How Does Anvil Work?
Anvil is a DeFi lending protocol that specializes in issuing collateral-backed letters of credit on Ethereum. Users deposit assets into vaults that back credit instruments, with time-based collateral pools offering fixed-term lending. With $40M in TVL, it brings traditional finance credit concepts to DeFi. The novel combination of letters of credit with DeFi composability is largely untested, and the protocol has less than 1 year of operational history.
TVL
$9M
Sector
Lending
Risk Grade
C
Value Grade
C-
Core Mechanisms
6.1.1
Collateral vaults where users deposit assets to back letters of credit; over-collateralized to ensure credit security
Standard over-collateralization pattern adapted for credit issuance
6.2.4
NovelTime-based collateral pools offering fixed-term lending and borrowing with automatic interest accrual
Novel fixed-term collateral pool structure for DeFi letters of credit
6.3.2
Liquidation mechanisms to protect lenders when collateral value drops below threshold
Standard liquidation mechanism for collateral-backed positions
6.4.1
External oracle feeds for collateral asset pricing and vault health monitoring
Standard oracle dependency for collateral valuation
5.1.1
ANVL token governance for protocol parameter management
Standard token-weighted governance
2.1.2
NovelInterest-based fees charged on credit issuance and borrowing activities
Novel fee structure for letter of credit issuance, distinct from standard lending fees
How the Pieces Interact
Collateral valuation depends entirely on oracle accuracy; stale or manipulated prices could prevent timely liquidations, leaving lenders under-collateralized
Fixed-term structures may conflict with immediate liquidation needs; collateral locked in time-based pools may not be accessible for liquidation when needed
Maturity mismatch between collateral duration and credit terms could create liquidity gaps at pool expiry
Governance can adjust collateral parameters; incorrect parameter changes could make the system under-collateralized
Fixed interest rates may become uncompetitive during market shifts, leading to capital flight at pool maturity
What Could Go Wrong
- Novel collateral model: letters of credit issued against collateral vaults is an uncommon DeFi primitive with limited battle-testing
- Oracle dependency: collateral valuation relies on price feeds to determine vault health and liquidation thresholds
- Short track record: protocol launched in early 2025, less than 1 year of operational history
Collateral Liquidation Cascade
ModerateTrigger: Sharp decline in collateral asset values triggers mass liquidations that exceed protocol capacity
- 1.Collateral assets drop 20-30% in a short period — Multiple vaults breach collateralization thresholds simultaneously
- 2.Liquidation mechanism processes vaults but selling pressure further depresses collateral prices — Cascading liquidations as each sale drives more vaults below threshold
- 3.Fixed-term pool collateral cannot be liquidated until maturity — Some credit positions become under-collateralized with no immediate remedy
- 4.Letters of credit lose their fully-secured status — Credit holders face potential losses; protocol reputation severely damaged
Risk Profile at a Glance
Overall: C (43/100)
Lower score = safer