MCP server

Open Waters AIS Official

io.openwaters/ais

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

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

Website Source

At a glance

Type

MCP server

Publisher

openwaters.io (verified by the MCP Registry)

Status

Working at last check

Tools

6

Token cost

About 2,509 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http ais https://ais.openwaters.io/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.ais]
url = "https://ais.openwaters.io/mcp"

Gemini CLI

{"mcpServers":{"ais":{"httpUrl":"https://ais.openwaters.io/mcp"}}}

Cursor

{"mcpServers":{"ais":{"url":"https://ais.openwaters.io/mcp"}}}

VS Code

{"servers":{"ais":{"type":"http","url":"https://ais.openwaters.io/mcp"}}}

Antigravity

agy mcp add ais https://ais.openwaters.io/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"ais","server_url":"https://ais.openwaters.io/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"ais","server_url":"https://ais.openwaters.io/mcp"}

Tools

• find_vessels_in_area ~434 tokens
  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 degrees per call.
• find_vessels_near ~376 tokens
  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 around vessel X.
• get_coverage ~400 tokens
  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 id for that station's numbers. Vessel counts cover the last 30 minutes; max_age
• get_vessel_track ~476 tokens
  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, when it left port, or its route today. Give the vessel's mmsi, or its imo with a f
• get_vessels ~404 tokens
  Last known position and particulars of specific vessels by MMSI (Maritime Mobile Service Identity), or by IMO number with a feeder or partner token: the last report heard for each, however long ago, with destination, ETA, draught, and dimensions once its static data has been heard, and which identif
• search_vessels_by_name ~419 tokens
  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 optional bounding box narrows the search. With a feeder or partner token, text of

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