What are you shipping?

Paste a product. Harmony returns its 10-digit HTS code, the duty rate, and the federal rulings that back it up.

One product per classify — upload a CSV in Catalog for the whole shelf. Try a sample demo Classify it

—10-digit exact —held-out federal rulings —graded nightly

first graded round runs tonight

“Never trust an agent that won’t show you its error rate.”

It classifies.

Walks the HTS tree step by step and cites real CROSS rulings for every answer.

It gets graded.

Every night it re-takes the exam against rulings it has never seen. Scores go public.

It reads its own report card.

It studies its misses over Phoenix MCP, patches itself, and must beat the old score to ship.