Changelog

Changes to the tariff data we serve, the government notices we read, and what shipped in the API, newest first. Data changes and notices marked "Affects our rates" change what the API returns; API changes are releases. Current API version v1.

API change

New API Dashboard

We have refreshed the API dashboard to include more details around API credits, API keys usage and billing.

API change

HTS source on API response

We have added the official source on every API response. You can now always verify the official sources by yourself for every API call.

API change

Better Data Accuracy

We have increased our audit process to increase the data accuracy, including unique cases like the reversal of teh IEEPA tariffs under the current administration.

API change

MCP server connection

Speak directly to TariffsAPI database through our MCP endpoint 🔥

API change

Batch resolve endpoint

You can now query several rates at a time, up to 150 rates in one API call. This is perfect if you have high needs and product interations.

API change

Country-Aware Tariff Resolution (Section 301, Trade Agreements & HTS Inheritance)

“Given an HTS code and a country of origin, what tariffs apply today?” - Try out the /resolve endpoint and our updated tariffs calculator.

API change

Automatic inheritance when exact matches aren't found

querying 8541.10.00.80 will return tariffs from 8541.10.00 when the child has no tariffs.