MCP Catalog
Browse 5,639 Model Context Protocol servers · npmClear
Calypso multimodal RAG for grounded answers from docs, images, charts, and knowledge.
Arabic formatting: 22 Arab currencies (Saudi riyal U+20C1), Hijri dates, تفقيط, RTL/bidi fixes.
Redfin real-estate for Claude — search, property details, market reports, saved homes
Neo4j-native DIKW memory for Claude Code — knowledge that compounds across sessions
Autonomous DeFi yield for AI agents on Base. Query APY, simulate splits, manage treasury.
MCP server for managing Coalesce Transform workspaces, nodes, pipelines, and runs.
Keyless prediction-market data across 8 venues plus paper-trading of crypto spot, futures, and PM.
MCP server for the Open Archives genealogical search engine.
AI output validation with 6-dimension checks and self-healing failover across 9+ LLM providers.
Search and retrieve bioRxiv and medRxiv preprints — by DOI, date interval, or keyword — via MCP.
Search US court opinions, federal dockets, judges, citations, and oral arguments via CourtListener.
Look up genes, fetch sequences, predict variant consequences, find orthologs and xrefs via Ensembl.
Guardian Open Platform — search and retrieve full article text from The Guardian archive.
MCP server for Project Gutenberg — 75,000+ public-domain ebooks with full plain-text retrieval.
Search LOC digital collections, Chronicling America newspapers (full OCR), and LC Subject Headings.
Search NOAA CDO stations and datasets, fetch historical weather observations.
Search NOAA climate stations and datasets, fetch historical weather observations.
Geocode, reverse geocode, and run Overpass spatial queries on OpenStreetMap data.
MCP server for nonprofit financials via ProPublica — IRS Form 990 data for 1.8M+ nonprofits.
Global weather via Open-Meteo: forecast, ERA5 archive, marine, air quality, geocoding, elevation.
Access FEC campaign finance data. Query data about candidates, money trails, and election filings.
Geocode, reverse geocode, and run Overpass spatial queries on OpenStreetMap data.
Researcher profiles, works, affiliations, funding, and peer reviews from the ORCID registry.
MCP server for US Treasury Fiscal Data — debt, interest rates, exchange rates, and spending.