Read-only MCP servers

Search the BnF open catalogue: authors, works, editions and links to what is digitised.

Interactive micro-tools for humans and AI agents — a reference implementation of MCP Apps (SEP-1865) UI cards over Streamable HTTP MCP.

MCP server for IMSLP, the Petrucci Music Library. Read works, scores and recordings. No API key required.

Real-time power grid data for ISO New England, the electricity market and grid operator for Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island and Vermont: wholesale electricity prices, system demand, and electricity generation by fuel type.

KNMI Data Platform (Open Data API) MCP.

Korean national statistics (KOSIS) — browse, search and pull time series from Statistics Korea's official statistical database of ~100,000 tables covering population, prices, employment, trade and industry.

Swiss weather and federal geodata from MeteoSwiss and swisstopo on data.geo.admin.ch — find SwissMetNet automatic weather stations, radar, pollen, ICON forecasts and climate normals, plus elevation and topographic layers, and get the direct CSV, GeoTIFF and NetCDF download URLs for each.

MGnify — EMBL-EBI's metagenomics resource: public microbiome studies, the biome vocabulary they are classified under, and the ~57,000 MAGs and isolate genomes in its species-level genome catalogues, with completeness, contamination and GTDB taxonomy for each.

Real-time electricity data for MISO, the grid operator for 15 US states from Louisiana to Minnesota plus Manitoba: generation by fuel type, power demand, five-minute wholesale electricity prices, wind and solar output, and the transmission constraints driving congestion.

MDN HTTP Observatory — grade any website's HTTP security headers and get the specific fixes, from Mozilla's public scanner.

NASA ADS — the Astrophysics Data System, api.adsabs.harvard.edu.

NASA FIRMS MCP — active-fire / thermal-anomaly detections from MODIS and VIIRS.

NASA GIBS MCP — the satellite-imagery layer catalogue behind Worldview.

NCBI Datasets — the US National Library of Medicine's genome, gene and taxonomy reference service: which assemblies exist for an organism and how good they are, where a gene sits on the genome and what it is called everywhere else, and the NCBI taxonomy tree with per-node assembly and gene counts.

dbSNP refSNP records and HGVS/SPDI/rsID normalization for human genetic variants, from NCBI Variation Services.

NCI Thesaurus concepts and the other cancer-research vocabularies served by NCI Enterprise Vocabulary Services: codes, synonyms, definitions and hierarchy.

Newswire.com MCP — press releases from Newswire's public newsroom feed.

Northern Ireland court and tribunal judicial decisions — judiciaryni.uk.

NOAA CoastWatch — satellite and model ocean data via ERDDAP.

NOAA NCEI MCP — the national climate archive, via the keyless Access services

NOAA NDBC MCP — National Data Buoy Center marine observations

New York Fed Markets Data APIs — markets.newyorkfed.org, keyless JSON, no

Ofgem energy data: the UK energy regulator's published statistics on the domestic price cap and what it is made of, wholesale gas and electricity prices, supplier market shares, switching, debt and customer service — as tabular rows, not pictures.

OFR Short-Term Funding Monitor API — data.financialresearch.gov/v1, keyless,