Gives Claude access to container shipping costs across six major carriers (Maersk, MSC, CMA-CGM, Hapag-Lloyd, ONE, COSCO) covering demurrage, detention, local port charges, and inland haulage rates. Nine tools total: three free (listing carriers, stats, health checks) and six paid via x402/USDC micropayments at $0.03 to $0.25 per call. The standout is dd_compare, which calculates penalty costs across all carriers in one shot so you can see who's cheapest for a given container type and delay period. Data covers nine countries with 2,500+ verified tariff records pulled from official carrier PDFs. Reach for this when building freight optimization tools or any logistics app that needs real carrier pricing without monthly API contracts.