DeFi Directory

Catalogs DeFi protocols and applications across categories: decentralized exchanges, lending platforms, derivatives, yield aggregators, and stablecoin issuers. Each entry includes chain, total value locked (TVL), audit history, and notable protocol incidents.

TVL figures reflect snapshots from public on-chain data and may lag real-time by minutes to hours. The directory is a reference index, not investment advice; protocol risk varies substantially even within a single category.

DeFi protocol categories overlap and have shifted definitions. Decentralized exchanges (DEXs) span automated market makers (Uniswap-style constant product, Curve-style stable pairs) and order book DEXs (dYdX, GMX). Lending platforms (Aave, Compound, Morpho) accept collateral and lend against it, with rates set by supply-demand curves. Derivatives include perpetual futures (GMX, dYdX), options (Lyra, Premia), and synthetic assets (Synthetix). Yield aggregators (Yearn, Beefy) automate strategies across underlying protocols. Stablecoin issuers (MakerDAO, Liquity, Frax) issue dollar-pegged tokens with various collateral models.

TVL as a metric carries known caveats. Direct deposits — assets sitting in a single protocol's smart contracts — are unambiguous. Composability inflates the count when assets are deposited across stacked protocols: depositing wstETH (1 ETH staked at Lido) into Aave (1 ETH borrowed against it) produces $X of TVL on Lido and roughly $X on Aave despite being economically the same capital. DeFiLlama and similar aggregators apply de-duplication to varying degrees; raw protocol-reported TVL often does not. The directory uses DeFiLlama-style adjusted TVL where available.

A worked example for the lending category. Aave V3, multichain, ~$25B TVL, audited by Trail of Bits / Certora / SigmaPrime, no major exploits. Compound V3, Ethereum, ~$2.5B TVL, audited, no major exploits since the V2 cToken price-feed attack of 2021. Morpho Blue, Ethereum, growing rapidly through 2024-2025, audited by Spearbit / Cantina, no exploits. Each entry would link to the protocol's documentation and DeFiLlama page for current numbers.

Audit and incident history matters disproportionately. Exploits in DeFi commonly produce total or near-total loss for affected positions. The list of significant incidents includes Wormhole (Feb 2022, $325M bridge exploit), Ronin (Mar 2022, $625M), Nomad (Aug 2022, $190M), Mango Markets (Oct 2022, $114M), FTX (Nov 2022, exchange collapse with on-chain effects), Euler (Mar 2023, $197M, partially recovered), and dozens of smaller losses. The pattern: even audited protocols fail; novel mechanisms fail more often than well-trodden ones; bridges and cross-chain infrastructure fail most often of all.

Limitations: the directory captures a snapshot. Protocol risk shifts continuously — admin keys are added or removed, contracts are upgraded, governance attacks become possible as token distributions concentrate. A protocol marked "non-custodial, immutable" today may be neither in six months. The directory is useful for orientation; the production due diligence requires reading current documentation, governance proposals, and audit reports for each specific protocol.