track-tariff-trends
Use this skill when the user asks about a country's MFN applied tariff rate: how it evolved over time, what the All-products average is today, or the optional US effective-rate snapshot (FRED customs duties / goods imports).
Entitlement: this operation is Pro-gated (entitlement tier ≥ 1). A key on the free tier receives empty data (upstreamUnavailable: true) from the browser path, or 403 when the gateway enforces the premium RPC.
Authentication
Server-to-server callers (agents, scripts, SDKs) MUST present an API key in the X-WorldMonitor-Key header. Authorization: Bearer … is for MCP/OAuth or Clerk JWTs — not raw API keys.
X-WorldMonitor-Key: wm_0123456789abcdef0123456789abcdef01234567
Issue a key at https://www.worldmonitor.app/pro.
Endpoint
GET https://api.worldmonitor.app/api/trade/v1/get-tariff-trends
Parameters
| Name | In | Required | Shape | Notes |
|---|---|---|---|---|
reporting_country | query | no | 3-digit UN M49 (840 = US) | Empty defaults to 840. Malformed → HTTP 400. |
partner_country | query | no | 3-digit UN M49 | Accepted for forward compatibility; does not filter the series. … |
