What changed in US tariffs today
US trade policy changes weekly: Section 232 and 301 actions, de-minimis rules, exclusion lists, antidumping orders, forced-labor measures. tariff.watch reads every trade-relevant Federal Register document daily and records each change with its legal status, effective date, and a link to the primary source. Humans get this changelog; agents get immutable Markdown snapshots, feeds, and a JSON API.
Upcoming deadlines
Latest trade actions
Built for AI agents
Copy this link to your LLM of choice for instant context
https://tariff.watch/snapshot/latest.md # last 7 days, regenerated daily
For commercial use we offer a usage-based API
https://tariff.watch/feed.xml # every change, source-linked, any reader, no key
claude mcp add --transport http tariff-watch https://tariff.watch/mcp \
--header "Authorization: Bearer $TARIFF_WATCH_KEY"
# any other MCP client
{ "mcpServers": { "tariff-watch": {
"type": "http",
"url": "https://tariff.watch/mcp",
"headers": { "Authorization": "Bearer fk_..." } } } }
export TARIFF_WATCH_KEY="fk_..." curl -H "Authorization: Bearer $TARIFF_WATCH_KEY" "https://tariff.watch/v1/changes?since=2026-06-01" curl -H "Authorization: Bearer $TARIFF_WATCH_KEY" https://tariff.watch/snapshot/2026-06-09.md
Pricing
Pricing plans
Free during launch; then US$0.10 per API call
Your first 30 API calls are free via signup credit after billing is enabled. Best for trying the API, MCP tools, and dated archive without a subscription floor; cancel anytime.
$29 / month
500 API calls included every month, plus watchlist alerts by email and HMAC-signed webhook. Overage at US$0.10 per call. Cancel anytime.
$290 / year
7,500 API calls included for the year at a better effective rate, plus the same watchlist alerts and webhook delivery.
Questions
Where does the data come from?
Every entry is an original one-line record of a Federal Register document: USTR, CBP, ITA, ITC, BIS, the Foreign-Trade Zones Board, and presidential tariff documents. US government works are public domain (17 U.S.C. §105).
What do the statuses mean?
Proposed, final, and effective come from the document type and its stated effective date. Court-driven statuses appear only when pinned to a specific document. The primary source is always one click away.
What does immutable mean here?
Each day's snapshot freezes when it is generated. /snapshot/2026-06-09.md returns the same bytes next year, so software can prove what was known on a date.
Is this legal advice?
No. It is a changelog of public records. For decisions with money on the line, read the linked document or ask a licensed professional.