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

# Introduction

> Get started with the Penbox API

Welcome to the Penbox API documentation. Build powerful integrations for form management, workflow automation, and document processing.

## Quick Start

<Steps>
  <Step title="Get an API Token">
    Login to [app.penbox.io/workspace/settings/api](https://app.penbox.io/workspace/settings/api) and create a new API token.

    [Learn about Authentication →](/api-reference/authentication)
  </Step>

  <Step title="Make Your First Request">
    Use your token to authenticate API requests:

    ```bash theme={null}
    curl https://connect.penbox.io/v1/workspaces \
      -H "Authorization: Bearer YOUR_ACCESS_TOKEN"
    ```
  </Step>

  <Step title="Explore the API">
    Browse available endpoints and try them in the interactive documentation.
  </Step>
</Steps>

## API Essentials

**Base URL:** `https://connect.penbox.io/v1`

**Authentication:** All requests require a Bearer token in the `Authorization` header.

**Rate Limits:**

* 100 requests per minute per token
* 1,000 requests per hour per client

## Available Resources

<CardGroup cols={2}>
  <Card title="Workspaces" icon="building" href="/api-reference/workspaces/list-workspaces">
    List authorized workspaces
  </Card>

  <Card title="Cases" icon="folder-tree" href="/api-reference/cases/list-cases">
    Create and manage workflow cases with steps
  </Card>

  <Card title="Case Templates" icon="clipboard-list" href="/api-reference/case-templates/list-case-templates">
    Reusable workflow blueprints for creating cases
  </Card>

  <Card title="Forms" icon="file-lines" href="/api-reference/requests/list-requests">
    Create and manage forms, responses, and templates
  </Card>

  <Card title="Attachments" icon="paperclip" href="/api-reference/attachments/get-attachment">
    Upload and download attachments
  </Card>

  <Card title="Document Intelligence" icon="brain" href="/api-reference/document-intelligence/create-document-intelligence">
    Extract structured data from documents using AI
  </Card>

  <Card title="Signatures" icon="signature" href="/api-reference/signatures/get-signature">
    Download and manage digital signatures
  </Card>
</CardGroup>

## Developer Guides

<CardGroup cols={2}>
  <Card title="API Overview" icon="book" href="/api-reference/pen-connect-overview">
    Complete guide to API capabilities and best practices
  </Card>

  <Card title="All Endpoints" icon="list" href="/api-reference/all-endpoints">
    Quick reference of all available endpoints
  </Card>

  <Card title="Authentication" icon="key" href="/api-reference/authentication">
    OAuth2 authentication and token management
  </Card>

  <Card title="Advanced Filters" icon="filter" href="/api-reference/advanced-filters">
    Powerful filtering with operators and JSON queries
  </Card>

  <Card title="Pagination & Sorting" icon="arrows-up-down" href="/api-reference/pagination-and-sorting">
    Control result size and order
  </Card>
</CardGroup>

## Need Help?

* **Documentation**: Browse the detailed guides above
* **Support**: [support@penbox.io](mailto:support@penbox.io)
* **Status**: status.penbox.io