Jamm

Fintech · Account-to-account payments

Jamm is a Japanese fintech company providing account-to-account online payments. Consumers pay merchants directly from a registered bank account without a credit card, including for one-time purchases and recurring payments. The service connects with more than 300 banks and supports refunds.

Merchants can integrate Jamm through its API and SDKs or use a no-code dashboard to create payment links and process withdrawals from CSV files. Jamm earns revenue from merchant service fees; its website lists a 1.8% payment fee, rising to 2.2% from 2027, with no setup or monthly fixed charge. Individual users pay no fee directly to Jamm.