What is Metronome Synth ETH (MSETH)?

Quick Facts

  • Symbol: MSETH (also written msETH)
  • Type: Synthetic Ethereum asset
  • Protocol: Metronome Synth
  • Chains: Ethereum, Optimism, Base
  • Cross-chain standard: LayerZero Omnichain Fungible Token (OFT)
  • Protocol launch: January 2023 (beta)
  • Governance: MetronomeDAO via the MET/esMET token

Introduction

Metronome Synth ETH (msETH) is a synthetic asset that tracks the price of Ether (ETH). It is minted inside the Metronome Synth protocol by users who post crypto assets as collateral, giving them price exposure to ETH without needing to hold it directly.

msETH belongs to the family of msAssets — protocol-native synthetics that also include msUSD and msBTC. Together they form a unified synthetic ecosystem designed for capital-efficient DeFi strategies.

History & Background

Metronome Synth launched in beta in January 2023, marking the protocol's evolution into a full synthetic-asset platform. The Optimism deployment followed in June 2023, offering users lower transaction fees. In 2024, the protocol integrated LayerZero, upgrading its msAssets to Omnichain Fungible Tokens so they could move freely across supported networks. Base was added in mid-2025 after a successful governance vote.

How Metronome Synth ETH Works

msETH is created through a collateral-and-mint model. Users deposit supported assets — ranging from ETH and USDC to yield-bearing tokens such as Vesper vPool shares — into the Metronome smart contracts. The protocol is overcollateralized, meaning depositors must always hold more collateral value than the synthetics they have minted.

If a position falls below its required collateral ratio, a liquidation is triggered. A risk-scoring framework assesses each collateral asset across factors like volatility, liquidity, and smart contract complexity, similar to the methodology used by Aave and Compound.

Once minted, msETH can be swapped for other msAssets on the Synth Marketplace with zero slippage, traded on external DEXes, or deployed in yield-farming strategies.

Tokenomics

msETH has no fixed supply cap — its supply expands and contracts based on user minting and redemption activity. Every unit in circulation is backed by overcollateralized deposits, so the token's economic integrity depends on the health of the collateral pool rather than a pre-set emission schedule.

Protocol fees, including a 0.25% swap fee and a liquidation fee shared between liquidators and the protocol, flow back into the Metronome ecosystem. The MET token powers governance and utility across the platform, while esMET (earned by locking MET) confers voting rights within MetronomeDAO.

Circulating supply ? 21,711 MSETH
Total supply ? 21,711 MSETH
Max supply ? -- MSETH
Updated 4d ago

Ecosystem & Use Cases

  • Synthetic ETH exposure without holding native ETH directly
  • Zero-slippage swaps between msAssets on the Synth Marketplace
  • Yield farming by looping productive collateral for enhanced APY
  • DeFi composability — msETH can be used in lending, liquidity pools, and other external protocols
  • Cross-chain portability via LayerZero OFT standard across Ethereum, Optimism, and Base

Team, Governance & Community

Metronome is governed by MetronomeDAO, where MET holders lock their tokens to receive esMET and gain voting power. Governance proposals — known as MIPs — have shaped key upgrades, including expanding mint caps and enabling msAssets to be minted directly into external lending markets.

The protocol runs a live bug bounty program on Immunefi to encourage responsible security disclosures.

Advantages

  • Capital efficiency — yield-bearing assets can serve as collateral, earning passive returns while backing msETH
  • Zero-slippage swaps between synthetic assets within the Metronome Marketplace
  • Omnichain design — LayerZero integration allows seamless msETH transfers across multiple chains
  • Robust risk framework — overcollateralization and a multi-factor scoring model protect protocol solvency
  • DAO governance — community-driven parameter changes via MetronomeDAO

Risks & Challenges

  • Smart contract risk — as with all DeFi protocols, bugs or exploits in the Synth Engine could affect users
  • Collateral volatility — sharp market moves can trigger liquidations if collateral ratios are breached
  • Peg stability — while msETH tracks ETH's price, secondary market liquidity depth influences how closely it trades to peg
  • Mintage caps — protocol-imposed limits can restrict minting during periods of high demand
  • Cross-chain bridge risk — LayerZero dependencies introduce an additional layer of trust assumptions

Long-Term Vision

Metronome's synthetic engine is evolving to power broader on-chain applications, with the protocol expanding to additional blockchain networks and asset types. The introduction of direct msAsset minting into external lending markets signals an ambition to deepen integration across the wider DeFi landscape, positioning msETH as a versatile building block for multichain decentralized finance.

Frequently Asked Questions

msETH (Metronome Synth ETH) is a synthetic asset that tracks the price of Ethereum. It is minted on the Metronome Synth protocol by depositing supported crypto assets as collateral.

You deposit accepted collateral — such as ETH, USDC, or yield-bearing tokens — into the Metronome Synth smart contracts. As long as your position stays above the required collateral ratio, you can mint msETH against your deposit.

Metronome Synth accepts both standard crypto assets like ETH and USDC and productive (yield-bearing) assets such as Vesper vPool tokens. Each collateral type has its own collateral factor and risk score.

Yes. msETH is deployed on Ethereum, Optimism, and Base. Thanks to the LayerZero OFT integration, it can be transferred seamlessly across all supported networks.

If your collateral falls below the required collateral ratio, your position becomes eligible for liquidation. A partial or full liquidation can occur, and a liquidation fee is split between the liquidator and the Metronome protocol.

Yes. The Metronome Synth Marketplace allows zero-slippage swaps between msAssets like msETH, msUSD, and msBTC, subject to global mintage caps. A 0.25% trading fee applies.

The protocol is governed by MetronomeDAO. Holders lock the MET token to receive esMET, which grants voting rights on governance proposals (MIPs) that influence parameters like mint caps and protocol upgrades.

stETH is a liquid staking token representing staked ETH on Lido, directly backed by staked Ether. msETH is a synthetic asset minted via overcollateralized positions in the Metronome protocol and tracks ETH's price without representing staked ETH.