Infrastructure powered by Quanta $PWR Protocol powered by $CARDS
Robinhood Chain/Stock Tokens/Self custodial

Load any stock Send it to anyone Spend it anywhere

A card is a portfolio anyone can hold. Load it with tokenized stocks on Robinhood Chain, then share a claim link or send it to any address. The balance stays invested until the moment it is spent: pay online, swap onchain, or withdraw.

See how it works Live on Robinhood Chain · 100ms blocks · markets never close
cards HOOD CHAIN
Card value
$0.00
3.72 NVDA · marked live
•••• 7C4F NVDA · one claim
Built on Robinhood Chain

Robinhood Chain is an Ethereum Layer 2 on the Arbitrum Orbit stack, chain ID 4663, built for tokenized real world assets. Stock Tokens are plain ERC-20 contracts with live Chainlink price feeds, so a card can hold real equity exposure and settle in 100ms blocks, 24/7.

chain 4663 100ms blocks ERC-20 stocks
0+
Stock Tokens loadable
0/7
Markets, onchain
0
Ways to spend a card
0%
Self custodial

CARDS turns NVDA TSLA SPY or any Stock Token on Robinhood Chain into a spendable card. Hand it to a friend, a client, a team, a stranger. The shares keep tracking the market until the second they are used: pay swap withdraw and the contract enforces your rules.

One card · Three exits

They spend it
however they want.

A card holds real equity exposure, not a frozen amount. Whoever holds it picks the exit and the position follows.

1

Pay online

Generate virtual card credentials and check out anywhere cards are accepted. Just enough of the position is sold at the Chainlink price to settle the purchase, the rest stays invested.

2

Swap onchain

Rotate the card from one Stock Token to another, or into USDG, straight from the card. Routed through onchain liquidity, no brokerage account involved.

3

Withdraw anywhere

Sweep the Stock Tokens to any address on Robinhood Chain in one action. They land in the holder's own wallet as plain ERC-20s.

From zero to spendable

Four steps.
No forms. No waiting.

1

Mint a card

Pick a card type and a color. It becomes a self custodial vault contract on Robinhood Chain.

gift · payroll · bounty · burner
2

Load tokenized stocks

NVDA, TSLA, SPY, PWR or USDG. Mix several tickers on a single card and let it track the market.

200+ Stock Tokens
3

Share a link, or send to an address

Send a claim link or QR to anyone, or push the card straight to any wallet address. It stays an onchain object end to end.

cards.app/c/7C4F… · 0x9Ab0…
4

They choose the exit

Pay online, swap onchain, or withdraw. The card enforces your rules.

pay · swap · withdraw
Templates, not limits

A card for every use case.

Keep scrolling. Every rule is programmable, so combine them into whatever you need.

Gift

Gift Card

One claim, an optional message, and it returns to you if unclaimed.

0.42 NVDA
Payroll

Payroll Card

Paid in tokenized stock every month, weekly spend cap, revocable by the issuer.

4.10 SPY
Bounty

Bounty Card

Multi claim: the first people to finish the task each claim a share.

0.78 PWR
Allowance

Allowance Card

Drips in weekly, spend is capped, swap disabled. Perfect for family.

50 USDG / wk
Burner

Burner Card

One spend, then it destroys itself. Nothing to trace, nothing left.

40 USDG
Custom

Build your own

Start from a blank card and program every rule yourself.

Programmable by design

Rules live on the card,
enforced onchain.

Expiry and clawback

Unclaimed or unspent positions return to the issuer automatically.

Spend limits

Cap by transaction, day, or week. The chain enforces it, not a policy.

Reloadable streams

Top up manually or stream shares in on a schedule, like an equity salary.

Multi claim

One card, many claimants. Airdrops, bounties, and team budgets.

Exit control

Enable or disable each path per card: pay, swap, withdraw. Lock a card to a single ticker if you want.

card "team offsite budget" {
  stock: SPY,
  load_shares: 6.5,
  claimants: 8,
  limit_per_day: 150,
  expires: "30d",
  clawback: true,
  exits: [pay, withdraw]
}
Infrastructure

Cards run on the same rails
as the stocks themselves.

We did not invent a settlement format. A CARDS vault speaks the exact Stock Token standard used by tokenized equities on Robinhood Chain, so anything that holds a share can fund a card.

ERC-20 · 18 decimals

Plain tokens, no wrapper

Every Stock Token is an ordinary ERC-20 contract with 18 decimals, so a card holds the real token rather than a synthetic receipt. Fractions are native: 0.42 NVDA is a normal balance, not a special case.

Chainlink feeds

Priced onchain, at spend time

Each ticker carries a live Chainlink price feed. The card contract reads it directly to size a checkout, so the amount sold is computed onchain instead of trusting an off-chain quote.

ERC-8056

Splits handled by the standard

Corporate actions use the scaled UI standard: a uiMultiplier update and TransferWithScaledUI events. A 2:1 split reprices every card at once, with no migration and no reissued card.

Quanta · PWR

Built against a live token

The vaults were written and tested against the Quanta Stock Token, one of the tokenized equities live on chain 4663. Whatever works for PWR works for every other ticker in the registry.

PWR
Reference contract · Quanta on Robinhood Chain
0x9Ab02Ead789b6903c3c44d0ED32F9c707CDF12FD

Our integration tests mint, load, spend and claw back cards against this token on mainnet. Every other Stock Token plugs into the same code path.

View on Robinscan
The protocol token

$CARDS captures
what the cards earn.

Every card spend and every onchain swap pays a small protocol fee, collected in USDG. Stake $CARDS and you hold a claim on that fee stream: rewards accrue block by block and can be claimed at any time. Unstaking has a short cooldown so the pool stays honest.

Card activity
spend · swap
Protocol fee
collected in USDG
Staking pool
claimable by stakers

Revenue share

Staked $CARDS earns a pro rata share of protocol fees. Rewards land in USDG, so what you claim is not paid in more tokens.

Fee tiers

The more you stake, the lower the fee on your own cards, and the higher your batch mint ceiling for airdrops and payroll runs.

Listings and parameters

Stakers vote on which Stock Tokens the cards support, the fee schedule, and how the treasury splits between the pool and the build.

Card perks

Staking unlocks premium card designs, priority claim links, and early access to new card types before they open to everyone.

Read the mechanics

Fee levels and reward mechanics are set by governance and can change. Staking rewards depend entirely on protocol usage, so no return is promised or implied.

Your keys, your shares

Self custody,
end to end.

A card is a contract you control, not a balance we hold. No account to open, nothing to receive a card, and the tokens never sit on our books.

Cards are funded through a relay pool, so a card address is not trivially linked back to your main wallet onchain.

self custodial onchain rules relay funded no account to receive open source contracts

Put value in anyone's hands.

Your first card takes less than a minute. Load it with the stocks you already believe in.

Launch App
Infrastructure by Quanta $PWR Settled on Robinhood Chain Protocol powered by $CARDS