FAQ
#Is Keel custodial?
No. Keel never holds your keys or funds. The server prepares a transaction, you review it, and you sign it in your own wallet. Your loan is owned by your guardian contract, which only you can withdraw from. See Security model.
#Why is the minimum loan 1,800 MUSD?
That's Mezo's rule, not Keel's. MUSD requires at least 1,800 MUSD of net debt per loan, plus a refundable 200 MUSD gas reserve. Small loans would cost more to liquidate than they're worth. Keel builds the minimum into every quote. See How borrowing works.
#What does it cost?
- Mezo charges a one-time 0.1% borrowing fee and a fixed interest rate (1% APR on testnet at the time of writing).
- Keel charges nothing to borrow, send, split or claim.
- When the guardian protects your loan, the keeper gets a tip you set yourself: 0.2% by default, never more than 1% of the amount applied. In v2, a share of that tip goes to Keel's treasury; you never pay more than the tip.
- Gas is paid in BTC and is tiny on Mezo. Keel pays the gas for claiming a claim link.
#What happens if my reserve runs out?
- With Guardian v2, the keeper applies as much as the reserve allows (a partial rescue) and Keel tells you exactly how much BTC to add to finish the job.
- If your loan is already under 110% in Normal Mode, Mezo rejects any top-up that doesn't lift it back over 110%. The guardian then does nothing, charges nothing, and reports the BTC needed. Keel sends you an alert with a one-tap button to add it.
- Before any of this happens, Keel warns you when your reserve couldn't fully cover a rescue.
#Can the keeper steal my funds?
No. protect() can only move your reserve into your own loan, only below your trigger, with a cooldown and a capped tip. Withdrawals are owner-only.
#What if Keel's keeper goes down?
protect() is permissionless, so anyone can run a keeper. Today Keel runs the only one. An open keeper network is on the roadmap.
#Which networks?
Mezo testnet (chain id 31611) today. Mainnet comes after a third-party audit.
#Do I need Telegram?
No. The web app works in any browser with MetaMask or WalletConnect. Telegram adds chat commands and alerts. See Web mode.
#Can I send MUSD to someone without a wallet?
Yes, with a claim link. The MUSD is escrowed, they open the link, create or connect a wallet and claim it gaslessly. Unclaimed links refund after 72 hours. See Payments.
#Is it audited?
Not yet. There are 41 contract tests against the real MUSD stack, and every contract has verified source on the explorer. An audit is required before mainnet.
#What's next?
Real testers on testnet, Keel Pro features, an open keeper network, the audit, then mainnet. See Roadmap.