marl/websocket-overview">
    Real-time communication for dynamic simulation control
  </Card>
</CardGroup>

## Getting Started

<CardGroup cols={2}>
  <Card title="Quick Start Guide" icon="rocket" href="/quickstart">
    Get up and running with Struct APIs in minutes
  </Card>

  <Card title="Authentication" icon="key" href="/authentication">
    Learn how to authenticate and manage your API keys
  </Card>
</CardGroup>

## Core Features

* **Text-to-Simulation**: Transform natural language into interactive 3D environments
* **Risk Assessment**: Analyze potential threats and hazards along routes or within areas
* **Real-time Updates**: WebSocket support for live simulation updates
* **Multi-agent Systems**: Advanced MARL models for urban mobility scenarios
* **Geospatial Intelligence**: Leverage real-world geographic data and elevation models