VaultieHow Vaultie works
Vaultie is an overcollateralized lending service for bonded Pump.fun tokens on Solana. You pledge tokens, draw SOL against them, and reclaim them by repaying with interest — without ever selling. The sections below cover the full mechanics and, just as importantly, where the trust sits.
Overview
Lock your tokens at a dedicated address and a SOL credit is sent straight back to the wallet you sent from. You pick a borrow term (2 hours, 1 day, 1 week or 1 month); repay credit plus interest within that term to unlock your tokens. Miss the term and the collateral is forfeited to the protocol. If the price falls far enough before then, the position is liquidated and you walk away owing nothing. There is no app to install and no connection to approve — the deposit itself is the action.
Loan lifecycle
A position moves through a handful of stages:
- Look up. Paste a bonded token address; Vaultie reads its live price and pool depth and shows what you can draw.
- Quote. Enter an amount and see the credit, interest, repay total and liquidation price up front — fixed at issue.
- Deposit. A one-time lock address is generated. Send your tokens to it from your own wallet (not an exchange).
- Disbursement. Once the deposit lands, the spot price is read again and the matching SOL is paid back to the sending wallet. Your term clock starts here.
- Settlement. Repay credit + interest within your term to release your tokens. If the term lapses unpaid — or the price halves first — the collateral is liquidated.
Pricing & oracle
Collateral is valued from aggregated Solana DEX liquidity (Dexscreener / Jupiter). Because price is read across pooled venues, moving it enough to game a quote would mean moving the whole market — which the Smart Cap already makes uneconomical. Prices feed three things: the borrow quote, the live health of open positions, and the liquidation trigger.
Loan-to-value (LTV)
Base 10%: you receive 10% of the locked token value as a SOL credit. Your LTV rises two ways — by holding $VAULTIE and by building a repayment record — up to a hard ceiling of 25%.
| $VAULTIE held in your wallet | LTV |
|---|---|
| — | 10% |
| ≥ 10,000,000 | 15% |
| ≥ 50,000,000 | 20% |
| ≥ 100,000,000 | 25% |
The tier is read from the balance of the wallet you borrow from, on-chain, at the moment of disbursement — simply hold $VAULTIE there. Example: $400 locked → $40 credit at 10%, or $100 at 25%.
Borrower reputation
Every loan you repay raises your borrowing power: +0.2% LTV per 1 SOL of credit repaid, up to +5%. It stacks on top of your $VAULTIE tier, still capped at the 25% ceiling. Repay reliably and you draw more against the same collateral over time.
Interest & terms
You choose how long to borrow when you open a position. Interest is fixed for that term — shorter terms are cheaper, longer terms cost more (they tie up the pool's capital for longer):
| Term | Interest |
|---|---|
| 2 hours | 2% |
| 1 day | 4% |
| 1 week | 7% |
| 1 month | 12% |
Repayment is credit × (1 + interest) — flat, no compounding. Interest is the protocol's revenue; today it accrues to the treasury that funds all lending (once SOL supply ships, a share routes to the providers who funded the loan). If the term lapses before you repay, the position defaults and your collateral is forfeited to the protocol. All rates are starting values and are configurable.
Smart Cap
Across everyone, no more than 10% of a token's pool liquidity can be locked. At 10% LTV that caps total credit per token near ~1% of pool depth (up to ~2.5% at the 25% tier). The effect: manipulation isn't worth it, and a forced sale barely dents the price. This is the core solvency mechanism.
Liquidation
A position is liquidated automatically if either comes first: spot falls 50% below the entry price, or the borrow term lapses unpaid. The collateral is sold at market through Jupiter and the proceeds settle into the protocol treasury, which backs all lending. Your position closes — you keep the SOL you drew and owe nothing further. Nothing follows you.
Treasury & liquidity
Every loan is funded from the protocol treasury. To deepen that liquidity over time, all developer rewards flow back into the treasury — creator fees and protocol revenue aren't extracted, they're recycled into the lending pool. More liquidity means larger loans, more positions served, and a deeper solvency buffer behind every borrow. The treasury grows, the desk lends more.
Staking & supplying
Hold $VAULTIE → LTV boost. In this MVP the boost is read from your wallet balance on-chain when you borrow — simply hold $VAULTIE in the wallet you borrow from to land a higher tier (see LTV). No separate locking step is required today.
Supply SOL. (Roadmap.) Provide liquidity to the credit pool and earn from loan interest, with a dynamic APR that rises with utilization. Until this ships, all lending liquidity is funded by the protocol treasury.
Custody & trust
In this MVP, Vaultie is custodial / off-chain: a backend manages the lock addresses and the treasury, with no smart contract of its own. The frontend holds no keys; you simply send tokens and receive credit back. That means you are trusting the operator, not on-chain code. We don't dress this up — it's the single most important thing to understand before depositing.
Supported tokens
Currently bonded Pump.fun tokens only — those already migrated off the bonding curve to an AMM, where price and depth are reliable. Support for tokens still on the curve is planned once their pricing is robust enough to lend against safely.