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# PubMed

**Authentication:** API key. See [Magic Link](/merge-agent-handler/features/magic-link) for the runtime auth flow.

## Sample use cases

* Find papers on GLP-1 agonists and weight loss published in the last 6 months.
* Search for clinical trials on aducanumab cited in JAMA.
* List the top 20 most-cited oncology papers from 2025.

## Available Tools

#### match\_citations

Match partial citation information to PubMed IDs.

#### fetch\_articles

Fetch full article data (title, abstract, authors, journal, DOI) by PMIDs.

#### get\_database\_info

Get information about NCBI databases.

#### find\_related\_articles

Find articles related to given PMIDs using PubMed's similarity algorithm. Can also find links between databases (e.g., PubMed to PMC, PubMed to Gene). Returns scored results by relevance.

#### search\_pubmed

Search PubMed for biomedical articles by keywords, authors, dates, or MeSH terms.

#### get\_article\_summaries

Get quick document summaries for multiple PMIDs. Faster than fetch\_articles but with less detail. Returns title, authors, journal, publication date, and identifiers. Max 500 IDs per request.