# Klassio > Klassio (klassio.se) is a free decision-support tool for EU importers, built for Swedish SMEs. It finds the right CN/HS commodity code for a product, and shows the third-country (MFN) duty rate, EU Deforestation Regulation (EUDR) scope and next steps — every answer cites its source (Tullverket/Tulltaxan, EUR-Lex, EBTI). It is not a binding ruling; binding tariff information (BKB/BTI) is issued by customs authorities. Pages are served in Swedish by default. Codes are EU Combined Nomenclature (CN, Swedish: KN-nummer); the first six digits are the international HS code. ## Look up a code (stable, crawlable URLs — no login) - [CN code index](https://klassio.se/kn): all 97 chapters, grouped by section - Code pages: `https://klassio.se/kn/{code}` where `{code}` is 2, 4, 6 or 8 digits without spaces, e.g. [chapter 94](https://klassio.se/kn/94), [heading 9403](https://klassio.se/kn/9403), [CN 9403 60 10](https://klassio.se/kn/94036010). Each page gives the official text, the codes above and below it, MFN duty, EUDR scope and examples of goods classified there from EU binding tariff rulings. - [Sitemap of every code page](https://klassio.se/sitemap-kn.xml) - [EUDR by commodity](https://klassio.se/eudr): the CN codes Annex I of Regulation (EU) 2023/1115 lists for cattle, cocoa, coffee, oil palm, rubber, soy and wood, with application dates — e.g. [wood](https://klassio.se/eudr/tra), [coffee](https://klassio.se/eudr/kaffe) ## Classify a product from a description - Interactive: [klassio.se](https://klassio.se/) — describe the product in free text (Swedish or English). Intended for people; automated clients should use the MCP server below instead of fetching result pages. - [MCP server](https://klassio.se/mcp): remote Model Context Protocol server at `https://klassio.se/api/mcp` (streamable HTTP). Two read-only tools work without an account, rate-limited: `klassio_lookup_cn_code` (description, duty, hierarchy for a CN code) and `klassio_classify_article` (CN code + the General Interpretative Rule applied + EUDR status for a product description). Bulk classification, saved classifications and similar-BTI search need a free account token (OAuth or `Authorization: Bearer klsm_…`). - [API documentation](https://klassio.se/api/docs) ## How it works and where the data comes from - [Method](https://klassio.se/metod): how a classification is reached — retrieval over the nomenclature plus a judge that applies the General Interpretative Rules (GIR 1–6) and states which rule decided - [Technical method](https://klassio.se/metod/teknisk): pipeline, models and evaluation - [Data sources](https://klassio.se/datakallor): each source, its publisher and when it was last refreshed - [EUDR due diligence statement guide](https://klassio.se/dds) - [Guides (Swedish)](https://klassio.se/guider): HS vs CN vs TARIC codes, how to classify a product with the General Interpretative Rules, and binding tariff information (BKB/BTI) — each with primary sources ## Optional - [Terms and privacy](https://klassio.se/villkor)