List US trade policy changes
policy_changes_sinceRead-onlyIdempotent
List US trade policy changes Gateway has published since a given date: new tariff actions, rate changes, effective dates and expirations. Use to answer "what changed recently" or "what is coming".
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | Max entries to return, default 20, max 50. | |
| since | No | ISO date, e.g. "2026-07-01". Filters on when Gateway PUBLISHED the change. Defaults to 30 days ago. |
Output Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| count | No | ||
| since | No | The date filtered on, ISO. | |
| source | No | ||
| changes | No | ||
| gateway | No | ||
| disclaimer | No | ||
| guest_lookups_remaining | No |