CBAM Data tells an EU importer what a shipment costs under the Carbon Border Adjustment Mechanism. Enter a CN code, the country of origin, the tonnes and the year. You get back whether the goods are in scope, which default value applies, how many certificates you need, what they cost in euro and when they're due. The answer cites the article of the regulation behind it and the dataset version it came from.
The free calculator on cbamdata.eu needs no account. The Importer plan watches up to 50 CN code and origin pairs and sends an email when a value moves. The Developer plan adds the API: one endpoint, /v1/resolve, 5 keys sharing 50,000 calls a month, a webhook on every watch and an MCP server for AI agents. ERP and customs software vendors use it to put CBAM costs inside their own product.
When the Commission replaced the default values on 31 Jul 2026, it published a new PDF with no list of what changed. CBAM Data publishes that list. A dataset release comes with that diff, and a change gets its own page and an alert.
CBAM Data is independent of the European Commission.