If you're looking to earn reasonable yield on your idle stablecoins (USDC/USDT/USDT0...), I built this ranking for you. 50 defi protocols ranked by risk, security and yield apy.

S Tier

.@aave — major lending money market and blue chip defi with deep liquidity (tvl) and conservative risk params; yield compresses hardest in downturns.

Category: Lending | Chains: Ethereum + major L2s | Stable APY: ~2–3%

Risk: low but main downside is rate compression.

.@compoundfinance v 3 — old-school lending with fewer moving parts.

Category: Lending | Chains: Ethereum + select L2s | Stable APY: 2–3%

Risk: conservative

.@Uniswap — major fee engine DEX for stable pools.

Category: DEX LP | Chains: Ethereum + L2s | Stable APY: 1–60%

Risk: fee volatility, incentive ending, pool selection.

.@CurveFinance — stablecoin plumbing for DeFi.

Category: Stable AMM | Chains: Ethereum + L2s | Stable APY: 2–7%

Risk: low

.@Morpho — marketplace for curated vault risk + lending vaults.

Category: Lending | Chains: Ethereum + Base | Stable APY: 3–7% (vault-dependent)

Risk: low

.@sparkdotfi — lending + liquidity hub.

Category: Lending | Chains: Ethereum + Base | Stable APY: 2–5%

Risk: conservative

A Tier

.@maplefinance — onchain credit with strategies often steadier than most incentive farms.

Category: Credit | Chain: Ethereum | Stable APY: 4–5%

Risk: credit cycle/borrower risk.

.@AerodromeFi — Base’s incentives machine.

Category: DEX LP | Chain: Base | Stable APY: ~7%

Risk: emissions are heavy

.@yearnfi — delegated strategy yield aggregator + vaults.

Chains: Ethereum + L2s | Stable APY: 1–5%

Risk: strategy risk

.@pendle_fi — turns yield into a tradable product.

Category: Yield derivatives | Chains: multi-chain | Stable APY: 6–9%

Risk: yield structure complexity.

.@Balancer — AMM built for stable + composable liquidity.

Category: DEX LP | Chains: Ethereum + select L2s | Stable APY: ~3%

Risk: pool complexity, boosted mechanics.

.@ConvexFinance — yield optimizer.

Category: Yield | Chains: Ethereum | Stable APY: 4–7%

Risk: dependency on Curve incentives.

.@KaminoFinance — Solana’s lend + vault hub.

Category: Lending/vaults | Chain: Solana | Stable APY: ~3%

Risk: chain concentration.

.@orca_so — Solana LP yields with incentives + volume.

Category: DEX LP | Chain: Solana | Stable APY: 1–80%

Risk: LP variance

.@AuraFinance — Convex-for-Balancer.

Category: Yield booster | Chains: Ethereum | Stable APY: ~8%

Risk: extra dependency stack.

B Tier

.@0xfluid — unified liquidity layer built by @Instadapp team; designed for capital efficiency.

Category: Lending + DEX | Chains: Ethereum, Arbitrum, Base (multi-chain) | Stable APY: 3–4%

Risk: model complexity

.@eulerfinance — permissionless markets with more variance.

Category: Lending | Chains: EVM | Stable APY: 1–7%

Risk: market factors + complexity.

.@FolksFinance — Strong in its home ecosystem; xChain adds extra plumbing.

Category: Lending | Chains: Algorand + xChain | Stable APY: 3–7%

Risk: crosschain mechanics + ecosystem concentration.

.@VenusProtocol — BNB Chain money market.

Category: Lending | Lead chain: BNB Chain | Stable APY: ~2%

Risk: chain concentration

.@GearboxProtocol — Leverage changes everything.

Category: Leveraged lending | Chains: EVM | Stable APY: 2–7%

Risk: liquidation/oracle/leverage risk.

.@SiloFinance — Isolated markets reduce contagion, but your market choice matters.

Category: Lending | Chains: EVM | Stable APY: 1–8%

Risk: market-specific

.@beefyfinance — Aggregator across chains; quality depends on the chain + strategy.

Category: Yield vaults | Chains: multi-chain | Stable APY: 3–9%

Risk: strategy + chain dependence.

.@MoonwellDeFi — Base lending option; smaller than the giants.

Category: Lending | Lead chain: Base | Stable APY: ~4%

Risk: couldn’t decipher

.@Dolomite_io — More features, more surfaces.

Category: Money market / margin | Lead chain: Arbitrum | Stable APY: 2–4%

Risk: complexity

.@merkl_xyz — Incentive router: good for boosts, not “set and forget.”

Category: Incentives | Chains: multi-chain | Stable APY: 0.4–2%

Risk: incentives can disappear overnight.

.@SushiSwap — Long-running DEX; yields depend on the pool.

Category: DEX LP | Chains: multi-chain | Stable APY: 1–9%

Risk: pool selection

.@CamelotDEX — Arbitrum-native DEX incentives.

Category: DEX LP | Lead chain: Arbitrum | Stable APY: 1–11%

Risk: emissions + liquidity migration.

.@AcrossProtocol — Bridge yield is still bridge risk.

Category: Bridge liquidity | Chains: multi-chain | Stable APY: 1–3%

Risk: bridge exposure.

.@symbiosis_fi — Crosschain routing yield.

Category: Crosschain | Chains: multi-chain | Stable APY: 4–9%

Risk: crosschain dependencies.

C Tier — High risk

.@katana — high-yield venue with limited depth.

Category: Yield/strategy | Stable APY: 30–40%

.@bluefinapp — trading venue where yield stability depends on incentives/volume.

Category: DEX/perps | Stable APY: 3–36%

.@avantisfi — trading/perps-driven yield surfaces.

Category: Perps/trading | Stable APY: ~11%

.@GMX_IO — perps liquidity/revenue share. The yield here is cycle-dependent.

Category: Perps | Chains: Arbitrum + other L2s | Stable APY: 1–5%

.@GainsNetwork_io — perps/trading yield protocol where yield depends on volume and market conditions.

Category: Perps | Stable APY: ~10%

.@yield — structured yield where return comes with counterpart risk.

Category: Structured/credit | Stable APY: ~12%

.@upshift — Category: Yield strategy | Stable APY: 9–13%

.@hyperion_xyz — Category: Yield/strategy | Stable APY: 19–24%

.@superformxyz — crosschain vault router with a dependency stack risk factor

.@ston_fi — TON DEX with high risk of ecosystem concentration

Honorary mentions

.@metromxyz

.@goldfinch_fi

.@WildcatFi

.@KiloEx_perp

.@TakaraLend

.@project0

.@autopools

.@StakeDAOHQ

.JustLend

Let me know what you think of this list.