41°54′ N · 12°58′ E
SCALE 1:25 000
— MCP · v1.28 —
FOR DEVELOPERS · two doors

The marine data layer
for coding agents.

Plug Nausika into Claude Code, Cursor, Windsurf or Zed. Your coding agent becomes sea-aware — perfect for building nautical apps, weather dashboards, fleet tools.

Later: extend Nausika itself — publish your own tools, data feeds and plugins.

// .mcp.json at your repo root
{
  "mcpServers": {
    "nausika": {
      "url": "https://nausika.app/mcp",
      "transport": "http"
    }
  }
}

$ claude /mcp
✓ nausika · 21 tools: forecast, tides, routes…
§ Door 1 · Connect — available now

Coding agents that speak sea.

Claude Code
@anthropic
Native MCP. .mcp.json at repo root.
Cursor
cursor.sh
MCP panel. One-click.
Windsurf
codeium
Cascade tools. URL + auth.
Zed
zed.dev
Context servers. TOML config.

Same 21 tools your chat AI has — now in your IDE. Scoped API keys permit read and write (propose_edit, propose_place). Use cases: weather-routing apps, anchorage discovery UIs, fleet dashboards, marine VRP solvers, chart-aware RAG.

§ Tool inventory · 21 functions
get_marine_forecast
Wave, wind, swell, current · 7d hourly.
get_tide_predictions
NOAA high/low · station-based.
find_sea_route
pgRouting · global coverage.
search_places
PostGIS proximity query.
get_place_details
Depth, bottom, moorings.
list_tide_stations
Nearest N stations to coords.
get_boat_profile
Draft + speed for ETA calc.
save_boat_profile
Persist boat attributes.
save_favorite_place
Bookmark a place for a user.
rate_place
Community rating with 1–5 stars.
submit_proposal
File a new place or edit.
get_proposals
List pending / approved / rejected.
convert_coordinates
DM · DMS · decimal.
is_water
Coastline containment check.
reverse_geocode
Coords → place name (Nominatim).
forward_geocode
Place name → coords.
get_poi_nearby
Overpass nautical POIs.
get_weather_forecast
Atmospheric forecast window.
calculate_distance
Great-circle nm between coords.
get_sea_route_eta
Time at speed along route.
plan_sailing_trip
Multi-tool workflow prompt.
§ How it routes under the hood
Your agentMCPNausikaOpen-MeteoNOAA CO-OPSPostGIS + pgRoutingCommunity DB
§ Door 2 · Extend — roadmap
— Coming —

Publish tools and data feeds onto Nausika.

Public API to contribute new MCP tools, data sources and plugins back into the engine. Build on Nausika from both sides: consume as a user, extend as an author.

  • POST /api/v1/tools — register a custom MCP tool with schema + handler URL.
  • POST /api/v1/feeds — push new places, observations, AIS tracks.
  • GET /api/v1/marketplace — discover community-authored tools; opt-in per user.
  • Author revenue share post-GA (tools/feeds that drive paid calls).

Timeline: tracked in the blog changelog. Beta users get first API-key access to the Extend endpoints when they ship.

§ Limits · spoken plainly
During beta
  • Rate: 100 req / min / key
  • Concurrency: 10
  • Uptime target: 99.5%
  • Price: 0 €
Coverage truth
  • Mediterranean: strong.
  • European Atlantic: solid.
  • NOAA tides: US full.
  • Pacific: roadmap.

Ship a sea-aware agent today.