Fees

Fees

DAY protocol fees

Fee	Rate	When
Performance fee	5% (500 bps)	on realized yield at harvest only
Swap fee	100 bps (1%)	DAY-composed swap notional
Gas sponsor fee	100 bps (1%)	gas-sponsor repayment notional
Auto Pay remittance	0	no protocol cut for paying allowlisted bills
x402 API call	$0.001	paid data / agent discovery endpoints
Deposit	0	always
Withdraw principal	0	always

performance_fee_bps            = 500  # 5% of realized yield
protocol_swap_fee_bps          = 100
protocol_gas_sponsor_fee_bps   = 100
auto_pay_transfer_fee_bps      = 0
x402_api_call_usd              = 0.001
deposit_fee_bps                = 0
withdraw_fee_bps               = 0

curl -sS https://dayprotocol.com/api/day/status | jq '.fee'

Performance fee (5% of realized yield)

DAY charges a performance fee of 5% on realized yield when yield is harvested — not on deposits, not on principal, not on unrealized mark-to-market.

curl -sS -X POST https://dayprotocol.com/api/day/harvest \
  -H 'content-type: application/json' \
  -d '{"compound":true,"payPercentage":0}'

At harvest: realized yield → 5% performance fee to protocol → residual compounds or Auto Pays (self bills).

Auto Pay (no remittance fee)

Auto Pay routes residual yield so the agent can pay its own bills (compute, storage, APIs, x402 service purchases) under an owner on-chain payee allowlist.

Rule	Detail
Source	Post-performance-fee residual yield only
Destinations	Owner-approved payees only (destination-lock)
Protocol fee on remittance	0
Third-party wallet splits	Gated — not default product

Public page: dayprotocol.com/autopay

x402 API fee ($0.001)

Optional pay-per-call for agent data / discovery. Not a yield tax. Not charged on deposit/withdraw.

Swap fee (1%)

When DAY routes a swap, DAY takes 1% of swap notional. DEX pool fees and impact are extra (third party).

Gas sponsorship (1% + recovery)

Needed when the wallet has USDC only (no native gas):

1. DAY plans native gas fronting
2. User repays from stablecoin (cost recovery)
3. DAY adds 1% fee on that repayment notional

Third-party costs (not DAY)

Cost	Who
DEX swap fee / impact	Turbos, Jupiter, …
Bridge fee	Mayan / rail
Venue fees	Suilend, NAVI, Jito, Kamino, Morpho, Aave, …
Chain gas	network
x402 endpoint price	the service being purchased

Summary

DAY takes:  5% performance fee on realized yield · 1% DAY swaps · 1% gas-sponsor · $0.001 x402 calls
DAY never:  deposit fee · withdraw principal fee · Auto Pay remittance fee
Others may: DEX · bridge · venue · raw gas · x402 service price