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

# Knowledge Bases

> Understanding knowledge bases on the Ardie marketplace

## What is a Knowledge Base?

A **knowledge base** on Ardie is a curated collection of documents that has been processed and indexed for semantic search and question answering. Each knowledge base is published by a supplier and made available through the Ardie marketplace.

## Knowledge Base Structure

Every knowledge base includes:

| Field               | Description                                                         |
| ------------------- | ------------------------------------------------------------------- |
| **Title**           | The name of the knowledge base                                      |
| **Publisher**       | The organization or individual who created and maintains it         |
| **Category**        | Primary classification (Education, Policy, Health, Research, Legal) |
| **Tags**            | Additional labels for filtering and discovery                       |
| **Summary**         | Brief overview of what the knowledge base contains                  |
| **Description**     | Detailed information about coverage and use cases                   |
| **Documents Count** | Number of source documents indexed                                  |
| **Vectors Count**   | Number of vector embeddings (indicates depth of indexing)           |
| **Coverage Notes**  | Specific details about what topics are covered                      |
| **Language**        | Primary language of the content                                     |
| **Licence**         | Terms under which the content is provided                           |

## Categories

Knowledge bases are organized into categories:

<CardGroup cols={2}>
  <Card title="Education" icon="graduation-cap">
    Curriculum standards, educational research, teaching resources
  </Card>

  <Card title="Policy" icon="landmark">
    Government regulations, policy documents, compliance guides
  </Card>

  <Card title="Health" icon="heart-pulse">
    Medical research, clinical guidelines, health information
  </Card>

  <Card title="Research" icon="flask">
    Academic papers, scientific studies, research datasets
  </Card>

  <Card title="Legal" icon="scale-balanced">
    Legal documents, case law, regulatory frameworks
  </Card>
</CardGroup>

## Quality Indicators

When evaluating a knowledge base, consider:

* **Subscribers Count** — How many users have purchased access
* **Query Volume** — Total queries processed (indicates active usage)
* **Updated At** — When the knowledge base was last updated

<Tip>
  High subscriber counts and query volumes often indicate a well-maintained, valuable knowledge base.
</Tip>

## Next Steps

<Card title="Browse the Marketplace" icon="store" href="/marketplace/browsing">
  Learn how to find and filter knowledge bases
</Card>