> For the complete documentation index, see [llms.txt](https://helpcenter.paperguide.ai/llms.txt).
> Use it to discover all available pages before exploring further.

# Search Papers

Find papers on any topic and look up a paper by DOI or PubMed ID from your AI assistant.

## Find papers on a topic

Ask a research question or name a topic. Your assistant searches Paperguide's database of 200M+ papers and shows the matching papers with title, authors, journal, year, citation count, abstract, and DOI.

- "Find recent papers on intermittent fasting and cardiovascular outcomes."
- "What are the most cited papers on graph neural networks since 2020?"
- "Find open-access papers on microplastics in drinking water."

<Callout kind="tip" collapsed="false">
  You can narrow a search by year, minimum citations, open access, or whether a PDF is available. Just say so in your request.
</Callout>

## Look up one paper

Give your assistant a DOI or PubMed ID, or point at a paper from a previous search. It fetches the full details, including a ready-to-use BibTeX entry.

- "Get the details for 10.1038/s41586-020-2649-2."
- "Look up PubMed ID 30935407 and give me the BibTeX."
- "Open the third paper from that search."

## Tips

- **Ask follow-up questions.** Your assistant keeps the papers it found in the conversation, so you can ask it to compare them, summarise them, or pick the most relevant.
- **Save papers to your library.** Ask your assistant to add a paper from the results to your reference manager; it saves the details and fetches the PDF. See [Reference Manager](/mcp/reference-manager).

<Callout kind="info" collapsed="false">
  Papers you already saved are searched with [Reference Manager](/mcp/reference-manager), not here.
</Callout>

Searching and looking up papers use AI credits. See [Credits](/mcp/credits).