According to Japan's FSA register (read 2026-09-22), registered crypto-asset exchange service providers listing MKR for trading: 3.
Source: Financial Services Agency website, "List of registered crypto-asset exchange service providers". Takame rearranged the register's "crypto assets handled" column by coin (read 2026-09-22); this page is not published by the FSA. Official file (FSA)
Name in the register: メイカー
| Registered provider | Registration no. | Score |
|---|---|---|
| Custodiem関東財務局長 第00002号 | — | |
| bitFlyer関東財務局長 第00003号 | 8.0 | |
| OKJ (OKCoin Japan)関東財務局長 第00020号 | — |
The register's own note says the crypto assets it lists have only been confirmed, based on each provider's explanation, to meet the definition in the Payment Services Act. The FSA does not guarantee their value or recommend them.