Proxies
The six services in the dataset
Buyee
Flat service fee per order, a rough domestic-postage range, and a postal customs-brokerage fee above a merchandise threshold.
ZenMarket
Shop-dependent service fee from ZenMarket's own fee page. The standard amount is 500 yen per line. Mercari and JDirectItems Auction are 800 yen. Recommended Stores are 300 yen, and that list was not copied, so 300 yen is not applied.
Neokyo
Service fee is 350 yen once per buy request of the same item. Packing is 500 yen up to 2 kg, then 150 yen per extra kilogram, and is not covered above 30 kg.
Tenso
A per-order purchase-request fee, a separate Rakuten and Amazon schedule, forwarding fees, and an EMS discount stated only as a range.
FROM JAPAN
Handling fee is 500 yen per item in Charge 2. Domestic postage and international postage stay blank because the help center gives them as actual cost, not a schedule.
White Rabbit Express
An affiliate program exists on Refersion. No numeric buyer fee was verified from an official White Rabbit Express page on 2026-10-15, so none is stored.