ガイドGuide· updated
Mercari Japan Saved Search Alerts From Outside Japan: The Fast Way
Mercari Japan sells the best-priced listings in minutes. If you're buying from outside Japan, the alerts built into the marketplaces won't get you there in time — and you can't sign up for most of them. Here's the short version of why, and the setup buyers abroad use instead: every new listing on all four Japanese marketplaces, in your Discord, Telegram, email or phone, within seconds.
Why the built-in alerts don't work from abroad
- Locked: Mercari's Japanese app only accepts a Japanese (+81) phone number, a Yahoo! JAPAN ID needs a Japanese mobile for SMS, and Yahoo! JAPAN doesn't serve the EU or UK at all. Mercari's app for overseas buyers lets you save searches, but only for Mercari.
- Slow: most arrive as digests — Mercari's alert emails twice a day at best, Rakuma's notifications at most twice a day. Instant exists only as push inside each Japanese app.
- Scattered: four apps, four accounts, Japanese keywords only — and nothing reaches Discord or Telegram.
Japan Alerts: every new listing, within seconds, from anywhere
Japan Alerts scans every new listing on Mercari, Yahoo! Auctions, Rakuma and Yahoo! Flea Market around the clock and alerts you within seconds of a match — no Japanese account, phone number or app, just an email address.
- Speed: new listings are typically caught within seconds, and Pro alerts fire the moment they are — Discord alerts even show how many seconds after listing we caught it.
- One search, four marketplaces: a single alert covers all four — including Yahoo! Flea Market, whose own app is Japanese-only.
- English in, Japanese matched: type “porter tanker” and we also match ポーター タンカー automatically.
- Alerts where you are: Discord, Telegram, email, browser push, or the live feed — with photo, price in yen and your currency, and a direct listing link for any proxy service.
- No noise: price range in your currency, up to 100 exclude words, condition, hide business sellers, categories — and ¥1-start auctions are never cut by your price floor.
- Deep Search (Pro): also polls the marketplaces' own search engines, which index descriptions — catching items buried in bundle lots.
Set it up in under a minute
- Sign in with your email — no password, no card for the free plan.
- Type what you're hunting, in English or Japanese; the preview shows real recent matches before you save.
- Pick where alerts go: link Telegram in two taps, paste a Discord webhook, or keep email and browser push.
- Buy through whichever proxy service you use — every alert links straight to the listing.
Tips for catching grails first
Set alerts on exact models and common misspellings — mistitled listings are the cheapest ones. Add exclude words ("junk", "parts", "box only") to keep alerts clean, and set your price cap in your own currency. For fast categories, Pro's instant delivery is the difference: the free plan sends the same finds as a digest every ~3 hours, and Pro sends each one the second it's caught.