MCP Server Directory

NWOperational NPI Who io.github.npiwho/npiwho US health care providers by NPI, name or phone, with payments, Medicare, OIG and facility data. 327 ms latency— 24h streamable-http4d ago NOperational NPILayer com.npilayer/npilayer Look up U.S. healthcare providers by NPI, name, specialty and ZIP radius from CMS NPPES data. 644 ms latency— 24h streamable-http3d ago NPOperational npi-providers-mcp-server io.github.cyanheads/npi-providers-mcp-server Search NPPES providers and resolve NUCC specialty codes via MCP over STDIO or Streamable HTTP. 361 ms latency— 24h streamable-http5d ago NCOperational Nplg Catalog io.github.pipeworx-io/nplg-catalog National Parliamentary Library of Georgia MCP — the union catalogue and the digital library, both… 452 ms latency100% 24h streamable-http20h ago NOperational Npm io.github.pipeworx-io/npm npm MCP — wraps the npm Registry API (free, no auth) 1125 ms latency100% 24h streamable-http20h ago NNOperational npm Name Shape io.github.sadri-dridi/npm-name-shape Check an npm package name shape. Name discarded. 187 ms latency— 24h streamable-http5d ago NPDown Npm Package Info Mcp io.github.varvararatta/npm_package_info_mcp Dive into the world of npm with our NPM Package Info MCP. Access crucial metadata about any npm 769 ms latency— 24h streamable-http6d ago NPAuth required npm Package Metadata — Versions, Licenses & Counts io.github.kriton-dev/npm-package-metadata Read latest npm package versions, license tokens and dependency counts 152 ms latency— 24h streamable-http3d ago NROperational npm Release Tracker — new Node.js packages & JavaScript dependency updates (npmwatch) com.a2awire/data-npm-release-node-package-javascript-dependency npm releases: Node package versions, daily. $0.01/query. Register in-session — free testnet funds. 409 ms latency— 24h streamable-http5d ago NSAuth required npm Supply Chain Audit io.github.tylerscomic-lab/npm-supply-chain-audit-mcp Check npm packages for typosquats, hallucinated names, install scripts and risky new releases. 150 ms latency— 24h streamable-http6d ago NPDown npm-package-ws-has-241560546-weekly-downloads-but-sdk io.github.nexus-mcp-infra/npm-package-ws-has-241560546-weekly-downloads-but-sdk Stateful WebSocket session registry with per-connection Shannon entropy delta tracking for schema di 335 ms latency— 24h streamable-http4d ago NOperational NPMScan io.github.salemalem/npmscan Detect malicious or vulnerable npm packages: registry search, OSV.dev and GitHub advisory lookups 340 ms latency— 24h streamable-http6d ago NNAuth required NPPES NPI Registry MCP by usefulapi io.usefulapi/nppes-npi-registry Look up US healthcare providers and organisations by NPI. 90 ms latency— 24h streamable-http6d ago NOperational Nps io.github.pipeworx-io/nps NPS MCP — US National Park Service (free key, generous limits) 392 ms latency100% 24h streamable-http20h ago NDown Nrel io.github.pipeworx-io/nrel NREL MCP — wraps the US National Renewable Energy Laboratory developer API 168 ms latency0% 24h streamable-http20h ago NCAuth required NS1 Connect MCP by usefulapi io.usefulapi/ns1 Read NS1 zones, records, monitors, data feeds and usage; create or update one DNS record. 1335 ms latency— 24h streamable-http6d ago NAOperational Nsf Awards io.github.pipeworx-io/nsf-awards NSF Awards MCP — National Science Foundation award database (free, no auth) 947 ms latency100% 24h streamable-http20h ago NWOperational nsgoods-workbench-mcp org.nsgoods/nsgoods-workbench-mcp Read only x402 catalogue: payability verdicts, prices, drift, host status, signatures. No wallet. 257 ms latency— 24h streamable-http6d ago NBOperational Nsi Bg io.github.pipeworx-io/nsi-bg Bulgarian National Statistical Institute (НСИ / NSI) — Open Data API. 1047 ms latency100% 24h streamable-http20h ago NOperational nslookup io.github.venomseven/nslookup DNS lookups, health reports, SSL certs, security scans, GEO scoring, uptime checks 923 ms latency— 24h streamable-http6d ago NPOperational NSW Planning Data (x402) io.github.zuo305/agent-data-platform NSW DAs, CDCs and property planning reports: zoning, height, FSR, nearby DAs. Pay per call via x402. 260 ms latency— 24h streamable-http6d ago NQAuth required Nteli Quoting io.nteli/quoting AI-native product and pricing configuration (CPQ) for manufacturers, every rule checked. 101 ms latency— 24h streamable-http4d ago NCOperational NTNU Courses (unofficial) io.github.MartinSA04/ntnu-mcp Unofficial NTNU course data: search, timetables, grades, course info, and exam logistics. 1090 ms latency— 24h streamable-http5d ago NIOperational Ntsb Investigations io.github.pipeworx-io/ntsb-investigations NTSB Investigations — aviation accident/incident investigations by registration (tail) number or… 1264 ms latency100% 24h streamable-http19h ago