UniUni package tracking, and the API behind it.
UniUni's last-mile network across North America, the leg after many cross-border carriers. One free lookup a day, no sign-up.
Also known as UniUni Express.
UniUni tracking numbers
We recognize these formats from the number alone. For anything else from UniUni, add ?carrier=uniuni.
- UniUni
- UUS + 13–16 letters and digits
- Partner labels
- UR, U9999 or U000 + digits
- Example (format only)
- UUSC000019638703
- Category
- Regional US last mile
- API carrier code
- uniuni
UniUni tracking API quickstart
One request per number, or up to 100 at once with ?numbers=a,b,c. Your agents can use the same data over MCP.
REST
curl "https://api.lastscanned.com/v1/track/UUSC000019638703?carrier=uniuni"Claude Code
claude mcp add --transport http lastscanned https://mcp.lastscanned.comThen ask
> Where is my UniUni package UUSC000019638703? When will it arrive?
UniUni tracking FAQ
- How do I track a UniUni package?
- Paste the tracking number into the lookup on this page. We read UniUni's own tracking data and show every scan, the current status and the delivery details. Anyone can do one lookup a day without signing up.
- Is there a UniUni tracking API?
- Yes. GET https://api.lastscanned.com/v1/track/:number?carrier=uniuni returns UniUni tracking as JSON, in the same shape as every other carrier lastscanned covers. Sign up for a free key with 5 lookups a day, or Pro for $4.99 a month with 1,000 numbers.
- What does a UniUni tracking number look like?
- UniUni: UUS + 13–16 letters and digits; Partner labels: UR, U9999 or U000 + digits. For example UUSC000019638703. lastscanned recognizes these formats on its own, so ?carrier=uniuni is optional for them.
- Does this work for UniUni Express numbers?
- Yes. They are tracked through UniUni and come back as carrier "uniuni".
- Can an AI agent track UniUni packages?
- Yes. Add lastscanned as an MCP server (https://mcp.lastscanned.com) in Claude, ChatGPT, Cursor or VS Code and ask it where a UniUni parcel is.
Other carriers
Major carriers
Regional US last mile
Tracking pages are for people. This is for your code.
Every carrier shows a parcel differently. lastscanned reads them all and answers in one shape, so your app, your spreadsheet or your agent handles any carrier the same way.
| Carrier website | lastscanned API | |
|---|---|---|
| Carriers | One carrier per site | 18 carriers behind one endpoint |
| Response | A web page to read | The same JSON for every carrier |
| Volume | One number at a time | Up to 100 numbers per request |
| Agents | Copy and paste | MCP server for Claude, ChatGPT and Cursor |
| Automation | Check back by hand | Poll from your own code or workflow |
Free: 5 numbers a day with a key. Pro: $4.99 a month for 1,000 numbers, then $0.015 each.