Lending
List an NFT as collateral and borrow against it in a single transaction — approvals are handled for you. Or fund someone else’s loan and earn interest on every repayment.
Your NFTs,
finally productive.
Requires the Polkadot.js browser extension.
Genesis Lease #1042
ERC-721 · 0x8f…3a21
Supplied value
Live12.40DOT
- Borrowed
- 8.10 DOT
- LTV
- 65%
- Term
- 30 days
Borrow against itLease for 3 days
- Polkadot
- Substrate
- ink! contracts
- ERC-721
- ERC-20
- WebSocket RPC
The toolkit
Three primitives, one on-chain dashboard
Everything Nova does is executed by smart contracts you can inspect — no backend, no order book, no hidden spreads.
Leasing
Rent out a collectible for a daily fee, or lease one for as long as you need it — short-term access without ever giving up ownership.
NFT minting
Mint ERC-721 tokens straight through the ink! contract interface. No marketplace account, no gas guesswork.
Wallet connect
One click through the Polkadot.js extension. Switch between authorised accounts without reconnecting, and never hand over a private key.
Portfolio analytics
Supplied, borrowed and earned positions are computed from real contract state — not cached numbers.
Live on-chain data
Balances, loans and leases stream in over WebSocket and refresh every couple of seconds, so the numbers you act on are the numbers on chain.
WebSocket subscription2s refreshDry-run gas estimate
How it works
From zero to an on-chain position in three steps
No seed phrases, no approvals maze, no off-platform waiting.
Connect
Authorise Nova in the Polkadot.js extension. Your accounts, free balance and ERC-20 balance show up immediately.
Pick your asset
Mint a fresh ERC-721 through the ink! interface, or bring an NFT you already own and approve it as collateral.
Lend, lease or mint
Borrow against it, fund someone else’s loan, or list a daily rental. Every action is a signed contract call.
3
on-chain primitives
Lend · Lease · Mint
0
custodians
Keys never leave your wallet
4
ink! contracts
ERC-20 · ERC-721 · Managers
~2s
chain refresh
Live WebSocket subscriptions
Under the hood
Four ink! contracts you can read end to end
Nova holds no keys and no balances. Each primitive maps one-to-one onto a contract whose ABI ships with the app.
ERC20
5DyH2T…afiT
Test token used for loan funding and rent payments
ERC721
5HE4YU…L4JL
NFT standard — minting, ownership and approvals
LendingManager
5Euxs8…VPra
Loan listings, funding, interest accrual and withdrawal
LeasingManager
5DJpc2…nzye
Lease listings, rentals and daily rent payments
FAQ
The short answers
Everything else lives in the dashboard, where the contract state is right in front of you.
Is Nova custodial?
No. Your keys never leave the Polkadot.js extension — Nova asks the extension to sign each transaction and nothing else. Collateral, loans and leases live in the contracts, so there is no Nova account to lose access to.
What do I need to get started?
The Polkadot.js browser extension and an account with enough balance for gas. Nova connects to a Substrate node over WebSocket; there is no backend, no API key and no account to create.
What can I borrow against?
Any ERC-721 minted through the app’s contract interface. LendingManager escrows the collateral, tracks the outstanding position and accrues interest as the loan is repaid.
What happens when the node is unreachable?
The wallet connection still works and your balances stay readable from the extension. On-chain features stay disabled until the node responds, and the dashboard tells you the node is down instead of failing silently.
Put your NFTs to work today
Connect a wallet, pick an asset and open your first position — the contracts do the rest.
Non-custodial · No sign-up · Nothing to install beyond the extension