A group card with money in it.
Everyone writes a note and chips in. The money goes straight to their wallet, on Robinhood Chain.
For Liz
Leaving ยท 18 June
- You are the one who answered every question.Sam
- Nobody made a Monday feel like a Friday the way you did.Priya
- The team was a team because of you.Tom
Chipped in
Straight to liz.eth
0x8f3aC5d2E91b4A7f0e6D3c2B1a9F8e7D6c5B4a31
Or send it from an exchange.
An example. The names and the address are made up.
What it is
What is a group card with money in it?
One link the group opens. Everyone writes a note and chips in, and the money goes straight to the wallet of the person it is for. tbfcrypto never holds it.
How it works
Make it, share it, they open it.
-
Make it
Their name, their wallet address or ENS name, and the day. $5. No account.
-
Share the link
Everyone writes a note. Anyone can chip in, from a wallet or an exchange.
-
They open it
On the day they read every note and claim the money with one signature.
Your money
We never hold your money.
What people chip in sits in a contract on the chain. Only the person it is for can claim it.
- You sign for the exact amount. Never an open-ended approval.
- The full address and their ENS name are on the card before you pay.
- Our 1% comes off inside the same payment, through a contract with no owner.
- Nobody needs ETH. We pay the network charge.
Chains
Robinhood Chain, then Base and Solana.
Robinhood Chain
USDG
Robinhood Wallet, MetaMask, Rabby, or any wallet by WalletConnect
Base Coming soon
USDC
Solana Coming soon
USDC
Security
How it stays safe.
No customer balance
We hold nothing of yours.
Hardware keys
Our fee wallet needs two of three keys, held by different people.
A locked domain
Registry lock and DNSSEC on tbfcrypto.com.
No outside code
The pay page runs only its own code. This page runs none.
Watched every minute
If the pay page changes and we did not change it, payments stop.
Fees
What it costs.
Public card
$5
- Anyone with the link can write and chip in
Private card Invite only
$20
- Only the wallets you invite can see it, write and chip in
- Make a public card private later for $15
- Chipping in
- 1% on top, never more than $25
- Keeping the card as an NFT
- $3, if they want it
Fees as of October 2026.
Questions
What people ask.
Do I need a wallet?
Not to write a note. To chip in, use a wallet or send from an exchange.
What if they do not have a wallet?
The money waits on the chain until they set one up and claim it.
Can I choose who sees the card?
Yes, with a private card. Only the wallets you invite can open it.
Why USDG?
It tracks the US dollar, so what people give is what arrives.
Is this an investment?
No. It is a card and a way to pay somebody.