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