A date-and-subject feed of preprints, not a keyword search.

Researchers tracking a field get new preprints by subject and time window, and can see which ones a journal has since published.

What it is

A connector Anthropic built and runs at hcls.mcp.claude.com, which reads preprint data from bioRxiv and medRxiv. Preprints are research papers posted before peer review. It needs no sign-in and no key.

What you get

Preprint lists by subject and date range, from either bioRxiv or medRxiv
Full details for one preprint by its DOI: abstract, authors, funding, license and a PDF link
Preprints that later appeared in a journal, filterable by publisher
Preprints backed by a named funder such as NIH or the Wellcome Trust
The 27 bioRxiv subject categories, to pick the right filter
Monthly or yearly bioRxiv submission and readership figures

Requirements

An MCP client that can reach a remote address. In Claude you add it under Settings > Connectors. In Claude Code you can install it as a plugin from Anthropic's life-sciences marketplace. Funder searches reach back only to 2025-04-10.

Setup effort

Paste a URL — add the endpoint to your client