What is Electronic USD (eUSD)?

Quick Facts

  • Type: Decentralized, asset-backed stablecoin
  • Peg: 1:1 with the US Dollar
  • Built with: Reserve Protocol
  • Blockchains: Ethereum, MobileCoin, Base, Arbitrum
  • Collateral: Yield-bearing stablecoins (aUSDC, aUSDT, cUSDC, cUSDT)
  • Governance: Community-governed, decentralized
  • Reserves: Auditable on-chain 24/7

Introduction

Electronic USD (eUSD) is a decentralized stablecoin pegged 1:1 to the US Dollar. It is built using the Reserve Protocol and is designed to be censorship-resistant, transparent, and cross-chain capable.

Unlike centralized stablecoins backed by bank deposits, eUSD holds its collateral in yield-bearing DeFi assets, making it a productive and decentralized alternative for both everyday payments and DeFi participation.

History & Background

In 2022, MobileCoin and Reserve announced their collaboration to launch eUSD — a stablecoin native to the MobileCoin ecosystem. The project aimed to bring a private digital dollar to market, one that could be used within privacy-preserving messaging and payment apps.

MobileCoin was founded with the goal of enabling fast, private, mobile-first crypto payments. The introduction of eUSD extended that vision by adding a stable, dollar-denominated asset to the network.

How Electronic USD Works

eUSD operates on multiple blockchains with a consistent design: it is backed 1:1 by a basket of yield-bearing stablecoins such as aUSDC and aUSDT — receipt tokens earned by depositing USDC and USDT on Aave and Compound.

On Ethereum, eUSD integrates with DeFi protocols like Curve Finance, enabling liquidity provision and yield generation. On the MobileCoin blockchain, eUSD inherits the network's end-to-end zero-knowledge encryption, enabling private, low-cost transactions with flat fees of approximately $0.0026 per transaction.

Proof of reserves is published on-chain continuously, providing real-time auditability without reliance on third-party auditors.

Tokenomics

eUSD's economic design is centered on stability and yield. Its collateral basket — drawn from Aave and Compound — naturally generates interest, which can accrue to holders or be used to strengthen reserves.

The token is over-collateralized, with RSR (Reserve Rights) tokens acting as a backstop. Community governance controls key parameters such as collateral composition and risk thresholds, keeping decision-making decentralized.

Circulating Supply ? 22.67 million eUSD
Total supply ? 22.67 million eUSD
Max supply ? -- eUSD
Updated 2h ago

Ecosystem & Use Cases

eUSD serves several distinct use cases across its supported networks:

  • DeFi yield: On Ethereum, users can provide liquidity on Curve and earn censorship-resistant yield.
  • Private payments: On MobileCoin, eUSD enables private dollar-denominated transfers inside mobile-first apps.
  • DAO treasuries: The stablecoin's censorship resistance makes it attractive for decentralized organizations seeking stable, non-custodial reserves.
  • Cross-chain utility: Availability on Base and Arbitrum broadens its DeFi reach.

Team, Governance & Community

The project is a joint effort between MobileCoin and the Reserve Protocol team. The MobileCoin Foundation plays a governance role, overseeing the election of authorized minters and the management of collateral.

On Ethereum, governance follows Reserve Protocol's community-driven model, where RSR holders can participate in decisions affecting eUSD's collateral and risk parameters.

Advantages

  • Censorship-resistant: Backed by decentralized DeFi receipt tokens, not bank deposits.
  • Yield-bearing collateral: Collateral assets actively earn interest in Aave and Compound.
  • Privacy-enabled: On MobileCoin, transactions use zero-knowledge encryption for private transfers.
  • Transparent reserves: On-chain proof of reserves available around the clock.
  • Multi-chain: Deployed on Ethereum, MobileCoin, Base, and Arbitrum.

Risks & Challenges

  • Smart contract risk: Collateral is held in third-party DeFi protocols (Aave, Compound), exposing eUSD to upstream vulnerabilities.
  • Governance centralization: The MobileCoin Foundation's role in authorizing minters introduces a degree of centralized oversight.
  • Regulatory uncertainty: Privacy features on MobileCoin may attract scrutiny as global crypto regulations evolve.
  • Collateral concentration: Reliance on a small basket of stablecoins means that a failure in any underlying asset could affect stability.

Long-Term Vision

eUSD aspires to be the leading private digital dollar — a stablecoin that is simultaneously useful in DeFi, accessible on mobile devices, and resistant to censorship. By combining Reserve Protocol's battle-tested collateral framework with MobileCoin's privacy technology, the project aims to serve users who need both financial stability and transactional privacy in an increasingly regulated digital economy.

Frequently Asked Questions

Electronic USD (eUSD) is a decentralized, 1:1 USD-pegged stablecoin built with the Reserve Protocol. It is backed by a basket of yield-bearing stablecoins and is available on Ethereum, MobileCoin, Base, and Arbitrum.

eUSD is backed by yield-bearing stablecoins such as aUSDC, aUSDT, cUSDC, and cUSDT — receipt tokens earned by depositing assets on Aave and Compound. This collateral is held on-chain and is auditable 24/7.

eUSD maintains its 1:1 USD peg through a diversified basket of dollar-denominated collateral and an over-collateralization mechanism backed by RSR tokens. Community governance can adjust collateral parameters to respond to market conditions.

Unlike USDC or USDT, which are backed by bank deposits or traditional assets, eUSD uses decentralized DeFi collateral and is community-governed. On MobileCoin, it also supports private transactions using zero-knowledge encryption.

Yes. On Ethereum, eUSD can be used in DeFi protocols like Curve Finance to earn yield. The collateral assets themselves also generate interest from Aave and Compound, which can benefit the eUSD ecosystem.

eUSD is available on Ethereum, MobileCoin, Base, and Arbitrum. Each chain serves different use cases, from DeFi yield farming to private mobile payments.

eUSD governance is shared between the community via the Reserve Protocol (where RSR holders can vote on collateral decisions) and the MobileCoin Foundation, which oversees the authorization of minters on the MobileCoin network.

On the MobileCoin blockchain, eUSD transactions use end-to-end zero-knowledge encryption, providing a degree of transactional privacy. On Ethereum and other EVM chains, transactions are publicly visible on-chain as with other ERC-20 tokens.