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

# Worldly Developer Docs

> Build integrations with the Worldly API to access sustainability data for your supply chain.

## Welcome

The Worldly API gives you programmatic access to environmental and social impact data across your supply chain — including facility assessments, product-level impacts, material sustainability scores, and more.

<CardGroup cols={2}>
  <Card title="Getting Started" icon="rocket" href="/documentation/getting-started">
    Set up your API credentials and make your first request.
  </Card>

  <Card title="Authentication Guide" icon="key" href="/documentation/authentication-guide">
    Learn how to authenticate with the Worldly API using API keys and request tokens.
  </Card>

  <Card title="Base URLs & Environments" icon="globe" href="/documentation/base-urls">
    Production and demo base URLs for every API.
  </Card>

  <Card title="API Reference" icon="code" href="/api-reference/assessments/overview">
    Explore all available endpoints across Assessments, PIC, MSI, and Product Module APIs.
  </Card>

  <Card title="Recipes" icon="book-open" href="/recipes/get-ghg-data-verified-fems">
    Step-by-step cookbook guides for common API workflows.
  </Card>
</CardGroup>

## API groups

| API                | Description                                                                                                               |
| ------------------ | ------------------------------------------------------------------------------------------------------------------------- |
| **Assessments**    | Retrieve facility assessment data (FEM, FDM, FSLM, BRM), bulk CSV exports, performance data, file data, and module shares |
| **PIC**            | Product Impact Calculator — create products, manage purchase orders, link facilities, calculate impacts                   |
| **MSI**            | Material Sustainability Index — search, create, and update materials with impact scores                                   |
| **Product Module** | Search, create, and update products with bill-of-materials and certifications                                             |

## Legacy Higg API

If you are using the legacy (v0.1) version of the Higg API, switch to **v0.1 (Legacy)** using the version selector at the top of this page for authentication and URI guidance.