Track 4PX cross-border shipments handed off to UniUni (UUS… / JY…) across the US and Canada.

# 1. Query 4PX Worldwide Express middle-mile scans on the 92… barcode:
curl "https://api.lastscanned.com/v1/track/4PX3000987654321CN?carrier=4px" \
  -H "Authorization: Bearer lsk_live_YOUR_API_KEY"

# 2. Query USPS final-mile scans on the same barcode:
curl "https://api.lastscanned.com/v1/track/UUS52C1982374650" \
  -H "Authorization: Bearer lsk_live_YOUR_API_KEY"

const headers = { Authorization: `Bearer ${process.env.LASTSCANNED_API_KEY}` };
const res = await fetch(`https://api.lastscanned.com/v1/track/${encodeURIComponent(number)}`, { headers });
let pkg = await res.json();

// If USPS is still waiting on the consolidator parcel, query 4PX Worldwide Express middle-mile hubs:
if (pkg.carrier === "usps" && pkg.status === "label_created" && /^(420\d{5})?9[2345]/.test(number)) {
  const mid = await fetch(`https://api.lastscanned.com/v1/track/${encodeURIComponent(number)}?carrier=4px`, { headers });
  if (mid.ok) pkg = await mid.json();
}

claude mcp add --transport http lastscanned https://mcp.lastscanned.com \
  --header "Authorization: Bearer lsk_live_YOUR_API_KEY"