Weir

Your agent's bills
outlive its budget.

A $12/month API subscription funded with $500 dies in forty months, and so does whatever the agent was maintaining. Recurring costs do not stop. Budgets do.

Weir endows the bill instead of funding the agent. Principal goes into Aave once and stays. Only what the index adds ever leaves, so a compromised agent still cannot take more than the accrual.

Aave v3 liquidity index

—

Observed APY

sampling…

This number is the multiplier. Every figure below is derived from it, live, on Base Sepolia. Nothing here is seeded.

No endowments yet.

Endow an agent

Principal is supplied to Aave and never leaves. Your agent receives only what the index adds. You can close and take all of it back at any time.

asset

principal (USDC)

agent address (spending wallet)

payout floor (USDC) · stops dust harvests

min interval (seconds)

How the number is derived

An aToken balance is a raw balance times a global index:

    balance = scaledBalance x index / RAY

For principal P committed at index i0, the releasable amount at i1 is

    accrued = P x (i1 - i0) / i0          equivalently  d = S x (1 - i0/i1)

After withdrawing exactly that, the remaining balance is P again. Principal is
preserved by construction, not by a check. A rounding reserve of i1/RAY + 1 is
withheld per harvest because Aave burns scaled units with round-half-up; it is
tracked and paid out on close, never stranded.