PAY.JP
Payfac / AggregatorPAY.JP is an online card payment API for businesses in Japan. It is run by PAY, Inc. (PAY株式会社) in Tokyo, a wholly owned subsidiary of the listed e-commerce company BASE, Inc. Merchants integrate it with an API, client libraries and mobile SDKs, and accept Visa, Mastercard, JCB, American Express, Diners Club and Discover in Japanese yen, plus Apple Pay and, through API v2, PayPay. Pricing is published in full. As of November 2026 the free Standard plan charges 3.3% on every card brand. The Business plan charges 2.78% for ¥20,000 a month, and the Enterprise plan charges 2.59% on Visa and Mastercard and 2.7% on other brands for ¥50,000 a month. There is no setup fee, no refund fee, and refunds cancel the processing fee. Each payout costs ¥250. Funds are paid slowly by international standards: with the default monthly cycle, a month's sales arrive at the end of the following month, and a twice-monthly cycle is available. PAY.JP signs the card companies' merchant agreements on your behalf as your agent, so you never deal with an acquirer directly. It serves only Japanese companies and residents, and it does not accept adult, gambling, crypto or tobacco merchants. Public review data is thin.