Summer.fi

Deposit into Summer.fi’s Lazy vaults across five networks and redeem shares directly.

The Summer.fi integration deposits into Summer.fi’s Lazy vaults, standard ERC-4626 vaults. You receive that vault’s share token, whose redemption value in the deposit asset rises as the vault’s strategy performs.

Availability

Network	Deposit assets (vary per vault)
Ethereum	USDT, WETH, USDC
Base	WETH, EURC, USDC
Arbitrum	USDC, USDT
Sonic	USDC
HyperEVM	USDC, USDT

List the vaults enabled for your project with GET /v1/yields filtered by providers=summer-fi.

Entering

An enter action approves the deposit asset and deposits it into the vault, minting its share token to your address. A WETH vault also accepts native ETH, wrapped automatically as part of the enter flow.

Exiting

Exits redeem shares for the deposit asset in the same transaction: there is no cooldown or withdrawal queue. A WETH vault unwraps the redeemed WETH back to native ETH as a final step.

Some vaults enforce a deposit cap. Check the yield’s capacity before building a large enter action; a deposit that exceeds the remaining capacity reverts on-chain.

Rewards and position

Yield compounds automatically into the vault’s share price. Several vaults also carry an extra reward token in their metadata alongside the share token; this integration has no manual claim action for it.

List the live yields

Copy this request to list the Summer.fi yields enabled for your project. Yield IDs change as markets and networks are added, so query the API rather than hardcoding them.

curl "https://api.yield.xyz/v1/yields?providers=summer-fi&limit=100" \
  -H "x-api-key: $YIELD_API_KEY"

Next steps

Vaults

Compare Summer.fi with the other vault integrations.

Action lifecycle

Request, sign, and submit enter and exit actions.