Crypto Gloss

Mendi Finance

Mendi Finance is Linea’s primary lending and borrowing protocol — offering Compound V2-style overcollateralized lending markets for USDC, ETH, wBTC, and other Linea assets, with MENDI as the governance token distributed to suppliers and borrowers as liquidity mining rewards, and integration with Lynex LP tokens as collateral to enable leveraged LP strategies on Linea.

Overview

Mendi Finance launched on Linea L2 as the essential money market layer for the Linea DeFi ecosystem — providing the borrowing infrastructure that transforms Linea from a simple DEX chain into a full DeFi stack. While Linea’s bridge from Ethereum enables asset transfers, and Lynex provides DEX liquidity, Mendi enables the capital efficiency layer: borrowing against collateral for leverage, earning lending APY on idle assets, and enabling cross-protocol composability. Mendi’s Compound V2 fork architecture is battle-tested and straightforward, making it accessible to DeFi users familiar with Compound or similar protocols on other chains.

Core Architecture: Compound V2 Model

Mendi Finance is architecturally based on Compound V2:

Markets

Each supported asset has its own market:

  • USDC market — supply USDC to earn interest; borrow USDC against collateral
  • ETH/WETH market — supply ETH to earn interest; borrow ETH against collateral
  • wBTC market — supply wBTC to earn interest; borrow wBTC against collateral
  • MENDI market — supply MENDI to earn interest

Supply (Lending)

  • Deposit supported assets → receive mTokens (Mendi’s version of Compound’s cTokens)
  • mTokens are interest-bearing: their exchange rate vs underlying increases over time
  • mTokens are ERC-20 transferable → usable as collateral in other protocols, tradeable

Borrow

  • Post collateral in Mendi → unlock borrowing power based on Collateral Factor (typically 65-80%)
  • Borrow up to Collateral Factor × collateral value in any supported asset
  • Interest accrues continuously; health factor monitored
  • Liquidation if health factor falls below 1.0 (collateral value × CF / borrow value < 1)

Interest Rate Model

  • Utilization-based rate curves: low utilization → low borrow rate; high utilization → high borrow rate
  • Kink model (two-slope) similar to Aave/Compound: rate increases slowly until optimal utilization (80%), then spikes sharply above
  • Rates per market independent: ETH borrow rate ≠ USDC borrow rate

MENDI Token

MENDI is Mendi’s governance token:

Liquidity Mining:

  • MENDI distributed to suppliers AND borrowers proportional to their share of each market’s activity
  • Incentivizes both sides of the lending market (supply AND borrow)

Governance:

  • MENDI holders vote on: new asset listings, collateral factor adjustments, interest rate curve parameters, MENDI emission rate changes

veModel (future/ongoing development):

  • Mendi has discussed or implemented vote-escrowed MENDI for enhanced governance weight
  • Locked MENDI may receive fee revenue share

Lynex LP Token Collateral

A key Mendi differentiation on Linea:

  • Lynex LP tokens (representing shares of Lynex liquidity pools) accepted as collateral in Mendi
  • Enables leveraged LP strategy loop on Linea:
  1. Deposit ETH + USDC → Lynex pool → receive Lynex LP token
  2. Deposit Lynex LP token into Mendi as collateral
  3. Borrow USDC from Mendi
  4. Add borrowed USDC to Lynex (purchase more ETH + USDC → add more LP)
  5. Repeat: increasing LP position and LYNX emission exposure with borrowed capital
  • Risk: LP position impermanent loss + borrow rate must not exceed LP fees + LYNX rewards

Linea Ecosystem Role

Mendi is paired with Lynex as the two pillars of Linea DeFi:

  • Suppliers earn yield on idle USDC/ETH (better than bridging back to Ethereum for Aave)
  • Traders borrow USDC/ETH to increase position sizes on Lynex
  • LP leveragers use Lynex LP tokens as collateral for LP leverage in Mendi
  • Yield seekers earn MENDI rewards on top of supply interest (dual yield)

Sources

  1. Mendi Finance Documentation — Mendi Finance Team, 2023–2024. Official protocol documentation covering Mendi’s Compound V2-based architecture (market structure, mToken design, interest rate model parameters for each supported asset), collateral factor settings (USDC 85%, ETH 80%, wBTC 70% typical ranges), MENDI governance token mechanics (emission distribution between suppliers and borrowers, governance voting process, emission rate adjustments via governance), and the Lynex LP token collateral integration (supported Lynex LP pairs accepted as collateral, risk parameters for LP token collateral vs standard asset collateral).
  1. “Linea Money Market: Mendi Finance and the Linea Borrowing Ecosystem” — Linea Foundation / DeFi Analytics, 2024. Analysis of Mendi Finance’s role in Linea’s DeFi ecosystem — TVL composition (supply vs borrow by asset), utilization rates per market, MENDI token incentive effectiveness on borrower/supplier behavior, comparison vs Aave (available on some chains, not Linea at time of analysis), and the cross-protocol composability with Lynex.
  1. “Compound V2 Fork Security: Mendi’s Audit and Risk Management” — Security Research / Mendi Finance Audits, 2023. Security analysis of Mendi’s Compound V2 fork — examining which components are unchanged from audited Compound V2 code, modifications made for Linea compatibility (gas optimization, token standard support), oracle integration (Chainlink for price feeds, TWAP for less liquid assets), and the specific risks introduced by Lynex LP token collateral (LP token price manipulation, impermanent loss oracle accuracy).
  1. “Leveraged LP on Linea: Lynex × Mendi Composability” — DeFi Strategy Research / Linea Analytics, 2024. Analysis of the leveraged LP loop strategy enabled by Lynex LP token collateral in Mendi — modeling the strategy’s expected yield at various leverage ratios (1x, 2x, 3x), risk profile (breakeven LYNX price below which strategy turns negative, health factor sensitivity to ETH price drops), and actual adoption data (how many users execute this strategy and at what leverage).
  1. “Linea DeFi Stack: Mendi + Lynex as Linea’s Financial Primitives” — Linea Research / Consensys Ecosystem Analysis, 2024. Comprehensive overview of how Mendi Finance and Lynex together form Linea’s core DeFi financial infrastructure — comparing the Linea primitive stack to equivalent pairings on other L2s (Optimism: Velodrome + Extra Finance; Base: Aerodrome + Moonwell; Arbitrum: Camelot + Radiant), and examining whether Linea’s smaller DeFi surface relative to Optimism/Arbitrum disadvantages these protocols vs their larger-chain equivalents.

Related Terms