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mcp server

noaa-marine-mcp-server

Find NOAA tide stations and NDBC buoys, fetch tide predictions, currents, and live conditions.

Description as published by the maintainer. Source

  • version 0.3.0
  • active

active — Most recent push to the repository was 2026-07-30.

What this server can do

7 functions, named and described by the server itself. Parameter names are shown because they say more about what a function does than its name usually does.

noaa_marine_find_stations(limit, query, state, types, source, latitude, longitude, radius_km)
Find CO-OPS tide/water-level/current stations and NDBC buoys near a location or by name/state. Returns a unified station list with source, data capabilities, coordinates, and — for NDBC — the physical platform class. This is the required first step to resolve place names or coordinates to station IDs before calling data tools. CO-OPS station IDs are numeric (e.g. 9447130 for Seattle); current station IDs are alphanumeric (e.g. ACT4176). NDBC buoy IDs are 5-character alphanumeric codes (e.g. 46041). Two axes are reported separately: `capabilities`/`type` describe the data products a station serves (tide, current, water_level, met, current_profile), while `platform` is the NDBC physical classification (buoy, fixed, oilrig, dart, tao, usv, other). CO-OPS stations carry no platform class. Provide latitude and longitude together for proximity search, or query/state for name-based search — both may be combined. Note: CO-OPS current stations are cataloged by monitoring capability, not prediction availability. If noaa_marine_get_currents returns no_predictions for a station, try the next nearest current station.
noaa_marine_get_conditions(station_id)
Live marine conditions from an NDBC buoy: wave height/period/direction, wind speed/gust/direction, sea-surface temperature, air temperature, barometric pressure, and dew point. All values are SI units — wind in m/s, wave height in m, pressure in hPa, temperatures in °C. Exceptions: TIDE is in feet and VIS is in nautical miles (rarely populated at offshore buoys). Numeric fields are null when the buoy sensor did not report a value — this is normal for offshore buoys. Observations are updated approximately every 10 minutes; data may be 10–20 minutes old. Use noaa_marine_find_stations with source="ndbc" and types=["met"] to find station IDs near a location — met-flagged stations are the ones most likely to serve live conditions. Roughly a third of active NDBC stations report neither meteorological nor current data, and most of those have no observation file, so omitting the types filter will surface station IDs this tool cannot read. Required: station_id.
noaa_marine_get_current_profile(station_id)
Observed ocean-current depth profile from an NDBC ADCP buoy: the most recent measurement of current speed and direction at each depth bin. Returns depth in meters, direction in degrees true (the direction the current flows toward), and speed in cm/s. Distinct from noaa_marine_get_currents, which returns CO-OPS tidal-current predictions (forecast max flood/ebb/slack) rather than these observed acoustic-Doppler measurements. A depth bin is reported whenever NDBC gives it a depth; its direction or speed is null when the sensor did not report that component. Use noaa_marine_find_stations with source="ndbc" and types=["current_profile"] to find station IDs — most NDBC stations serve no ADCP profile, so an unfiltered search returns IDs this tool cannot read. Required: station_id.
noaa_marine_get_currents(units, end_date, interval, time_zone, begin_date, station_id)
Tidal current predictions for a CO-OPS current station: max flood/ebb speeds, slack times, and directions. These are forecast tidal-current predictions from CO-OPS — distinct from noaa_marine_get_current_profile, which returns NDBC observed ocean-current measurements binned by depth. Defaults to MAX_SLACK interval — the practical planning view showing when currents peak and when slack water occurs. Optionally returns 6-minute continuous predictions for detailed analysis. Current station IDs use alphanumeric format (e.g. ACT4176), distinct from numeric tide/water-level IDs. Date range is limited to 1 year per request. Use noaa_marine_find_stations with types=["current"] to obtain valid current station IDs. Required: station_id, begin_date, end_date.
noaa_marine_get_ocean_observations(station_id)
Live sub-surface oceanographic observations from an NDBC station's water-quality sensors: at each reported depth, water temperature, conductivity, salinity, dissolved oxygen (both saturation percent and concentration in ppm), chlorophyll, turbidity, pH, and redox potential. This is the water-column counterpart to noaa_marine_get_conditions, which returns surface meteorological and wave data (wind, waves, sea-surface temperature) — use this tool for what the water is doing below the surface, that one for weather and sea state at the buoy. Returns the most recent observation as one reading per reported depth; most stations report a single depth, but some report several at the same time. Sensor coverage is sparse — most stations populate only water temperature and salinity — and any value the station did not report comes back null rather than a fabricated zero. Latitude and longitude are null when the station is absent from the NDBC active-stations list. Sub-surface sensors are on only a subset of NDBC stations and are not marked by any station-catalog flag, so no capability filter guarantees coverage: call this on candidate NDBC station IDs from noaa_marine_find_stations with source="ndbc", and expect the observations_not_found error on the many stations that serve no .ocean file. Required: station_id.
noaa_marine_get_tide_predictions(datum, units, end_date, interval, time_zone, begin_date, station_id)
High/low tide predictions for a CO-OPS tide station over a date range. Returns time, height, and tide type (H=high, L=low) for each event when using the default hilo interval, or 6-minute interval predictions for a detailed tide curve. Datum defaults to MLLW (mean lower low water — standard for US nautical charts). Date range is limited to 1 year per request; split longer ranges across multiple calls. Use noaa_marine_find_stations first to resolve a station name or location to a numeric station ID. Required: station_id, begin_date, end_date.
noaa_marine_get_water_level(datum, units, end_date, time_zone, begin_date, station_id)
Observed water level (real-time or historical) for a CO-OPS water-level station, with paired predictions for comparison. The difference (residual = observed − predicted) indicates storm surge (positive) or anomalous drawdown (negative). Returns 6-minute observations alongside 6-minute predictions. Date range is limited to 31 days per request; split longer ranges into multiple calls. Use noaa_marine_find_stations first to resolve a station name or location to a valid station ID. Required: station_id, begin_date, end_date.

