Porter is an AI-powered classification and rating engine built specifically for Canadian customs brokers. It accepts commercial invoices, packing lists, and other trade documents in PDF, Word, Excel, JPG, and PNG formats, extracts every commodity line item automatically, and returns a complete classification package for each line: suggested 10-digit Canadian tariff item, MFN duty rate, applicable preferential rates under CUSMA, CETA, CCFTA and other Canadian trade agreements, applicable treatment codes, duty amount owed in CAD, a confidence rating for each classification, and a rationale explaining why that tariff item was suggested. Once junior staff review and a licensed broker approves, Porter submits directly to CBSA.