# JYExpress Tracking API & MCP

URL: https://docs.lastscanned.com/carriers/jyexpress

Query live **JYExpress** (`jyexpress`) package status and scan history in a single synchronous `GET` request or MCP tool call. JYExpress numbers share their shape with China Post and DHL numbers, so pass `?carrier=jyexpress`.

## Overview & Quick Facts

| Property | Value |
|---|---|
| **Carrier slug (`?carrier=`)** | `jyexpress` |
| **Brand aliases** | JYExpress, JY Express, JY-Express |
| **Category** | Cross-border e-commerce parcels |
| **Single-package REST endpoint** | `GET https://api.lastscanned.com/v1/track/{trackingNumber}?carrier=jyexpress` |
| **Batch REST endpoint** | `GET https://api.lastscanned.com/v1/track?numbers=...,...&carrier=jyexpress` |
| **MCP server (`https://mcp.lastscanned.com`)** | `track_package`, `track_packages`, `list_carriers` |
| **Authentication & pricing** | `Authorization: Bearer lsk_live_...` · 1 free keyless lookup/day per IP |

## Tracking Number Formats & Auto-Detection

| Pass | Rule / Regex | Check Digit | Examples |
|---|---|---|---|
| **Pass 1 (`matches`)** | none | none | none |
| **Pass 2 (`mayMatch`)** | none | none | none |

JYExpress tracking numbers are mostly China Post S10 numbers (`LN123456789CN`, `RS123456789CN`) or 10 digits, and other carriers own those shapes, so always pass `?carrier=jyexpress`. The tracker also accepts the shipper's reference number and the JY invoice number.

## Synchronous `GET` Request & Normalized JSON Response

```bash
curl -s "https://api.lastscanned.com/v1/track/LN123456789CN?carrier=jyexpress" \
  -H "Authorization: Bearer $LASTSCANNED_API_KEY"
```

```json
{
  "carrier": "jyexpress",
  "trackingNumber": "LN123456789CN",
  "status": "delivered",
  "statusDescription": "Delivered, Front Door/Porch",
  "service": "广州EUB",
  "deliveredAt": null,
  "deliveredAtLocal": "2026-02-14T14:32:00",
  "signedBy": null,
  "destination": { "city": null, "state": null, "country": "US" },
  "message": null,
  "events": [
    {
      "timestamp": null,
      "localTime": "2026-02-14T14:32:00",
      "status": "delivered",
      "description": "Delivered, Front Door/Porch",
      "location": "TINLEY PARK, IL 60477",
      "code": null
    },
    {
      "timestamp": null,
      "localTime": "2026-02-07T22:44:00",
      "status": "in_transit",
      "description": "收寄",
      "location": "广州市邮政速递物流公司国际业务分公司",
      "code": null
    }
  ]
}
```

## Notes

- **Scan wording**: scans are in Chinese for the Chinese leg and in the destination post's English (USPS, DHL) for the rest.
- **Time zone**: scan times come with no zone and span China and the destination, so `localTime` is each scan's own clock time and `timestamp` and `deliveredAt` are `null`.
- **Batches**: up to 20 numbers go to JYExpress in one request.
- **Platform**: JYExpress runs the Hualei (华磊) tracker, which other Chinese forwarders also use.

## Related Resources

- **Regex & check digits**: [Tracking number formats & auto-detection](/formats)