DeFi protocol comparison
Compare Ducat's Bitcoin L1 stablecoin loans with Stackit.ai's Aave-based BTC/ETH treasury policy and automation layer.
Last reviewed July 11, 2026 · Official sources linked below
Short answer
Ducat is building a Bitcoin L1-native protocol for borrowing UNIT or USDC against BTC with a one-time fee and no ongoing interest. It is currently labeled mainnet closed alpha/coming soon. Stackit.ai is an Aave-based BTC/ETH treasury-policy layer with a live sandbox and rate data but assisted production access. Both remain availability-sensitive.
Liquidation protection
Stackit.ai is not a fixed one-size-fits-all loan. Compared with using Ducat Protocol, you define the treasury policy: the point where protection begins, the conditions for repaying debt, and the conditions for taking profit or routing part of it to the loan. Stackit.ai monitors the approved rules and prepares or executes the permitted actions.
Ducat Protocol on its own
Stackit.ai automation
Set a Protection Point before the underlying liquidation boundary and choose the safer LTV area you want the position returned to when risk rises.
Define the market, LTV, deposit-consistency, or scheduled conditions that permit a repayment—and the maximum amount the policy may use.
Define the recovery or price conditions for taking profit instead of leaving every gain exposed through the next market move.
Choose whether an approved share of realized profit pays down principal. Less outstanding debt can reduce both interest exposure and liquidation risk.
Delegated automation is permission-scoped and revocable. Without active execution permission, Stackit.ai can prepare the transaction and risk context for your signature.
Automation is designed to reduce risk, not guarantee that liquidation or loss is impossible. Sudden market gaps, oracle problems, network congestion, insufficient liquidity, smart-contract failure, missing permissions, or failed execution can prevent an action from completing in time. Current live onboarding is assisted, and not every described automation is self-serve today.
This compares product structure, not just the lowest advertised APR. Rates, LTVs, eligibility, fees, and market parameters can change.
| Dimension | Stackit.ai | Ducat Protocol |
|---|---|---|
| What it is | A treasury policy and orchestration layer that uses third-party lending markets. You choose when to protect the position, repay debt, and take profits; Stackit.ai monitors the approved policy and prepares or executes the permitted actions. The public product currently includes a self-serve sandbox and live market-rate reads; production access is assisted and the Base production API is marked in development. | An experimental Bitcoin L1-native overcollateralized stablecoin and credit protocol, currently closed alpha/coming soon. |
| Borrow rate | The underlying Aave variable borrow rate is passed through and shown separately from Stackit.ai action fees. Live native-USDC rates are available for Base, Arbitrum, and Polygon. | Ducat advertises 0% ongoing APR plus a one-time 1% origination fee for the described product.[source ↗] |
| LTV and downside response | You choose the Protection Point, safer LTV target, repayment conditions, and when profit-taking rules may pay down debt. Stackit.ai monitors LTV and prepares or executes approved actions as risk rises or profit conditions are met. Exact execution depends on the policy, permissions, liquidity, oracle data, gas, and production availability; liquidation risk cannot be eliminated. | Up to 62.5% of BTC value; liquidation eligibility begins below a 135% collateral ratio under current published mechanics. Users add BTC or repay to maintain collateralization; protocol liquidation, oracle/guardian, software, stablecoin, and availability risks remain.[source ↗] |
| Custody and control | Documented wallet-sovereign flows return unsigned transactions. Delegated automation requires revocable, policy-scoped permission; Stackit.ai says it does not hold private keys. | BTC is locked in a 2-of-2 Taproot vault requiring the user and guardian threshold network under Ducat's design. |
| Term | No separate fixed loan term in the public sandbox; the underlying onchain market determines the debt mechanics. | No fixed term is advertised; repay to redeem BTC, subject to the protocol being available and functioning. |
| Other costs | Aave interest plus published Stackit.ai per-action fees and network/protocol costs. Current fees are itemized in fees.json; protection and repayment actions carry no Stackit.ai fee, though gas and protocol costs can still apply. | One-time origination fee, Bitcoin transaction fees, UNIT/USDC conversion mechanics, and liquidation/stablecoin risks. |
About the alternative
Ducat's current site describes 2-of-2 Taproot vaults, up to 62.5% borrowing against BTC, a 1% origination fee, and liquidation below a 135% collateral ratio. The protocol also discloses experimental software risk and says it is not available to U.S. persons.
The key distinction
Ducat is Bitcoin-only, Bitcoin-L1-native stablecoin issuance. Stackit.ai spans BTC and ETH treasury workflows and relies on EVM lending markets, currently Aave, with policies and agent interfaces above those markets.
Future eligible non-U.S. Bitcoin users who specifically want native Bitcoin L1 collateral without wrapping or bridging and accept closed-alpha protocol risk.
BTC/ETH treasury teams and agents that want EVM market rates, recurring policies, and integration tooling.
No. Ducat's current official site labels the product 'Mainnet Closed Alpha' and 'Coming soon.'
Ducat's current risk FAQ says it is not available to U.S. persons.
Ducat describes a stablecoin-minting protocol with a one-time 1% origination fee rather than ongoing interest. Users still face transaction, stablecoin, liquidation, oracle, and software risks.
The user chooses the Protection Point, safer target LTV, repayment conditions, profit-taking conditions, permitted amounts, and approved funding sources. Stackit.ai monitors those rules and can prepare or execute permitted actions according to the active permission model. Automation reduces risk but cannot guarantee against liquidation, loss, or failed execution.
Competitor facts come from official product or protocol documentation. Stackit.ai facts come from its public docs, endpoints, and current availability switch. Marketing rates are not treated as guaranteed offers. Review your personalized terms before borrowing.
Educational comparison only; not financial, legal, tax, or investment advice. Crypto-backed loans can lose collateral through liquidation, smart-contract failure, oracle error, market gaps, custody failure, or other execution risks.
Start with live protocol rates, add every fee, then test how your LTV behaves before you choose a borrowing path.
