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Query NOAA marine forecasts, buoy observations, tidal predictions, and coastal weather data.
Do not connect
A critical issue was found. Do not connect this server as-is.
Scanned 1 month ago Due for re-check
A server can change after it's graded. Re-run the automated scan to refresh this report.
This grade is deterministic and reproducible: the same server surface always yields the same grade under a given algorithm version. It is a real automated assessment computed by the MCPGrade engine from what the probe actually observed — not a fabricated or opinion score. It is not a manual human pentest, so it can miss context-specific risks.
Every signal below was measured directly by the automated probe. The grade is derived only from evidence like this — nothing is assumed.
The noaa-marine-mcp-server MCP server exposes 7 tools, focused primarily on general-purpose capabilities. Its published description reads: "Query NOAA marine forecasts, buoy observations, tidal predictions, and coastal weather data". It communicates over Streamable HTTP using the 2025-06-18 protocol revision, and does not require authorization to connect. MCPGrade currently rates noaa-marine-mcp-server F — a critical issue was found and the server should not be connected as-is. Its most notable findings include "Cross-tool shadowing" and "Cross-tool shadowing". This report is a deterministic, reproducible automated assessment: the same observed surface always yields the same grade under a given algorithm version, and it is refreshed as new scans arrive and free to read — but it is not a substitute for a manual human security review. Always re-check noaa-marine-mcp-server's advertised tools, transport security, and authorization posture before connecting an autonomous agent or sharing sensitive context with it.
Add noaa-marine-mcp-server to an MCP client using the endpoint below. Review the grade and findings above before granting an autonomous agent access.
MCP endpoint
https://noaa-marine.caseyjhand.com/mcpStreamable HTTP transport. This is the MCP endpoint, not a website — paste it into your MCP client server list rather than a browser.
Captured passively during the read-only scan. Click any value to find servers that match it.
The tools this server advertises via tools/list — names, purposes, and the parameters each accepts, exactly as enumerated read-only.
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
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 pre
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 (positiv
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_curr
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
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 direc
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 a
Sorted worst-first. Each finding shows its severity, what it means, its OWASP MCP Top-10 mapping, and a recommended fix — the check id links to the exact methodology row that produced it.
tool: noaa_marine_find_stations
A tool description tries to alter the model’s use of another tool.
vailability. If noaa_marine_get_currents returns no_predictions for a station, try the nRecommendationDescriptions must describe only their own tool.
tool: noaa_marine_get_tide_predictions
A tool description tries to alter the model’s use of another tool.
iple calls. Use noaa_marine_find_stations first to resolve a station name or location toRecommendationDescriptions must describe only their own tool.
tool: noaa_marine_get_water_level
A tool description tries to alter the model’s use of another tool.
iple calls. Use noaa_marine_find_stations first to resolve a station name or location toRecommendationDescriptions must describe only their own tool.
tool: noaa_marine_get_currents
A tool description tries to alter the model’s use of another tool.
er request. Use noaa_marine_find_stations with types=["current"] to obtain valid currentRecommendationDescriptions must describe only their own tool.
tool: noaa_marine_get_conditions
A tool description tries to alter the model’s use of another tool.
inutes old. Use noaa_marine_find_stations with source="ndbc" and types=["met"] to find stRecommendationDescriptions must describe only their own tool.
tool: noaa_marine_get_current_profile
A tool description tries to alter the model’s use of another tool.
component. Use noaa_marine_find_stations with source="ndbc" and types=["current_profile"RecommendationDescriptions must describe only their own tool.
tool: noaa_marine_get_ocean_observations
A tool description tries to alter the model’s use of another tool.
tation IDs from noaa_marine_find_stations with source="ndbc", and expect the observationsRecommendationDescriptions must describe only their own tool.
tool: (server instructions)
A tool description tries to alter the model’s use of another tool.
DBC. Start with noaa_marine_find_stations to resolve a location or name to station IDs, tRecommendationDescriptions must describe only their own tool.
The server accepts tool enumeration (and likely invocation) with no authentication.
RecommendationRequire OAuth 2.1 authorization for any server exposing non-public tools.
tool: noaa_marine_find_stations
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
tool: noaa_marine_get_tide_predictions
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
tool: noaa_marine_get_water_level
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
tool: noaa_marine_get_currents
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
tool: noaa_marine_get_conditions
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
tool: noaa_marine_get_current_profile
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
tool: noaa_marine_get_ocean_observations
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
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