MCP server registry, checked every day
The full official MCP Registry: 60,597 servers and 237,693 versions, checked every night against public bug databases. A red flag means someone reported a problem. Look before you install.
60,597servers watched
87have a reported issue
9list a version with a reported issue
Last checked 14 hours ago. No flag does not mean safe, only that nothing has been reported publicly. For a full trust grade, see the graded directory.
| Server | Runs as | Listed version | Reported issues |
|---|---|---|---|
| io.github.mrfentmen/opensearch-mcp Search OpenSearch indices, manage documents, check health and stats. | npm | 1.0.33 versions | None reported |
| io.github.mrfentmen/openqasm-mcp OpenQASM MCP: 20 real tools to read, check, lint, scaffold, build and run OpenQASM code. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/openscad-mcp OpenSCAD MCP: 20 real tools to read, check, lint, scaffold, build and run OpenSCAD code. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/openligadb-mcp German football results from OpenLigaDB: available leagues, fixtures by matchday and the current | npm | 1.0.22 versions | None reported |
| io.github.mrfentmen/openlibrary-mcp Book data from Open Library: search, works, authors and editions. | npm | 1.0.52 versions | None reported |
| io.github.mrfentmen/openfoodfacts-mcp Open Food Facts: ingredients, nutrition and Nutri-Score for food barcodes - keyless. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/openfda-mcp openFDA: drug labels, adverse events, drug/device/food recalls and NDC directory — keyless. | npm | 1.0.12 versions | None reported |
| io.github.mrfentmen/opencl-mcp OpenCL MCP: 20 real tools to read, check, lint, scaffold, build and run OpenCL code. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/opencitations-mcp OpenCitations: who cites a DOI and what it ci MCP: real tools for real work. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/openbrewerydb-mcp Open Brewery DB: 8,000+ breweries by name, city, state, country or type, with map links — keyless. | npm | 1.0.12 versions | None reported |
| io.github.mrfentmen/openbeautyfacts-mcp Open Beauty Facts cosmetics database: look products up by barcode, brand or search terms with | npm | 1.0.22 versions | None reported |
| io.github.mrfentmen/openaire-mcp Search OpenAIRE for European research publications, datasets and funded projects - keyless. | npm | 1.0.12 versions | None reported |
| io.github.mrfentmen/open5e-mcp Open5e reference for D&D 5e: spells, monsters and magic items from the open SRD, with stats and text | npm | 1.0.23 versions | None reported |
| io.github.mrfentmen/open-meteo-marine-mcp Open-Meteo Marine: wave height, period and sea temperature for any coast - keyless. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/open-meteo-archive-mcp Open-Meteo Archive: historical daily weather for any coordinates - keyless. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/open-meteo-geocoding-mcp Open-Meteo Geocoding: place names to coordinates, country and timezone - keyless. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/open-library-mcp MCP server for Open Library books, authors, works, editions, and subjects. | npm | 1.0.12 versions | None reported |
| io.github.mrfentmen/open-canada-mcp Open Government Canada: search federal open datasets with publishers - keyless. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/ooc-mcp ooc MCP: 20 real tools to read, check, lint, scaffold, build and run ooc code. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/ols-mcp Search and read terms across hundreds of biomedical ontologies via the EBI OLS - keyless. | npm | 1.0.12 versions | None reported |
| io.github.mrfentmen/oeis-mcp Use this MCP server to the OEIS, the encyclop MCP: real tools for real work. | npm | 1.0.12 versions | None reported |
| io.github.mrfentmen/odin-mcp Odin MCP: 20 real tools to read, check, lint, scaffold, build and run Odin code. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/octave-mcp Octave MCP: 20 real tools to read, check, lint, scaffold, build and run Octave code. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/objective-c-mcp Objective-C MCP: 20 real tools to read, check, lint, scaffold, build and run Objective-C code. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/obis-mcp OBIS marine biodiversity: taxon records, accepted names, children, occurrence records and datasets. | npm | 1.0.12 versions | None reported |
| io.github.mrfentmen/oberon-mcp Oberon MCP: 20 real tools to read, check, lint, scaffold, build and run Oberon code. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/oberon-2-mcp Oberon-2 MCP: 20 real tools to read, check, lint, scaffold, build and run Oberon-2 code. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/nws-weather-mcp NWS Weather: US forecasts from api.weather.gov, no key or signup - keyless. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/nws-alerts-mcp NWS Alerts: live US weather warnings and watches by state code - keyless. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/nws-mcp US National Weather Service: forecasts, hourly forecasts, active alerts and station observations. | npm | 1.0.12 versions | None reported |
| io.github.mrfentmen/nvd-mcp NVD: search CVEs with severity and descriptions from the NIST database - keyless. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/nusmv-mcp NuSMV MCP: 20 real tools to read, check, lint, scaffold, build and run NuSMV code. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/nushell-mcp Nushell MCP: 20 real tools to read, check, lint, scaffold, build and run Nushell code. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/numbers-mcp Number work offline: statistics summaries, roman numerals, base conversion and locale-aware | npm | 1.0.22 versions | None reported |
| io.github.mrfentmen/ntrs-mcp NASA NTRS: technical reports, conference pape MCP: real tools for real work. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/npm-downloads-mcp npm Downloads: weekly download counts for any npm package from the npm API - keyless. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/nonogram-mcp Solve, check and render nonogram (picross) puzzles from row and column clues - fully local. | npm | 1.0.12 versions | None reported |
| io.github.mrfentmen/nominatim-mcp Geocode with OpenStreetMap: find places by name, reverse geocode coordinates and resolve OSM ids | npm | 1.0.23 versions | None reported |
| io.github.mrfentmen/noir-mcp Noir MCP: 20 real tools to read, check, lint, scaffold, build and run Noir code. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/noaa-tides-mcp NOAA Tides: latest water level readings from US tide gauges - keyless. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/noaa-space-weather-mcp NOAA Space Weather: live Kp index and geomagnetic storm readings - keyless. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/nit-mcp Nit MCP: 20 real tools to read, check, lint, scaffold, build and run Nit code. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/nickel-mcp Nickel MCP: 20 real tools to read, check, lint, scaffold, build and run Nickel code. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/nice-mcp Nice MCP: 20 real tools to read, check, lint, scaffold, build and run Nice code. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/nhtsa-mcp NHTSA: VIN decoding, safety recalls, owner complaints, make and model catalogues — keyless. | npm | 1.0.12 versions | None reported |
| io.github.mrfentmen/nemerle-mcp Nemerle MCP: 20 real tools to read, check, lint, scaffold, build and run Nemerle code. | npm | 1.0.01 version | None reported |
| io.github.mrfentmen/ndbc-mcp NDBC ocean buoys and coastal stations: latest wind, wave and water temperatures, plus recent history | npm | 1.0.22 versions | None reported |
| io.github.mrfentmen/ncbi-taxonomy-mcp Look up NCBI taxonomy records, scientific names and full lineage by name or taxon ID - keyless. | npm | 1.0.12 versions | None reported |
| io.github.mrfentmen/ncbi-gene-mcp NCBI Gene records: search by symbol, disease or chromosome and read names, location, aliases and | npm | 1.0.22 versions | None reported |
| io.github.mrfentmen/nasm-mcp NASM MCP: 20 real tools to read, check, lint, scaffold, build and run NASM code. | npm | 1.0.01 version | None reported |