Open Waters AIS

Open Waters AIS lets you explore ship traffic using Automatic Identification System (AIS) reports.

Look up a vessel by name or MMSI to see its last reported position, destination, and time of report. Find ships within a radius or a map area, or follow a vessel’s track over a time range.

MCP connector

Server URL: https://ais.openwaters.io/mcp
Login: None
Protocol: MCP 2026-07-28
Instructions: Open Waters AIS (https://openwaters.io/ais/) is the open AIS network: live vessel positions from government feeds, partner aggregates, and volunteer receivers, deduplicated into one picture.
Live terrestrial coverage is strongest in the Nordics and wherever volunteer receivers are; elsewhere positions come from partner aggregates, mostly AISHub, which runs about a minute behind. reports each source's current delay, also published at https://ais.openwaters.io/v1/stats. A region without reports may have gaps in coverage.
A position is the last report heard. and return vessels heard in the last 30 minutes. and also find vessels heard earlier, with the last position the network heard from them. Each row's seen and age_s give the time and age of its last report.
Destination, ETA, draught, dimensions, call sign, and IMO come from a vessel's static data, which it sends every six minutes, so a vessel heard for the first time may lack them. Flag comes from the MMSI's maritime identification digits and is present when those are known. The ETA gives the month and day of the next expected arrival, without a year.
Anonymous calls may cover 100 square degrees and look up 10 vessels by MMSI per call. A free personal token from https://openwaters.io/ais/token, sent as an Authorization: Bearer header, raises that to 400 square degrees and 50 vessels. A tool says so when a call exceeds its limit.
Looking vessels up by IMO number needs a feeder or partner token; every tier sees the IMO in the vessels it gets back. A feeder token is a personal token whose station feeds the network. One IMO can be reported by several vessels: a ship that changed flag keeps its IMO under a new MMSI, and some vessels send placeholder numbers such as 1234567.
The credit lines in each result's attribution field are required wherever the data is displayed.
A supplement to onboard AIS, never a substitute, and not for safety of navigation.

Tools

Reads data6

Skills

None in the store listings or on the server

MCP connector

Server URL

https://ais.openwaters.io/mcp

None

Protocol

MCP 2026-07-28

Instructions

Open Waters AIS (https://openwaters.io/ais/) is the open AIS network: live vessel positions from government feeds, partner aggregates, and volunteer receivers, deduplicated into one picture.

Live terrestrial coverage is strongest in the Nordics and wherever volunteer receivers are; elsewhere positions come from partner aggregates, mostly AISHub, which runs about a minute behind. reports each source's current delay, also published at https://ais.openwaters.io/v1/stats. A region without reports may have gaps in coverage.

A position is the last report heard. and return vessels heard in the last 30 minutes. and also find vessels heard earlier, with the last position the network heard from them. Each row's seen and age_s give the time and age of its last report.

Destination, ETA, draught, dimensions, call sign, and IMO come from a vessel's static data, which it sends every six minutes, so a vessel heard for the first time may lack them. Flag comes from the MMSI's maritime identification digits and is present when those are known. The ETA gives the month and day of the next expected arrival, without a year.

Anonymous calls may cover 100 square degrees and look up 10 vessels by MMSI per call. A free personal token from https://openwaters.io/ais/token, sent as an Authorization: Bearer header, raises that to 400 square degrees and 50 vessels. A tool says so when a call exceeds its limit.

Looking vessels up by IMO number needs a feeder or partner token; every tier sees the IMO in the vessels it gets back. A feeder token is a personal token whose station feeds the network. One IMO can be reported by several vessels: a ship that changed flag keeps its IMO under a new MMSI, and some vessels send placeholder numbers such as 1234567.

The credit lines in each result's attribution field are required wherever the data is displayed.

A supplement to onboard AIS, never a substitute, and not for safety of navigation.