# CJ Logistics (CJ Korea Express / 대한통운) Tracking API & MCP

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

Query live **CJ Logistics** (`cjlogistics`, CJ대한통운 domestic parcel) package status and scan history in a single synchronous `GET` request or MCP tool call. Scan times are Korean local time and come back with UTC timestamps. Pass `?carrier=cjlogistics`: CJ's 10- and 12-digit waybills share their shape with DHL Express and FedEx.

## Overview & Quick Facts

| Property | Value |
|---|---|
| **Carrier slug (`?carrier=`)** | `cjlogistics` |
| **Brand & service aliases** | CJ Logistics, CJ대한통운, CJ Korea Express, 대한통운 택배 |
| **Category** | South Korea domestic parcel |
| **Single-package REST endpoint** | `GET https://api.lastscanned.com/v1/track/{trackingNumber}?carrier=cjlogistics` |
| **Batch REST endpoint** | `GET https://api.lastscanned.com/v1/track?numbers=123456789012,123456789012&carrier=cjlogistics` |
| **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) · **HTTP 402 Stripe MPP** ($0.50 for 25-number `lsk_pack_` key or $0.02/number in USDC on Tempo) |

## Tracking Number Formats & Auto-Detection (`matches` vs `?carrier=cjlogistics`)

| Pass | Rule / Regex | Check Digit | Examples |
|---|---|---|---|
| **Pass 1 (`matches`)** | *None* | — | — |
| **Pass 2 (`mayMatch`)** | `/^(\d{10}\|\d{12})$/` | — | `6811234567`, `612345678901` |
| **Explicit (`?carrier=cjlogistics`)** | Any CJ waybill | — | `123456789012` |

### When is `?carrier=cjlogistics` optional vs required?

- **Required**: CJ waybills are plain 10- or 12-digit runs, which [FedEx](/carriers/fedex) and [DHL](/carriers/dhl) also use, so auto-detection never picks CJ on its own. Always pass `?carrier=cjlogistics` for these numbers.

## Synchronous `GET` Request & Normalized JSON Response

```bash
curl -s "https://api.lastscanned.com/v1/track/123456789012?carrier=cjlogistics" \
  -H "Authorization: Bearer $LASTSCANNED_API_KEY"
```

```ts
const res = await fetch("https://api.lastscanned.com/v1/track/123456789012?carrier=cjlogistics", {
  headers: { Authorization: `Bearer ${process.env.LASTSCANNED_API_KEY}` },
});
const pkg = await res.json();
console.log(pkg.status, pkg.events[0]);
```

MCP `track_package` tool call:

```json
{
  "tool": "track_package",
  "arguments": { "tracking_number": "123456789012", "carrier": "cjlogistics" }
}
```

Normalized `TrackingResult` response:

```json
{
  "carrier": "cjlogistics",
  "trackingNumber": "123456789012",
  "status": "delivered",
  "statusDescription": "배송완료 고객님의 상품이 배송완료 되었습니다.",
  "service": null,
  "deliveredAt": "2026-10-21T07:05:00Z",
  "deliveredAtLocal": "2026-10-21T16:05:00",
  "signedBy": null,
  "destination": null,
  "events": [
    {
      "timestamp": "2026-10-21T07:05:00Z",
      "localTime": "2026-10-21T16:05:00",
      "status": "delivered",
      "description": "배송완료 고객님의 상품이 배송완료 되었습니다.",
      "location": "서울동작",
      "code": null
    },
    {
      "timestamp": "2026-10-20T16:42:00Z",
      "localTime": "2026-10-21T01:42:00",
      "status": "in_transit",
      "description": "간선하차 접수하신 물품이 중계점에 도착하였습니다",
      "location": "곤지암Hub",
      "code": null
    }
  ]
}
```

## Notes

- **Source**: the two JSON endpoints behind CJ's own tracker page (`trace.cjlogistics.com`), no account or key. A number CJ does not know returns `not_found`.
- **Korean wording**: `description` is CJ's own Korean text (a step name followed by its sentence). `status` is mapped from the Korean step names such as 집화 (pickup), 간선상차/하차 (linehaul), 배송출발 (out for delivery) and 배송완료 (delivered).
- **Times**: every scan is in South Korea, so each event carries `timestamp` in UTC computed from `Asia/Seoul`.

## Related Resources

- **Live browser lookup tool**: [Track a CJ Logistics package live on lastscanned.com/lookup/cjlogistics](https://lastscanned.com/lookup/cjlogistics)
- **Carrier hub**: [All supported carriers](/carriers)
- **Regex & check digits**: [Tracking number formats & auto-detection](/formats)
- **AI support workflows**: [WISMO AI agents & synchronous tracking](/wismo)