Live on Robinhood Chain

Pay anyone.
Straight from your stocks.

Send exact dollars to anyone, or the stock they would rather have. Lark sells just enough of what you hold, at Uniswap's live price, and hands it over in one transaction. No selling first, no waiting, no cash sitting idle.

  • No contract of ours
  • Exact to the cent
  • Checked against Robinhood's prices

Try a payment

Priced live against Uniswap and Robinhood's own feed
Live
$
Lark sells
At most, with 0.5% room
They receive
Against Robinhood's price
Pay with this →

A real quote from Uniswap's QuoterV2 on Robinhood Chain, refreshed every 20 seconds. Nothing is sent until you sign.

How it works

Who, how much. Sign once.

Your savings are in stocks and the rent is in dollars. Lark closes that gap inside one transaction, so nothing is sold until the moment it is paid.

01

Who and how much

Paste an address and an amount, or open a request link someone sent you. Pay up to eight people at once.

02

Dollars or a stock

They get exact dollars (USDG), or the stock they asked for, bought with exactly those dollars and delivered to their wallet.

03

From what you hold

Your cash first, then a slice of every stock you pick, in proportion to what each is worth, so the mix of your portfolio stays the same.

04

Sign and done

One permit signature per token, then one transaction to Uniswap's own router. If any price moves past its limit, nothing moves at all.

Requests

Ask for money with a link

Make a link that says who to pay, how much, and in what: dollars, or a stock you would rather be paid in. Send it any way you like. Whoever opens it can pay it from whatever they hold, and you receive exactly what you asked for.

A link is just the address, the amount and a note. Nothing is stored anywhere, and there is nothing to sign up for.

Make a request link →
0x7f3a…c21easks you for
$42.50
“Dinner on Friday — thanks!”
They receive$42.50 in NVDA
You pay fromUSDG, then AAPL · SPY
Transactions1
Safety

Nothing to trust but Uniswap

Lark is a page, not a bank. Your stocks never leave your wallet except inside the payment you sign.

No contract of ours

There is nothing to deposit into and nothing we could pause or drain. The only contract you call is Uniswap's SwapRouter02, already live on Robinhood Chain.

All or nothing

Every sale, every purchase and every hand-over sits in one multicall. If any sale would cost more than its limit, or the fifteen-minute deadline passes, nothing moves.

Held to Robinhood's price

Before you sign, every sale and purchase is priced against Robinhood's own feed for that stock. One that is more than 3% worse is refused, by name.

Permits, not approvals

You sign a permit for exactly what this payment may spend, valid for fifteen minutes. No standing, unlimited approval is ever asked for.

Tested on the live chain

The code that builds your payment runs against Robinhood Chain's real pools, and deliberately broken copies of it must all be caught. The results.

A receipt anyone can check

Every payment has a receipt page that reads the transaction back from the chain: who got what, and what was sold to pay for it.

Questions

Good to know

Why not just sell, then send?

You can, in two or three transactions, and between them the price moves and dollars sit idle in your wallet. Lark does both inside one transaction at a known price, and sells exactly what the payment needs, down to the cent, instead of a round number of shares.

What does it cost?

Lark charges nothing. You pay each Uniswap pool's own fee (0.05% to 1% depending on the stock) and the price impact of your size, both shown before you sign, plus gas in ETH, which on Robinhood Chain is a fraction of a cent.

What does "keep my mix" mean?

If you hold $600 of NVDA and $400 of AAPL and pay someone $100 from them, Lark sells $60 of NVDA and $40 of AAPL. What is left is still 60/40. Pick fewer stocks to pay from only those.

Can they be paid in a stock?

Yes. Choose a stock instead of dollars and Lark buys it with exactly the amount you are paying, in the same transaction, and delivers it straight to their wallet. The purchase carries a minimum; if the pool would return less, nothing moves.

What do I need?

A wallet on Robinhood Chain (MetaMask, Rabby, Coinbase Wallet…), the stocks or USDG you want to pay from, and a little ETH for gas. Lark adds the network to your wallet if it isn't there.

Why several signatures?

Each token you pay from needs one EIP-2612 permit, which lets Uniswap's router take exactly that amount in this one payment. A signature costs nothing and sends nothing. Then one transaction does all of it.

Is it audited?

Lark deploys no contract, so there is nothing of ours to audit: your payment calls Uniswap's router, which is audited and has run on many chains. The page that builds the transaction is open, and tested against the live chain.