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MCP server

Open Waters AIS

By openwatersAll Openwaters servers

Live AIS vessel positions by MMSI, name, area, or radius, plus coverage. No sign-in, no key.

First seen 2 Oct 2026. One server, whatever directories list it: each directory listing keeps its own page and history.

1
Directories
Collected by InvokeRank
6
Tools
From an anonymous probe
-
ToolBench grade
Not graded by Arcade
7
GitHub stars
From MCP Toplist

Tools

ToolDescriptionBehaviour
find_vessels_in_areaVessels 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 degrees per call.Read-only
find_vessels_nearVessels 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 around vessel X.Read-only
get_coverageWhere 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 id for that station's numbers. Vessel counts cover the last 30 minutes; max_age widens them, to 7d for the last week or all for every vessel the network has heard. Call this before saying a region has no traffic.Read-only
get_vessel_trackThe 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, when it left port, or its route today. A call covers up to a year. By default the positions are spread evenly over the range; interval_minutes sets the spacing.Read-only
get_vesselsLast 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 static data has been heard, and which identifiers match no vessel the network has heard. A vessel whose IMO number has a Wikidata item also carries its type, builder, year built, tonnage, registered dimensions, registry, home port, owner, operator, former names, and Wikipedia and Commons links from there, and a documented US vessel its service type, status, official number, registered dimensions, and tonnage from the US Coast Guard. Use search_vessels_by_name first when you only have a name.Read-only
search_vessels_by_nameVessels 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 optional bounding box narrows the search.Read-only

Directory listings

DirectoryListingTierFirst seen
Official MCP RegistryOpen Waters AIS-2 Oct 2026