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

# Introduction

> Paperzilla integration surfaces: MCP, RSS/Atom feeds, and CLI access.

export const AiAgents = ({path}) => <Tip>
    <b>AI agents</b>: This page is available as <a href={path + '.md'}>markdown</a>. See also the <a href="/llms.txt">docs index</a> and <a href="/llms-full.txt">full docs</a>.
  </Tip>;

<AiAgents path="/api-reference/introduction" />

Paperzilla is primarily consumed through product surfaces:

* Web app project feed
* Email digests
* RSS/Atom feed URLs
* CLI (`pz`)
* MCP endpoint (`/api/mcp`)

This API reference section documents public integration surfaces for feeds and MCP.

Paper metadata can come from preprint servers or PubMed-indexed biomedical and clinical literature. A source landing-page URL is available for PubMed records, while `pdf_url` can be `null` when no public PDF is known.

## Start points

* [MCP endpoint](/api-reference/mcp)
* [RSS/Atom feed endpoint](/api-reference/rss-atom-feed)
* [RSS and Atom guide](/guides/feeds)
* [CLI guide](/guides/cli)