JPY DeFi, a DeFi protocol whose design and development DeltaForesight Inc. (CEO: Yusuke Jindo; "DeltaForesight") contributes to, launched on Ethereum mainnet on 15 October 2026.

JPY DeFi enables users to borrow JPYdf, a crypto-backed stablecoin designed to track the value of the Japanese yen, against wstETH or USDC.

With JPY DeFi, users can deposit crypto assets and other assets they hold as collateral and borrow JPYdf without selling them. If collateral values fall and a position's collateral ratio drops below the required threshold, however, the position may be liquidated. The yen is a currency with a long history in traditional finance, including foreign exchange markets, and is used in a wide range of financial products. On blockchains, however, opportunities to use assets linked to the yen have so far been limited. JPY DeFi aims to expand these opportunities.

Note: "Crypto-backed stablecoin" describes a design intended to maintain a stable value. JPYdf does not represent a yen-denominated monetary claim, a right to redemption in Japanese yen, or any other currency-denominated asset under Japan's Payment Services Act. Its market price can rise above or fall below ¥1. Tracking the value of the yen is a design objective only. Value linkage to the yen, price stability, redemption in Japanese yen, and preservation of principal are not guaranteed.

What is available at launch

  • Network: Ethereum mainnet
  • Collateral: wstETH and USDC, each with its own independent market (branch)
  • Borrowing: Users deposit collateral and borrow JPYdf within the collateral-ratio requirements. A borrowing position whose collateral ratio falls below the required level is liquidated.
  • Frontend: JPYdf Foundation DAO LLC (the "Foundation") provides a frontend for accessing JPY DeFi at https://app.jpydf.com
  • Documentation: https://jpydf.gitbook.io/jpy-defi

Eligibility

The Foundation neither provides nor markets its frontend to Restricted Persons as defined in its terms of use, including persons residing or located in the excluded countries and territories (including Japan and the United States) and sanctioned persons. See the terms of use for the full definitions and scope.

About JPY DeFi

JPY DeFi is a DeFi protocol that enables users to borrow JPYdf against crypto assets, stablecoins and other eligible collateral.

Under the protocol's design, JPYdf is issued on an overcollateralised basis, backed by assets deposited by users and governed by rules encoded in smart contracts. Users can borrow JPYdf without selling their holdings. If collateral values fall and a position's collateral ratio drops below the required threshold, however, the position may be liquidated.

About DeltaForesight Inc.

DeltaForesight provides B2B services and develops products focused on crypto assets and stablecoins. The company works across regulation, business, and technology to turn ideas into solutions that can be implemented.

  • Company name: DeltaForesight Inc.
  • Founded: 10 September 2025
  • Representative Director and CEO: Yusuke Jindo
  • Business activities: Consulting, marketing, and product development
  • Website: https://deltaforesight.com/

Media enquiries

DeltaForesight Inc.

Email: info@deltaforesight.com

Website: https://deltaforesight.com/

Note: DeltaForesight is a contributor to the design and development of JPY DeFi. JPYdf is issued and burned according to rules encoded in smart contracts.

Note: JPYdf is not issued in exchange for Japanese yen or other fiat currencies. It is not fiat currency, a bank deposit, or a claim to either. No particular corporation or other entity promises to repurchase it at face value. Its price may deviate from its target or decline.

Note: Use of JPYdf involves risks related to fluctuations in crypto-asset prices and collateral values, liquidation due to insufficient collateral, the protocol's redemption mechanism, oracles, smart contracts, external services, and other factors.

Note: This release does not constitute a solicitation to acquire or trade any financial instrument or crypto asset, nor a solicitation of Restricted Persons under the terms of use to use the frontend.

Note: The Foundation may change or suspend frontend features or access for maintenance, incident response, security or compliance with law.

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