# Nausika > Nausika, an MCP server by nausika.app, listed from the official MCP registry. Indexed, not reviewed: facts and our own checks, no score or ranking. Mediterranean marine, nautical, sailing: forecasts, tides, sea routes, anchorages, POIs for AI. - Canonical: https://www.anchorterminal.com/tools/nausika-mcp - Markdown: https://www.anchorterminal.com/tools/nausika-mcp.md (~1,550 tokens) - Slim: https://www.anchorterminal.com/tools/nausika-mcp.min.md (~1,480 tokens, same facts, less prose, for token-sensitive contexts) - JSON: https://www.anchorterminal.com/tools/nausika-mcp.json (this page as data, same URL with Accept: application/json) - Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt) - API: https://www.anchorterminal.com/api/v1/index.json - Updated: 2026-10-05 # Nausika > Indexed, not reviewed: facts from the official MCP registry and our own checks. No score, grade or rank, and not in the rankings until the panel reviews it. How the index works: https://www.anchorterminal.com/indexed/ - Kind: MCP server, by nausika.app (https://nausika.app) - Category: Weather & climate data (https://www.anchorterminal.com/categories/weather.md) - Listed because: It's published in the registry under nausika.app, a namespace the registry only gives to whoever proves they control that domain. - What the official MCP registry says: Mediterranean marine, nautical, sailing: forecasts, tides, sea routes, anchorages, POIs for AI. ## Facts - MCP registry: `app.nausika/mcp` 0.1.3 - Endpoint: https://mcp.nausika.app (streamable HTTP) - Source: https://github.com/nausika-app/nausika-feedback - Website: https://nausika.app - GitHub stars: 1 - Registry entry updated: 2026-05-19 ## Tools - Tools it lists (19, about 17,337 tokens of context, `tools/list` without credentials over MCP 2025-11-25, checked 2026-10-04 22:21 UTC): - `nausika_marine_forecast` (read-only): Marine + atmospheric forecast at (latitude, longitude in decimal degrees). Returns waves, swell, currents, SST, wind, gusts, pressure, weather_code,… - `nausika_seasonal_forecast` (read-only): Fetch 1-7 month ECMWF SEAS5 seasonal forecast for one Mediterranean point. Returns ensemble-mean DAILY + MONTHLY aggregates of wind, SST, temperature,… - `nausika_tides` (read-only): Tide predictions or station discovery at a coordinate (latitude, longitude). Default: predictions from the nearest NOAA station; outside US waters falls back… - `nausika_search_places` (read-only): Mediterranean nautical place search by proximity. latitude+longitude are ALWAYS required — this is not a standalone text search. 'query' is only a name filter… - `nausika_get_place` (read-only): Fetch full detail for a single place given its 'id'. Accepts either a full UUID or the 8-char [xxxxxxxx] short-id shown by nausika_search_places. Returns… - `nausika_sea_route` (read-only): Maritime routing via pgRouting Dijkstra on the MARNET sea-lane graph (Mediterranean only; errors out elsewhere), 6 kn sailing-yacht default, snaps land… - `nausika_calculator` (read-only): Evaluate a math expression and return the numeric result. Useful for fuel, range/autonomy, unit conversions, and ad-hoc arithmetic. Supported (exhaustive): +,… - `nausika_geocode` (read-only): Resolve a place 'query' to coordinates (forward) or find nearest places to 'latitude'+'longitude' (reverse). Mediterranean-focused curated DB; forward falls… - `nausika_describe_place_schema` (read-only): Returns the expected attributes for a given place 'type' (the only input parameter: marina, port, bay, fuel_station, city, island, etc.). Useful to understand… - `nausika_is_water` (read-only): Check whether a coordinate (latitude, longitude in decimal degrees) is on water or land, and how far it is from the coast. Returns: - is_water: boolean (true… - `nausika_convert_coordinates` (read-only): Convert nautical coordinates between decimal degrees, DMS, and DM. Inputs: latitude, longitude — each accepts decimal (44.4), DMS ("44°24'00\"N"), or DM… - `nausika_manage_boat_profile` (writes): Manage boat profile (multi-boat per account, keyed by name). Inputs: action, name, type, loa_m, beam_m, draft_m, displacement_kg, engine_type, engine_hp,… - `nausika_get_boat_profile` (read-only): Get your saved boat profile(s). Omit name for the default boat, or use name="*" to list all boats. Tip: use boat speed/consumption with nausika_sea_route and… - `nausika_manage_favorite` (writes): Add or remove a place from your favorites list. Examples: - Add: action="add", place_id="a1b2c3d4", note="Great anchorage for overnight" - Remove:… - `nausika_get_favorites` (read-only): List your favorite places with details and personal notes. Ordered by most recently added. Inputs: limit, offset. Tip: use place coordinates with… - `nausika_manage_rating` (writes): Rate a place (1-5 stars) with an optional private comment. One rating per user per place. Examples: - Rate: action="upsert", place_id="a1b2c3d4", score=4,… - `nausika_get_ratings` (read-only): View ratings for a place (aggregate + your own) or list all your ratings. Inputs: place_id, my_only, limit, offset. Examples: - Place ratings:… - `nausika_manage_route` (writes): Save a sailing route or multi-day itinerary; legs may link to places. Typical flow: compute legs with nausika_sea_route, then save here. Examples: - Single:… - `nausika_get_routes` (read-only): Look up your saved sailing-route library: direct fetch by id, or paginated search by name fragment via query, with limit and offset for pagination. Examples: -… - How its tools read to an agent (0 errors, 3 warnings, 0 notes, about 17,337 tokens; rules at https://www.anchorterminal.com/check.md; not part of the score): - warn TC22 nausika_marine_forecast: the definition is about 2,114 tokens - warn TC22 nausika_search_places: the definition is about 2,112 tokens - warn TC23 server: 19 tools, about 17,162 tokens of definitions - JSON: https://www.anchorterminal.com/api/v1/tools/nausika-mcp.json - Being indexed says nothing about quality, and nobody can pay for it. Ask for a review: https://www.anchorterminal.com/builders/#claiming