Live across Mercari · Rakuten · Yahoo

See Japan's luxury market before anyone else.

Every new listing across 18 luxury brands and Japan's biggest marketplaces, streamed into one terminal the moment it appears. Spot the underpriced piece while it's still there to buy.

See how it works
Free to search today's listings · PRO unlocks the live edge from £5.99/mo
Why it wins

The edge is being early.

Underpriced luxury on Japanese marketplaces doesn't last. The good pieces are gone in minutes. JapanMonitor is built around one idea: get you there first.

01 · Speed

See it first

Listings hit your terminal the instant they're posted — not on a delay, not after they've been picked over. When something's mispriced, minutes are the whole game.

02 · Coverage

One terminal, everything

Mercari, Rakuten and Yahoo Auctions — buy-it-now and closing auctions — across 18 luxury brands, in a single feed. No twelve tabs, no missed marketplace.

03 · The find

Built for arbitrage

Filter by brand, price and keyword. Convert to your currency and add real landed cost — shipping, proxy fees, import tax — so you know your true margin before you buy.

How it works

From listing to your screen in seconds.

The heavy lifting runs from Tokyo, around the clock. You just watch the feed.

01
We watch
Monitors track all 18 brands across every marketplace, non-stop, from inside Japan.
02
You filter
Narrow to your brands, price range and keywords. Hide the noise, keep the signal.
03
You cost it
Convert to your currency and add landed cost to see real margin at a glance.
04
You buy
Open straight to the listing, or to Buyee / ZenMarket to checkout through a proxy.
Pricing

Start free. Upgrade for the edge.

Search today's market for nothing. When you want to see listings the moment they land, go PRO.

Free
£0
for everyone, always
  • Search today's listings across all 3 marketplaces
  • All 18 brands, filters, keyword search
  • Currency conversion
  • Live feed on a delay
  • No closing auctions
PRO
£5.99/mo
the live edge
  • Everything in Free
  • Live feed — listings the second they appear
  • Closing auctions with live countdowns
  • Landed cost — your real margin, your fees
  • Ad-free
Field notes

The sourcing playbook.

How Japan buying actually works — proxies, fees, authentication and the marketplaces themselves. Written for people who resell.

Guides

Buyee vs ZenMarket: which proxy actually costs less?

A real breakdown of service fees, shipping and the hidden charges that decide your margin.

Read →
Playbook

Landed cost, explained: what a ¥10,000 bag really costs you

Domestic shipping, proxy fee, international leg, import tax — the full stack from Tokyo to your door.

Read →
Brands

Reading condition grades on Japanese listings

目立った傷なし, やや傷や汚れあり — decode the Japanese condition language before you bid.

Read →
More guides publishing weekly · this is where the SEO content will live

The next underpriced piece is being listed right now.

Open the terminal and start watching. Free to search — no card, no signup to look.