Research MCP Servers for HTTP / API

IUPHAR/BPS Guide to PHARMACOLOGY (GtoPdb) MCP — BYO key.

Statistics Faroe Islands (Hagstova Føroya) PxWeb MCP.

HealthData.gov MCP. Keyless.

JPL Horizons MCP.

HPO API MCP.

ILOSTAT (International Labour Organization statistics) MCP — global labour

iNaturalist MCP — citizen-science species observations (free, no auth for read-only)

INE Spain (National Institute of Statistics) Tempus3 JSON API MCP.

INEGI MCP — Mexico's national statistics office (INEGI) Indicators API.

INSPIRE-HEP MCP — high-energy physics literature.

Internet Archive (archive.org) item search & metadata MCP.

iss-number MCP — wraps StupidAPIs (keyless — no credential needed)

KEGG REST MCP — Kyoto Encyclopedia of Genes and Genomes.

Lens.org MCP — patent + scholarly platform.

Library of Congress (loc.gov) MCP — the world's largest library.

MAST MCP — Space Telescopes archive.

NLM MeSH (Medical Subject Headings) MCP.

NASA POWER MCP — Prediction of Worldwide Energy Resources

Opendatasoft (generic portal) MCP.

Reactome MCP — open biological pathway knowledge-base.

SBIR MCP — wraps the SBIR.gov public API (free, no auth)