Gangway AISGangway AISby Motto Marine International
DOCS · API v1
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Vessels

Vessel activityGANGWAY ONLY

GET/v1/vessels/{mmsi}/activity5 credits

What a vessel did: miles sailed, hours under way, in port, at anchor and unheard, top and average speed and the ports she called at.

Parameters

NameDescription
mmsirequired
integer
In the path.
days
integer
Up to 7 on the free API allowance, 90 on Plus, 365 on Pro and Scale. Default 30 (7 on the free API allowance).
curl "https://gangwayais.com/v1/vessels/257753000/activity" \
  -H "Authorization: Bearer $GANGWAY_KEY"
{
  "mmsi": 257753000,
  "points": 812,
  "nm": 1240,
  "hours": {
    "underway": 160.5,
    "port": 402.2,
    "anchor": 31,
    "idle": 0,
    "unheard": 26.3
  },
  "max_sog": 18.4,
  "avg_sog": 13.1,
  "calls": 12,
  "days": 30,
  "history_since": "2026-10-07T00:00:00Z",
  "ports": [
    {
      "name": "Bergen",
      "calls": 7
    },
    {
      "name": "Stavanger",
      "calls": 5
    }
  ],
  "attribution": {
    "barentswatch": "Gangway AIS (https://gangway.app). Data delivered by BarentsWatch. Contains data under the Norwegian licence for Open Government data (NLOD) distributed by the Norwegian Coastal Administration."
  },
  "notice": "Not for navigation. AIS data can be missing, delayed or wrong. Never use it for navigation, collision avoidance, search and rescue or any safety-of-life decision."
}