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Centurion

Every transaction you make buys you NVDA

Invest without noticing. Every payment silently rounds up into stocks — while you trade, swap, send, mint and bridge the way you already do.

See it on your wallet

Coming soon

  • Robinhood Chain
  • Ethereum
  • Base
  • Arbitrum
  • HyperEVM
  • Polygon
  • BNB Chain
  • Avalanche
  • Monad
  • Arc

Trade anywhere. Invest automatically. Earn every day.

  1. Trade anywhere.

    Any terminal, any bot, any DEX. Whatever you were going to do anyway.

    Nothing to connect. The wallet is the integration.

  2. Invest automatically.

    Every payment rounds up to the next dollar. The spare change buys the Robinhood Stock Tokens you picked.

    Gas on us. Tokens land in your wallet, not ours.

  3. Earn every day.

    Active accounts split a daily pool of CENT rewards.

    Streaks, rewards, and a portfolio that grew while you weren't looking.

Ten chains. One pot. Your stocks.

Every payment we can price leaving your wallets on any of these chains rounds up into the same pot on Robinhood Chain, and that pot buys the stocks you picked. Nothing to bridge, nothing to move, nothing to connect.

NVDAAAPLMETARobinhood Chain
  • Robinhood Chain
  • Ethereum
  • Base
  • Arbitrum
  • HyperEVM
  • Polygon
  • BNB Chain
  • Avalanche
  • Monad
  • Arc

Works wherever you already spend.

There is no list of supported apps because there is no integration to be on. If it leaves your wallet and it can be priced, it rounds up.

  • Trade on GMGNBase$9.15+$0.85
  • Trade on TerminalEthereum$33.70+$0.30
  • Trade on AxiomRobinhood Chain$61.45+$0.55
  • Swap on UniswapEthereum$1,337.12+$0.88
  • Send USDC to a friendPolygon$24.10+$0.90
  • Swap on PancakeSwapBNB Chain$42.35+$0.65
  • Deposit to HyperliquidArbitrum$212.40+$0.60
  • Buy a memecoin with BNBBNB Chain$150.50+$0.50
  • Top up your account on PolymarketPolygon$18.25+$0.75
  • Open a position on GMXArbitrum$75.30+$0.70

Your spending already had the money.

Paste any wallet. Every payment we can price, rounded up.

—

What this wallet would have set aside.

Round-up
Boost

Built so you never think about it.

Four things the mechanism does for you, and the limits it keeps while doing them.

Signed anywhereRead hereYour wallet10 chainsHyperliquid depositArbitrum$212.40+$0.60USDC to a friendPolygon$24.10+$0.90Uniswap swapEthereum$1,337.12+$0.88Gas feeNot counted

No app to connect

The wallet is the integration.

A round-up is read off each payment leaving any wallet on your account, on any of the ten chains. Whatever signed it never has to know Centurion exists.

Your walletGas paid byTurn round-ups onPool your walletsApply your stock picksCenturionsetup, in one clickCenturionevery one afterRound-up captured from a swapRound-up captured from a transferBought your stocksRound-up captured from a swap

Sponsored gas

Gas is on us.

Setup, every round-up on every chain, and every stock purchase run on Centurion's gas. The only gas you pay is on trades you place yourself.

$43.35 spent, rounds up to $44.00round-up$2.82$3.47$5.42$8.671×2×5×10×$0.65 spare change × the multiplier$2.17 boost — 5% of the payment, whatever the ×

Multiplier & boost

Spare change, multiplied.

Round up 1×, 2×, 5× or 10×, then add up to 10% of every payment on top. A $0.65 round-up at 10× is $6.50 of stock.

Your walletYour reserve$10 default · buys your stocksWithdraw on Portfolio · no fee

Before it's invested

Take it back, any time.

It waits in your own pot, free to withdraw any time until it buys — and the Stock Tokens land in your wallet, not ours.

One minute, once.

Sign in, pick your stocks, press one button. After that you trade the way you already do, and the portfolio builds itself.

  1. Sign in

    Google, X or an Ethereum wallet. You get a Centurion account with its own wallet, or import the wallets you already trade with.

  2. Pick your stocks

    Up to five Robinhood Stock Tokens and ETFs, split how you want. A starting split is picked for you.

  3. Turn it on

    Choose your round-up settings, and every payment from your wallets starts rounding up automatically. No signatures, no gas.

Pick your stocks once. Then forget about it.

Choose the stocks and ETFs you want, split allocation however you want.

  • NVDANVIDIA
  • AAPLApple
  • TSLATesla
  • MSFTMicrosoft
  • AMZNAmazon
  • GOOGLAlphabet

You stay in charge.

Your keys stay yours, your spare change can only buy the stocks you picked, and one switch turns it all off on every chain.

Your walletsThe contractRoundUpCaptureEnabledoffTurn offCenturioncannot set yoursNothing leaves your wallets while this is off.

On or off

Turn round-ups off in Setup and they stop.

One account-wide switch. Turn it off and no more round-ups leave your wallets, on any chain.

Your picksInside the slippageWorse than your priceAAPL40%NVDA35%MSFT25%Any other stockquoted priceslippage limitNothing is bought

Only your stocks

It can only buy the stocks you picked.

Spare change can only land in your own pot, and a purchase can only be the stocks you picked.

Round-upsYour potMore than 1% offWithin 1%Skipped, not convertedPrice vs ChainlinkConverted to USDGlands in your pot

Price protection

A bad price stops the round-up.

The token you paid with is only converted within 1% of the Chainlink price. Without a fresh price, that round-up is skipped, never taken at a bad rate.

CenturionRound-ups in · Centurion's signer moves themCenturion gone · round-ups stopYour walletThe contractyour spare changeDirect withdrawal · needs nothing of oursYou can withdraw straight from the contract without us.Export your wallet's key, then call withdraw on the contract yourself.

Your keys

Your way out doesn't run through us.

Export any wallet's key from the Wallets page, any time, and take back spare change that isn't invested yet. We can't stop either.

FAQs

No. Round-ups come from any payment your Centurion wallets make, whatever app you use and whichever of the 10 chains it is on. Trade on Hyperliquid, Polymarket, Uniswap or anywhere else exactly as you do now.

10: Robinhood Chain, Ethereum, Base, Arbitrum, HyperEVM, Polygon, BNB Chain, Avalanche, Monad, Arc. Your wallets are the same address on all of them, so there is nothing to enroll per chain. Spare change from every one of them lands in the same pot on Robinhood Chain.

Yes, because both are dollars leaving your own wallet: a Hyperliquid deposit is USDC going to the bridge on Arbitrum or HyperEVM, and topping up Polymarket is USDC leaving your wallet on Polygon. What does not round up is anything that leaves somewhere else — the perp fills inside Hyperliquid happen off the EVM, and each Polymarket bet is signed from their per-user proxy rather than from the address you enrolled.

5% of each round-up, so about 3 cents on a $0.65 round-up. No subscription. Swaps on the Trade page also show a small app fee in the quote (0.20% by default).

We do: setup, every round-up on every chain, and every purchase. The only gas you pay is on trades you place yourself.

Yes, any time from the Portfolio page. No fee.

A token on Robinhood Chain that tracks a stock's price. It is not a real share: no ownership, no voting rights.

No. The signer you grant can only call our contracts, under a cap: round-ups into your own pot, purchases of stocks you picked, and the trades, deposits, withdrawals and reward claims you ask for. There is no admin switch that can drain your funds.

Your next trade could buy your first stock.

One minute to set up. Then every swap, deposit and mint you were going to make anyway starts building a portfolio.