7681 Model Context Protocol servers — searchable, rated, ready to install.
Smithsonian Global Volcanism Program: search Holocene volcanoes, read summaries, eruption years and
Search ORCID researcher profiles, read affiliations and list published works - keyless.
Maven Central: artifact search, versions, group listings, class lookup, dependency snippets.
USGS Water Services: gauge metadata, live readings, daily values and statewide gauge search.
Spaceflight News API v4: 36k+ space articles, full-text search, outlet filter, agency reports.
RxNorm drug concepts: lookup, normalisation, properties, package NDCs, interaction checks, spelling.
ROR: search 110k+ research organizations by name, country and type with stable ids - keyless.
RCSB PDB: search 230k+ structures, read chains, ligands, formulas and citations — keyless.
ip-australia -- Australian patent, trade mark and design search, plus patent legal status, from IP…
World Register of Marine Species: search names, read records, children and full classification.
NCBI Gene records: search by symbol, disease or chromosome and read names, location, aliases and
Search and validate ICD-10-CM diagnosis codes from the US NLM clinical tables - keyless.
NCBI GEO datasets: search transcriptomics and methylation studies and read one dataset in full.
NASA Exoplanet Archive: planet search, system planets, habitable candidates, discovery stats.
Chronicling America: search historical US newspaper pages and titles at the Library of Congress.
11 tools for product data, store discovery and merchant evidence. Free sandbox and x402 payments.
8 focused tools: company profiles, tech, hiring, ads and contacts. Free sandbox and 25-call trials.
Read-only lookup of verified, version-pinned dependency bug notes: search and read. No account.
Per-fact retrieval receipts over fixture source stores; not source truth, not answer faithfulness.
Postal code lookup for 60+ countries: place names, state and coordinates from a ZIP or postcode
Search and read terms across hundreds of biomedical ontologies via the EBI OLS - keyless.
Search, compare and find alternatives across a directory of AI agents, MCP servers and skills.
TheCocktailDB: search 600+ cocktails, full recipes with measures and steps, browse by letter.
Stadia Maps: geocoding, routing, isochrones, static maps and elevation lookups.
POST /mcp