LendMaster Building the best dollar-stablecoin funding autolender · monitored from your phone
Put your idle dollars and USDT to work earning interest
Lend your idle capital to traders who need leverage, and earn interest through the funding market. Hand the mechanical, fiddly part to us and take your own time and attention back.
Start free, right now The free plan watches up to two exchange accounts and needs only a read-only key that you authorise.
You are not investing. You are on call.
A dark room, a bright screen, in and out all night. What it costs you is sleep and attention; what it returns rarely matches.
A kind of interest only financial institutions used to collect
When someone buys stock on margin, the interest they pay ends up with the broker and the bank behind it. Lending money and collecting that interest is a licensed business in traditional finance: it takes a licence, and it takes being an institution. An ordinary person with idle cash simply has no way in.
Crypto markets changed that.
On an exchange like Bitfinex, leveraged traders borrow from other users, and the lender can be anyone. You post dollars or USDT (a stablecoin pegged 1:1 to the dollar) on the funding market with an amount, a rate and a term. Someone takes it, and it is filled. At maturity you get your principal back plus interest.
The return comes from interest, not from the price of any coin. You lend dollars and you get dollars back.
That funding market is on Bitfinex
Bitfinex has been running since 2012, among the earliest crypto exchanges still in operation.
In 2016 it suffered a major breach that shook the whole industry — close to 120,000 bitcoin were stolen. The company did not shut down and did not deflect responsibility. It absorbed the loss and, in under a year, made every user whole.
An institution that stands by its users at the worst possible moment has earned a measure of trust on that alone.
LendMaster is not affiliated with Bitfinex. We are an independent third-party management tool. Your funds stay in your own Bitfinex account throughout, and the API key you give us never has withdrawal permission enabled.
Why Bitfinex: its funding market is an order book — you set your own rate — and it is the largest of its kind, which is what makes an offer worth posting.
Other industry giants such as Binance and OKX run retail lending as a pool: the platform announces the rate and you take it or leave it. That is why we do not support them — inside a pool, no strategy can change the platform's rate.
The risks of this investment
- 1. Exchange custody risk. This is the principal risk. Your funds sit in a Bitfinex account — not with LendMaster, and not under any deposit insurance. Exchanges in this industry have been hacked, have halted withdrawals, and have ceased operating.
- 2. Liquidity risk. Lent funds cannot be recalled before maturity, and terms run up to 120 days. For this the system provides a withdrawal plan: you name a date and an amount, and the bot will not lend past that date.
- 3. Stablecoin risk. USDT is not a dollar. It is a stablecoin whose issuer undertakes to redeem it one-for-one. That undertaking has held so far, but it is the promise of a single company, not deposit insurance.
- 4. Rate risk. Funding rates move with demand for leverage and are not guaranteed. 10% one month and 4% the next are both within the normal range.
Borrower default is not the principal risk here. Each loan is secured by the borrower's margin, and the exchange liquidates them before that collateral runs out. Historically, actual losses to lenders have come from the first item.
The exchange has a free one built in. So what do we do?
Bitfinex has a free auto-lend built in: it renews at the FRR, the equilibrium rate that thousands of lenders and borrowers pull into place between them, and with a long enough term it leaves almost nothing idle. It is genuinely decent. You are welcome to use only that — plenty of people do. What we do is the other half of the same job: being willing to wait. Same period, same capital, backtested:
The gap is not because we post more often. In the backtest the built-in one (with a long term) runs at 99.7% utilisation and we run at 98.3% — it is busier than we are. Every point of the difference comes from pricing patience: Bitfinex has no reason to push lenders’ rates up; it only optimises how fast supply meets demand. The FRR is a price nobody negotiates on your behalf — we do.
On this platform you can pick Set and forget and hand your capital to our in-house Dynamic Premium Engine. It monitors live market data continuously, decides for each slice of capital which rate to post at and how long to stay there, and adjusts the moment conditions heat up or cool down. Across five years and 58 market windows of backtesting, it beat Bitfinex’s free auto-lending in 43 of them, by 1.42 points on average. Our own money runs on it, and we keep tuning it.
So if all you want is the market’s equilibrium rate, you do not need to pay us. Stay on Bitfinex — that feature is free, and its utilisation is higher than ours. What we sell is the extra point, and it is bought with patience.
Market clearing rates sat between 6.22% and 11.03% for most of the last 355 days.
Measured in a market whose median was 5.50% — the low end of the ten-year range, not a cherry-picked year. When the market itself pays more, the gap narrows. Past results do not predict future performance.
Note: in the examples on this site, the Bitfinex auto-lend FRR used for comparison is the most idealised lending rate within a specific USD funding pool. To actually receive it, a lender usually has to accept a longer wait for orders to fill and longer lock-up terms.
We cannot reach your money
We are not an exchange and we never hold your money — we only decide how much to offer, at what rate and for how long on the Bitfinex funding book, and then watch it.
Trust comes from limits, not promises. Every line below is enforced in code.
- We never hold your funds. They stay in your own exchange account.
- We reject keys with the wrong permissions. Too much (withdrawal rights) is refused outright; too little (a read-only key on a paid plan) is flagged immediately. Both directions are caught.
- We cannot see your key. It is encrypted in your browser before it is sent.
- We do not rely on SMS or six-digit codes. Fingerprint and face sign-in (passkeys) are bound to the domain: a phishing site cannot get one, and could not use it.
- We give no investment advice and guarantee no return.
- Analytics record the country, never the IP address.
What you need to start
Looking costs nothing. The free plan connects two exchange accounts with read-only keys — you can see your positions, rates and income without handing over any permission that can move money.
To actually lend, you need three things:
- A Bitfinex account (opened with them; we are not involved)
- Dollars or USDT in it, available to lend
- An API key with offer permission
The exchange's minimum for a single offer is 150 US dollars. Below that it will not post — that is a Bitfinex rule, not ours.
This is what it looks like
Real screens from the product. The data shown is a demo account.
Get the hours back
Go for the run, take the hike, have dinner with your family. The bot checks every ten minutes and never falls asleep.
Every account, on one phone
Connect every exchange account and oversee them all in one place; you only pay when you actually want the bot to place offers and earn interest for you. Anyone whose money sits in several accounts knows: the hassle is not managing it, it is logging in to each one just to look.
Pricing
Watching is free. Your plan only starts counting when you actually want the bot to place offers and earn interest for you.
Start free
The free plan connects two exchange accounts for monitoring. No payment, and no key that can move money. Upgrade when you are convinced.
Start free, right now