# TopYou Tracking API & MCP

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

Query live **TopYou** (`topyou`) package status and scan history in a single synchronous `GET` request or MCP tool call. TopYou number shapes are not documented, so pass `?carrier=topyou`.

## Overview & Quick Facts

| Property | Value |
|---|---|
| **Carrier slug (`?carrier=`)** | `topyou` |
| **Brand & service aliases** | TopYou, Topyou Express, Shenzhen Tongyou (通邮集团), szty56 |
| **Category** | Chinese cross-border e-commerce forwarder |
| **Single-package REST endpoint** | `GET https://api.lastscanned.com/v1/track/{trackingNumber}`?carrier=topyou |
| **Batch REST endpoint** | `GET https://api.lastscanned.com/v1/track?numbers=...&carrier=topyou` |
| **MCP server (`https://mcp.lastscanned.com`)** | `track_package`, `track_packages`, `list_carriers` (`claude mcp add --transport http lastscanned https://mcp.lastscanned.com`) |
| **Authentication & pricing** | `Authorization: Bearer lsk_live_...` · **1 free keyless lookup/day per IP** · **Free tier** (5 unique numbers/day, $0) · **Pro** ($4.99/mo for 1,000 unique numbers, unlimited re-polls, $0.015/extra) |

## Tracking Number Formats & Auto-Detection

| Pass | Rule / Regex | Examples |
|---|---|---|
| **Pass 1 (`matches`)** | *None* (use `?carrier=topyou`) | n/a |
| **Pass 2 (`mayMatch`)** | *None* | n/a |

**Required**: always pass `?carrier=topyou`; no shape is claimed in auto-detection.

## Synchronous `GET` Request & Normalized JSON Response

### `curl`

```bash
curl -s "https://api.lastscanned.com/v1/track/TY1234567890?carrier=topyou" \
  -H "Authorization: Bearer $LASTSCANNED_API_KEY"
```

### MCP `track_package` tool call

```json
{
  "tool": "track_package",
  "arguments": { "tracking_number": "TY1234567890", "carrier": "topyou" }
}
```

### Normalized `TrackingResult` JSON response

```json
{
  "carrier": "topyou",
  "trackingNumber": "TY1234567890",
  "status": "in_transit",
  "statusDescription": "Departed from sorting center",
  "service": null,
  "deliveredAt": null,
  "deliveredAtLocal": null,
  "signedBy": null,
  "destination": { "city": null, "state": null, "country": "US" },
  "message": null,
  "events": [
    {
      "timestamp": null,
      "localTime": "2026-10-21T14:05:00",
      "status": "in_transit",
      "description": "Departed from sorting center",
      "location": "Shenzhen",
      "code": null
    },
    {
      "timestamp": null,
      "localTime": "2026-10-19T10:00:00",
      "status": "in_transit",
      "description": "Received at warehouse",
      "location": "Shenzhen",
      "code": null
    }
  ]
}
```

## Notes

- **Source**: the JSON API behind `track.szty56.com` (`POST /order/track`); several numbers go in one request.
- **Statuses**: TopYou's own codes (pre-alert, warehouse in/out, transfer, destination country, customs, delivered, exception, returned) set the overall `status`.
- **Handoff**: when TopYou gives a transfer number for a partner carrier, it appears in `message`.
- **Times**: scans carry no zone, so only `localTime` is set.

## Related Resources

- **Carrier hub**: [All supported carriers](/carriers)
- **Regex & check digits**: [Tracking number formats & auto-detection](/formats)
- **AI support workflows**: [WISMO AI agents & synchronous tracking](/wismo)