Not reviewed
No score, grade or rank. This listing is facts from the official MCP registry and our own checks, and it stays out of the rankings until the panel reviews it.
Live AIS vessel positions by MMSI, name, area, or radius, plus coverage. No sign-in, no key.
Facts
- MCP registry
io.openwaters/ais· 0.11.0- Endpoint
https://ais.openwaters.io/mcp- Website
- openwaters.io/ais
- GitHub stars
- 7
- Registry entry
- updated 3 Oct 2026
From the official MCP registry, the package registries and our own checks. JSON · Markdown
Why it's listed
- It's published in the registry under openwaters.io, a namespace the registry only gives to whoever proves they control that domain.
Being indexed says nothing about quality, and nobody can pay for it. Is this yours? Ask for a review.
Tools it lists 6 · about 10,288 tokens of context · checked 1 hour ago
| Tool | What it does | Hint |
|---|---|---|
find_vessels_in_areaVessels in an area | Vessels currently inside a latitude/longitude bounding box, newest report first, with optional kind and ship-type filters. Use for what is in a port, a strait, or a stretch of coast. Anonymous calls may cover 100 square… | read-only |
find_vessels_nearVessels near a point or vessel | Vessels within a radius (default 10 NM, maximum 50) of a point or of another vessel's last known position, nearest first, each with distance and bearing from the centre. Use for what is near this position or what is… | read-only |
get_coverageCoverage and sources | Where Open Waters AIS is hearing AIS right now: sources with their current delay, stations, freshness, and vessel counts. Pass a bounding box to learn which stations cover it and how many vessels are in it, or a station… | read-only |
get_vessel_trackWhere a vessel has been | The positions heard from one vessel over a time range, oldest first, with speed, course, and navigational status. Positions implying an impossible speed for the vessel are left out. Use for where a ship was yesterday,… | read-only |
get_vesselsVessels by MMSI | Last known position and particulars of specific vessels by MMSI (Maritime Mobile Service Identity) or IMO number: the last report heard for each, however long ago, with destination, ETA, draught, and dimensions once its… | read-only |
search_vessels_by_nameSearch vessels by name | Vessels whose name contains the text, case-insensitive, among every vessel the network has heard, each with its last known position. Use to turn a name into an MMSI, then get_vessels or find_vessels_near for detail. An… | read-only |
What https://ais.openwaters.io/mcp answered to tools/list, asked without credentials over MCP 2026-07-28. The token figure is the size of the list as sent, divided by four; a model sees about that much before it calls anything. Full definitions, input schemas included, are in the listing's JSON under mcpTools.
How its tools read to an agent 0 errors · 6 warnings · 0 notes
- warnTC11find_vessels_in_area1 parameter without a description: bbox
- warnTC22find_vessels_in_areathe definition is about 2,031 tokens
- warnTC22find_vessels_nearthe definition is about 1,994 tokens
- warnTC22get_coveragethe definition is about 1,525 tokens
- warnTC22get_vesselsthe definition is about 1,988 tokens
- warnTC22search_vessels_by_namethe definition is about 1,978 tokens
The checks from /check and anchor check, run each day on the list above: about 10,288 tokens of definitions. Not part of the score yet. Check your own server.