freightutils/freightutils-mcp16 free freight tools for AI agents — LDM/CBM/chargeable weight calculators (road, air, sea modes), multi-item consignment calculator, pallet fitting, container capacity, air cargo ULD reference (15+ types), vehicle & trailer types, ADR dangerous goods (2,939 entries), HS code lookup (6,940 codes), UK import duty & VAT estimator (live GOV.UK data), INCOTERMS 2020, airline codes (6,352), UN/LOCODE (116,129 locations), unit converter, plus composite shipment summary endpoint. Free REST APIs + MCP server.