Last successful function declaration observed on . Source: https://noaa-marine.caseyjhand.com/mcp. We list what the server declared; we do not call any of these functions.

Endpoint status observed on . Source: https://noaa-marine.caseyjhand.com/mcp.

Signals

These are separate measurements of different things. They are deliberately not combined into one score, because a popularity number that mixes website traffic with saves and stars cannot be checked or acted on.

Signal Value What it measures Window Observed Source
GitHub stars 1 Number of GitHub accounts that bookmarked this repository since it was created. It is a bookmark count, not installs, not active users and not quality. cumulative, all time GitHub
Last commit 2026-07-30 Date of the most recent push to any branch. This is the strongest cheap indicator of whether the project is still maintained. point in time GitHub
Open issues 1 Open issues plus open pull requests, as GitHub counts them together. A high number can mean an active project or an abandoned one. as of fetch GitHub
Latest published version 0.3.0 Latest version string the maintainer published to the registry. as of fetch Model Context Protocol
Registry record last updated 2026-07-16 When the registry record was last updated by its maintainer. point in time Model Context Protocol
License Apache-2.0 Licence GitHub detected in the repository. Detection can be wrong; the LICENSE file is authoritative. as of fetch GitHub
First listed in the MCP Registry 2026-07-16 Date this server was first published to the official MCP Registry. Not a usage or quality measure. point in time Model Context Protocol
repository status active The repository exists on GitHub and is not archived. This says nothing about how recently it was worked on. as of fetch GitHub
mcp tools declared 7 tools Number of functions the server itself declared when asked to list them. This is what the server offers an agent, not a measure of how well any of them work. as of probe noaa-marine.caseyjhand.com
mcp endpoint status ok The server listed 7 functions when asked. as of probe noaa-marine.caseyjhand.com

Where to get it

Related, by what their authors tagged them

These share tags the maintainers applied themselves, such as marine, cyanheads, noaa. Common tags like "mcp" or "ai" are ignored for this: agreeing with six hundred other projects is not a similarity.

This is not a recommendation and not a test result. It is a map of what the authors said their work is about.

Also from cyanheads

How the author describes it

Topics the maintainer set on GitHub: ai-agents, ai-tools, buoy, cyanheads, marine, mcp, mcp-server, model-context-protocol, noaa, oceanography, tides, typescript.

This record as data

Every field on this page, with its source and observation date, is in the catalog JSON. Fetch the whole kind at once instead of parsing this HTML.

GET /api/v1/entries/mcp_server.json

Sources

  1. cyanheads/noaa-marine-mcp-server on GitHub — GitHub, observed , trust tier 3.
  2. Tools declared by the MCP server at https://noaa-marine.caseyjhand.com/mcp — noaa-marine.caseyjhand.com, observed , trust tier 4.
  3. Official MCP Registry — Model Context Protocol, observed , trust tier 1.