Centurion Docs
Round-ups
Every payment is rounded up to the next dollar, on all 10 chains. Here's what counts and where the money comes from.
What gets rounded up
Money leaving your wallet counts, on any of the 10 chains:
- Token swaps (any DEX, any chain)
- Perp exchange deposits (Hyperliquid, GMX)
- Prediction-market positions (Polymarket)
- NFT mints and purchases
- DeFi deposits (Aave, Pendle)
- Stock Token trades
- Any token or coin transfer
- Bridge transactions
Gas fees don't count.
How pricing works
Each transaction needs a USD value. We try these in order:
- 1
Chainlink price feeds
Used for each chain's own coin, the stablecoins, and listed Stock Tokens that have a feed.
- 2
Robinhood Stock Token quotes
Official bid/ask for every active Stock Token on this chain.
- 3
The other side of the same swap
If you paid with an unpriced token, we use the stablecoin or chain coin that moved in that transaction.
- 4
Pool prices
Spot from the token's own pool, as a last resort.
- ×
Skipped
If nothing can price a transaction, it's skipped. We never guess.
The math
| You pay | Round-up (1×) | Round-up (2×) | 2× with +2% boost |
|---|---|---|---|
| $4.35 | $0.65 | $1.30 | $1.38 |
| $23.40 | $0.60 | $1.20 | $1.66 |
| $12.00 | $0.00 | $0.00 | $0.24 |
| $100.00 | $0.00 | $0.00 | $2.00 |
A whole-dollar payment has nothing to round up, but boost still applies.
Multiplier
Multiplies every round-up. At 5×, a $0.65 round-up becomes $3.25.
Boost
Boost adds a percentage of every transaction on top of the round-up, including whole-dollar payments.
$100 with +2% boost adds $2.00.
Streaks
One round-up a day keeps your streak going. Home shows your current streak, best streak, and total active days.
You can download a card with your streak stats. It never shows your wallet address.
How a round-up is paid
From the wallet that spent, on the chain it spent on: USDG on Robinhood Chain or USDC elsewhere if it holds enough, otherwise the chain's own coin converted at the Chainlink price, never more than 1% worse. Centurion's signer moves exactly the round-up; you do not approve each one. Wherever it was paid, it is credited to your one pot on Robinhood Chain at once.
If that wallet holds less than the round-up, we take what it holds. If it holds nothing usable, the round-up is skipped, with the reason shown in the app. Nothing waits for a top-up.
When round-ups are collected
Round-ups are collected in groups, once you have about $1 of them or after a few hours.