Hourly waiting times, anchorage queues and berth occupancy for 900 ports, plus analyst-verified alerts for closures, strikes, canal restrictions and severe weather.
Data product · Listing updated 11 Nov 2026
Worldwide, no country restrictions stated.
Metrics hourly; verified alerts typically within 45 minutes of first report
900 ports monitored; about 1,200 alerts a month
Small and medium businesses, Mid-market, Enterprises, Public sector
AIS-derived port metrics, port authority notices, maritime news and official weather warnings
Automated congestion metrics from geofenced AIS; alerts detected automatically and verified by analysts around the clock
Know when a port or chokepoint is about to delay your cargo, with the numbers to size the problem.
Congestion metrics are computed automatically from AIS positions inside berth and anchorage geofences for 900 commercial ports. Alerts are detected from port authority notices, maritime news and official weather warnings, then verified by analysts working in three time zones before publication. Severity reflects expected delay and the share of a port's capacity affected. Metrics depend on AIS coverage, so ports with poor terrestrial reception can show lagging queue counts; these ports are flagged.
13 fields as documented by Capstan Maritime Data.
| Field | Type | Description | Example |
|---|---|---|---|
| port_locode | string | UN/LOCODE of the port | — |
| port_name | string | Port name | — |
| hour_utc | datetime | Hour of the metric, UTC | — |
| vessel_type | string | Vessel type segment | — |
| vessels_waiting | integer | Vessels at anchorage awaiting berth | — |
| median_wait_hours | number | Median waiting time of vessels that berthed in the last 7 days | — |
| berth_occupancy_pct | number | Share of berths occupied | — |
| arrivals | integer | Arrivals in the hour | — |
| alert_id | string | Alert ID, when an event is active | — |
| alert_type | string | closure, strike, restriction, weather, accident or cyber | — |
| severity | integer | Severity from 1 (minor) to 5 (critical) | — |
| affected_lanes | json | Trade lanes expected to be affected | — |
| alert_text | string | Analyst summary of the event | — |
Free sample available on request
The provider sends a sample file so you can test fit and quality before you buy.
Prices in USD, as published by Capstan Maritime Data
up to 50 ports, metrics and alerts
all ports, API and webhooks
Converted amounts use DataStoa display rates and are approximate. Capstan Maritime Data quotes the final price, taxes and terms.
Request detailed pricingWorldwide coverage.
Time coverage: 2019 to present.
Provider-reported
Latency: Metrics hourly; verified alerts typically within 45 minutes of first report
DataStoa has not audited these figures. Ask the provider how they are measured, or test them on a sample.
The licence is agreed directly between you and Capstan Maritime Data. This summary is provider-reported; the linked terms prevail.
Not listed: use in commercial products, AI / ML model training, AI retrieval and grounding, redistribution allowed, marketing and outreach, research use. Ask Capstan Maritime Data if you need any of these.
AIS vessel tracking, port calls, freight rates and disruption alerts
Capstan Maritime Data fuses terrestrial and satellite AIS into clean vessel positions, port calls and voyages for the global merchant fleet. From Singapore it also publishes a weekly container freight rate index and round-the-clock alerts on port congestion and shipping disruptions.
Also available on: Snowflake Marketplace, AWS Data Exchange, Databricks Marketplace
What buyers say about Capstan Maritime Data. Reviews cover the provider, not only this listing.
from 3 reviews
The weekly index is transparent about its inputs and we now reference it in two contracts. We would like more coverage on intra-Africa and South America east coast lanes, which they say are planned.
Henrik O., Procurement lead, ocean freight, Retail group
During a congestion spell at a transhipment hub we had the alert and waiting-time data two days before our forwarder told us. That was enough to rebook two shipments through another port.
Sarah J., Logistics manager, Furniture importer
We pulled five years of port calls for bulk carriers in Asia and the berth and anchorage times were consistent with the port authority figures we checked. The API is quick and the vessel classification by size saved us a lot of joins.
Wei L., Freight analyst, Commodity trading company