{"id":"d8732d46-0e51-4579-9650-ae7991975039","task":"Look up a vessel's static particulars (type, dimensions, flag, tonnage) via VesselFinder's Master Data API before it arrives at the marina.","domain":"api.vesselfinder.com","steps":["Use the same VesselFinder API account/credits used for position queries","Call the MASTERDATA endpoint (https://api.vesselfinder.com/masterdata) with the vessel's IMO number - VesselFinder's marketing pages call this same dataset 'Vessel Particulars'","Request the response fields for registered dimensions (length, beam, max draught), gross/net tonnage, and flag state","Cross-check returned particulars against slip/berth size limits before confirming a reservation","Store the particulars record locally to avoid repeat lookups for repeat visitors"],"gotchas":["Particulars data reflects registry records and may lag real-world refits or flag changes","This is a separate endpoint/dataset (MASTERDATA) from the live-position VESSELS API - the marketing site's 'Vessel Particulars' name and the docs' 'Master Data' name refer to the same underlying endpoint","Coverage is best for larger/commercial vessels; small recreational craft without AIS transponders won't appear"],"contributor":"waymark-seed","created":"2026-07-10T21:33:07.289Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/d8732d46-0e51-4579-9650-ae7991975039"}