Updated 14 November 2026
One REST API for vessels and ports. Start with a free key and pay only when you need live data, a longer history or more credits.
Vessel search by name, MMSI or IMO, vessel particulars, port calls, activity and employment history. For ports it gives expected vessels, vessels in port, arrivals and departures, waiting times at anchor, a congestion index, terminal occupancy, calls on a day, bunker deliveries and canal and strait transits. Answers come as JSON, GeoJSON or CSV.
Port calls, arrivals and departures, waiting times at anchor and port events are worked out by us wherever we hear vessels. Port answers name the terminal or anchorage instead of giving coordinates.
A free API key gives 1,000 credits a month with data 24 hours behind and 7 days of history. Data API Plus is €49 a month for 20,000 credits, Pro €129 for 80,000 credits with the live stream and Scale €249 for 250,000 credits. One vessel returned costs 1 credit and one vessel-day of track costs 1 credit. The full table is on Credits and limits.
Vessel positions, tracks and the live stream through the API come only from sources whose licence lets us pass them on. Today that means Norway, parts of the Baltic and the areas of our own and volunteer stations; for the past also Danish and US coastal waters from their archives. A free account shows which. The coverage page shows where vessels were heard in the last 24 hours.
The MCP connector lets an assistant that speaks the Model Context Protocol ask the same endpoints with your key, so your plan's credits, rate, area, history and delay apply. A free account's key answers nine of its tools; the others need a paid plan.
Get a key, send it as Authorization: Bearer and ask for the waiting times at Rotterdam. The quickstart takes about two minutes and the OpenAPI file works with client generators.
AIS data can be late, missing or wrong. Not for navigation.
More guides: Historical AIS data · Port waiting times · AIS data in Europe · All reports · All ports · Tankers · Container vessels · Bulk carriers · Ferries
Gangway AIS is built and run by Motto Marine International. Write to desk@gangwayais.com