Poseidon AIS

Poseidon AIS — Real-time and historical global AIS vessel-position dataset exposed through a developer-oriented REST API: live vessel positions with search, identify, in-area and radius scans, bulk lookups and a full vessel-database dump, plus per-vessel historical track retrieval gated by subscription tier (30 days, 365 days or extended history). The response surface is stated to be the full upstream AIS message field set rather than a trimmed vendor subset. Derived products positioned on the site include ETA-versus-actual deviation alerts, congestion prediction, AIS-gap and dark-fleet detec…

Poseidon AIS offers (Geospatial, Alternative, Supply Chain, Esg) — Headline coverage figures are not reliably readable on the page — the counter tiles render as unpopulated placeholders (0.00M+ vessels, <0ms latency, 0D history, 0.0% uptime), and the search-index summary of the same page cites 400,000+ vessels tracked and 1.97M+ vessels in the system. Treat vessel coverage as unverified pending direct confirmation; what is concrete is 11 live endpoints with 15 more on a stated roadmap. Request the true vessel count, message ingestion rate and retained-history size.

Fleet live-tracking and historical voyage audit, port-inbound visibility with congestion prediction and pilotage/berthing planning, hull-insurance risk verification and dark-fleet screening before binding a policy, sanctions investigation and open-source maritime journalism, territorial-waters monitoring and pattern-of-life construction for defence and coastguard users, fishing-fleet monitoring and co-op coordination, and ML training for vessel-anomaly detection, arrival forecasting and identity-resolution models

Coverage spans US, UK, Europe, APAC, Japan; Shipping; geospatial, alternative, supply_chain, esg; equities, commodities.