Research MCP Servers for Gemini CLI

50+ biomedical data sources in one MCP server — PubMed, ClinVar, gnomAD, KEGG, and more

Search and retrieve bioRxiv and medRxiv preprints by DOI, date interval or keyword.

EBI BioSamples MCP.

MCP server for generating Scopus ISSN queries based on journal rankings (ABDC, AJG, FT50)

Search books and authors across Open Library, the Internet Archive open catalog.

MCP server for querying BrainKB, a knowledge base for neuroscience knowledge graphs.

Brazil Comex Stat MCP — Brazilian foreign trade statistics from MDIC

Web research across search, Reddit, YouTube, reviews and ad libraries, with line-numbered citations

VC and startup intelligence: AI VC Finder, deal sourcing, deck analysis and market data.

Fintech companies, products, investors, funding rounds, news, podcast. Free, keyless, CC BY 4.0.

Carbon footprints for products, carts, receipts and files — with one-step offsetting.

Findings on what compounds and supplements do in the body, with evidence strength, quote and paper.

Verify official facts with Bitcoin-anchored proof. 180+ signals, x402 pay-per-call.

China Air Quality MCP — nationwide hourly AQI from CNEMC (China National Environmental Monitoring Centre).

Look up investment statistics by year or country and region.

CIA World Factbook MCP — country profiles from The World Factbook.

Citation Style Language locale shape, body discarded

Citation-health over a CC0 citation graph: what supports, refutes, or cites a paper. Read-only.

CIViC — Clinical Interpretation of Variants in Cancer.

Civil twilight hour-band UTC

Systematic medical reviews and evidence-based healthcare research