How do I track a Japan Post package?

Paste the tracking number into the lookup on this page. We read Japan Post'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 Japan Post tracking API?

Yes. GET https://api.lastscanned.com/v1/track/:number?carrier=japanpost returns Japan Post 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 Japan Post tracking number look like?

UPU S10 (EMS, registered, parcel): AA123456785JP. For example EE123456785JP. lastscanned recognizes these formats on its own, so ?carrier=japanpost is optional for them.

Does this work for Japan Post and 日本郵便 and Japan EMS numbers?

Yes. They are tracked through Japan Post and come back as carrier "japanpost".

Can an AI agent track Japan Post packages?

Yes. Add lastscanned as an MCP server (https://mcp.lastscanned.com) in Claude, ChatGPT, Cursor or VS Code and ask it where a Japan Post parcel is.

Japan Post package tracking, and the API behind it.

Japan's national post: EMS, registered mail and international parcels. One free lookup a day, no sign-up.

Also known as Japan Post, 日本郵便, Japan EMS.

Japan Post tracking numbers

We recognize these formats from the number alone. For anything else from Japan Post, add ?carrier=japanpost.

UPU S10 (EMS, registered, parcel): AA123456785JP
Example (format only): EE123456785JP
Category: International posts and couriers
API carrier code: japanpost

Japan Post 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/EE123456785JP?carrier=japanpost"

Claude Code

claude mcp add --transport http lastscanned https://mcp.lastscanned.com

Then ask

> Where is my Japan Post package EE123456785JP? When will it arrive?

Japan Post tracking FAQ

How do I track a Japan Post package?: Paste the tracking number into the lookup on this page. We read Japan Post'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 Japan Post tracking API?: Yes. GET https://api.lastscanned.com/v1/track/:number?carrier=japanpost returns Japan Post 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 Japan Post tracking number look like?: UPU S10 (EMS, registered, parcel): AA123456785JP. For example EE123456785JP. lastscanned recognizes these formats on its own, so ?carrier=japanpost is optional for them.
Does this work for Japan Post and 日本郵便 and Japan EMS numbers?: Yes. They are tracked through Japan Post and come back as carrier "japanpost".
Can an AI agent track Japan Post packages?: Yes. Add lastscanned as an MCP server (https://mcp.lastscanned.com) in Claude, ChatGPT, Cursor or VS Code and ask it where a Japan Post parcel is.

Other carriers

Major carriers

International posts and couriers

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.

Get an API key Read the docs

	Carrier website	lastscanned API
Carriers	One carrier per site	125 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.