# UniUni Tracking API & MCP

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

Query live **UniUni** (`uniuni`) package status and scan history across the US and Canada in a single synchronous `GET` request or MCP tool call. `lastscanned` auto-detects primary `UUS…` tracking numbers in Pass 1 and `UR…` / `U9999…` / `U000…` partner numbers in Pass 2, returning a normalized `TrackingResult` JSON payload—without requiring a UniUni enterprise shipper contract or webhook integration.

## Overview & Quick Facts

| Property | Value |
|---|---|
| **Carrier slug (`?carrier=`)** | `uniuni` |
| **Brand & service aliases** | UniUni, UniUni Express, UniUni US & Canada Last-Mile |
| **Category** | US & Canada e-commerce last-mile carrier (Detection precedence **#7 of 31**) |
| **Single-package REST endpoint** | `GET https://api.lastscanned.com/v1/track/{trackingNumber}` |
| **Batch REST endpoint** | `GET https://api.lastscanned.com/v1/track?numbers=UUS...,UUS...` (up to 35 numbers per carrier in a 100-number call) |
| **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) |

## Why developers use `lastscanned` for UniUni

- **No merchant shipper account required**: UniUni's shipper API is gated behind commercial onboarding for direct e-commerce merchants and 3PLs. With `lastscanned`, any application or AI support agent can track UniUni parcels immediately via `GET /v1/track/:number`.
- **Translates opaque numeric state codes**: UniUni's raw payload reports numeric state codes (`190`, `195`, `200`, `202`, `203`, `211`, `213`, `230`, `1870`) and oldest-first scan arrays. `lastscanned` reverses the timeline to newest-first and normalizes every state code into the 7 standard statuses.
- **Seamless cross-border handoff target**: Parcels originating on [YunExpress](/carriers/yunexpress), [Yanwen](/carriers/yanwen), [4PX](/carriers/4px), or [Cainiao](/carriers/cainiao) frequently hand off to UniUni for North American final delivery.

## Tracking Number Formats & Auto-Detection (`matches` vs `mayMatch`)

UniUni is evaluated **seventh (#7)** in `lastscanned`'s two-pass detector and uses both Pass 1 (`matches`) and Pass 2 (`mayMatch`):

| Pass | Rule / Regex | Check Digit | Examples |
|---|---|---|---|
| **Pass 1 (`matches`) — Primary `UUS`** | `/^UUS[0-9A-Z]{13,16}$/i` (`UUS` + 13–16 alphanumeric characters = 16–19 chars) | — | `UUS5BM1269395824723`, `UUSC000019638703` |
| **Pass 2 (`mayMatch`) — Partner `UR` / `U9999` / `U000`** | `/^(UR\d{12,20}\|U9999\d{6,20}\|U000\d{6,20})$/i` | — | `UR07270000003615622`, `U999912345678`, `U000123456789` |

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

- **Optional (auto-detected in Pass 1)**: All `UUS` + 13–16 alphanumeric tracking numbers.
- **Optional (auto-detected in Pass 2)**: `UR` + 12–20 digits, `U9999` + 6–20 digits, and `U000` + 6–20 digits. Because these formats sit in Pass 2 (`mayMatch`), they route to `uniuni` whenever no Pass 1 carrier claims the number.
- **Required (`?carrier=uniuni`)**: Canadian / partner barcodes starting with `GV…` or `JY…` (such as `GV2601…CAA0…` or `JY2601…CAA0…`). Pass `?carrier=uniuni` when querying these numbers.

## Synchronous `GET` Request & Normalized JSON Response

### `curl`

```bash
curl -s "https://api.lastscanned.com/v1/track/UUS5BM1269395824723" \
  -H "Authorization: Bearer $LASTSCANNED_API_KEY"
```

### JavaScript / TypeScript (`fetch`)

```ts
const res = await fetch("https://api.lastscanned.com/v1/track/UUS5BM1269395824723", {
  headers: { Authorization: `Bearer ${process.env.LASTSCANNED_API_KEY}` },
});
const pkg = await res.json();
console.log(pkg.status, pkg.statusDescription, pkg.deliveredAt);
```

### MCP `track_package` tool call

```json
{
  "tool": "track_package",
  "arguments": {
    "tracking_number": "UUS5BM1269395824723"
  }
}
```

### Normalized `TrackingResult` JSON response

```json
{
  "carrier": "uniuni",
  "trackingNumber": "UUS5BM1269395824723",
  "status": "delivered",
  "statusDescription": "Delivered",
  "service": null,
  "deliveredAt": "2026-10-24T21:18:42Z",
  "deliveredAtLocal": "2026-10-24T14:18:42",
  "signedBy": null,
  "destination": {
    "city": "LOS ANGELES",
    "state": "CA",
    "country": "US"
  },
  "estimatedDelivery": null,
  "events": [
    {
      "timestamp": "2026-10-24T21:18:42Z",
      "localTime": "2026-10-24T14:18:42",
      "status": "delivered",
      "description": "Delivered",
      "location": "Los Angeles, CA",
      "code": "203"
    },
    {
      "timestamp": "2026-10-24T15:04:10Z",
      "localTime": "2026-10-24T08:04:10",
      "status": "out_for_delivery",
      "description": "Out for delivery",
      "location": "Los Angeles, CA",
      "code": "202"
    },
    {
      "timestamp": "2026-10-24T06:31:55Z",
      "localTime": "2026-10-23T23:31:55",
      "status": "in_transit",
      "description": "Arrived at UniUni facility",
      "location": "Los Angeles, CA",
      "code": "195"
    },
    {
      "timestamp": null,
      "localTime": "2026-10-21T05:46:35",
      "status": "label_created",
      "description": "Order received",
      "location": null,
      "code": "190"
    }
  ]
}
```

> **Raw status & state codes**: `events[].code` preserves UniUni's numeric `state` code as a string (`"190"` / `"1870"` → `label_created`; `"202"` → `out_for_delivery`; `"203"` / `"216"` / `"228"` → `delivered`; `"230"` → `returned`; `"206"`, `"207"`, `"209"`, `"211"` failed attempt, `"215"`, `"222"`, `"229"`, `"235"` → `exception`; `"195"`, `"199"`, `"200"`, `"212"`, `"213"`, `"217"`, `"220"` → `in_transit`).

## Carrier-Specific Status & Integration Notes

- **Timestamps (`timestamp` vs `localTime`)**: Physical hub and driver scans include both a Unix epoch (`ts`), local clock (`localTime`), and IANA `timezone`, populating both `timestamp` (UTC) and `localTime`. The initial electronic *"Order received"* scan (`190`/`1870`) carries no timezone, so `timestamp` is `null` and `localTime` holds the printed timestamp.
- **Failed delivery attempts vs depot returns**: State `211` (failed delivery attempt) maps to `exception`, whereas state `213` (parcel returned to local UniUni depot for redelivery) maps to `in_transit` and state `230` (returned to merchant/sender) maps to `returned`.

## Related Resources

- **Live browser lookup tool**: [Track a UniUni package live on lastscanned.com/lookup/uniuni](https://lastscanned.com/lookup/uniuni)
- **Carrier hub**: [All 31 supported carriers](/carriers)
- **Regex & check digits**: [Tracking number formats & auto-detection](/formats)
- **AI support workflows**: [WISMO AI agents & synchronous tracking](/wismo)