Post-quantum
tweet payments.

Write who and how much, tag @twyptpay, post. It settles on Solana, and every payment comes with a receipt signed with a post-quantum signature.

Continue with X See the post

You post

The post

Write it the way
you would say it.

Fill it in here and post it from the account you signed in with. That post is the payment.

You

posting on X

Post on X

@twyptpay pay @friend 5 solPays @friend from your balance. send and tip work the same as pay.
@twyptpay pay 5 solAs a reply, it pays the person you are replying to.
@twyptpay tip $20 @friendA dollar sign means USDT.

After you post

Nothing to confirm in a second app. The post is read, the transfer is sent, and both sides see it.

01
You post
From the X account you signed in with, so nobody else can spend your balance.
02
TWYPT reads it
Mentions are checked every couple of minutes. Each post pays once, however often it is seen.
03
Solana moves it
A normal transfer from your wallet to theirs, confirmed on-chain before it counts.
04
The receipt is signed
It shows in Activity on both accounts, with a receipt signed with ML-DSA that you can check and keep.

The facts

TWYPT fee: 0%; You pay Solana's network fee, a fraction of a cent, in SOL.
The post-quantum part: Every payment has a signed receipt; Signed with ML-DSA-65 (FIPS 204), a signature built to hold against quantum computers. You verify it in your own browser and can download it.
What it is not: A new kind of transfer; The money moves as a normal Solana transfer, signed the way Solana signs today. The receipt is what stays checkable if that ever breaks.
What you can send: SOL and USDT; Keep a little SOL in the wallet. Fees are paid in SOL even when you send USDT.
Your wallet: One per X account; Made the first time you sign in, same address every time after. TWYPT holds it for you and signs when you post or press pay.
Paying someone new: They do not need an account; A post still pays them. The money waits in a wallet that is theirs once they sign in with X.
Per payment: Up to 50 SOL or 10,000 USDT; A ceiling on every transfer, so a typo cannot empty a wallet.
On the record: Public Solana transfers; Amounts and addresses are visible on-chain like any other transfer.