Crypto Payments Into a Wallet Only You Control
Six coins across four chains, each payment derived from your own extended public key. The coins land in your wallet and Blockra never holds them — there is nothing here to withdraw.
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One checkout, and it takes major card brands, quick checkout methods and buy now, pay later — with nothing else to integrate.
Features
Stablecoins on Either Chain
USDC and USDT settle on Ethereum or Tron. The buyer picks at checkout — TRC-20 when they want the cheap fee, ERC-20 when that is all their exchange will send.
A New Address Per Invoice
Bitcoin and Litecoin invoices each get their own address. Where the coins landed is what identifies the order, so nobody has to remember to attach a reference.
A wallet made on your device, not ours
There is no account to fund and no balance to top up. Blockra creates a wallet in your browser — or takes one you already have — and the payments go straight into it.
01. Create
Twelve words, generated in your browser. Blockra shows you the phrase, then asks you to type three of them back before it will go any further. Already have a Blockra wallet? Import that phrase instead.
02. Lock
Only the watch-only half leaves. Your device works out the public keys and sends those. The phrase itself is encrypted under a password we never receive, and cannot reset for you.
03. Get paid
Every invoice derives its own address. Blockra watches the chain and marks the payment complete once it has enough confirmations. The coins land in a wallet only your phrase can spend.
Card payouts land in your own Stripe account. Coins land at addresses derived from a key we have never held. Blockra is the part in the middle — it builds the checkout, watches the chain and tells you when the money arrived, and at no point is the money ours to hold, freeze or lose.
There is no balance page here because there is no balance of yours on our side.
A key that can watch, but cannot spend
An extended public key derives addresses and reveals balances. It has no signing half. That is not a policy we could change our minds about later — it is arithmetic.
Learn moreYour browser derives the watch-only keys and posts those. The API refuses any extended key carrying a private half, so there is no route — bug or otherwise — that lands a spending key in our database.
Blockra Wallet generates the phrase locally and encrypts it to a password we never receive and cannot reset. Moving it to your phone happens inside the QR code, with no server in the middle.
An ordinary BIP-39 phrase on standard paths — BIP84 for Bitcoin and Litecoin, BIP44 for Ethereum and Tron. Type it into any wallet that speaks those and the money is already there.
- Watch-only keys, enforced
- No seed on our servers
- Every payment on a public chain
- Nothing for us to freeze
A custodial gateway can hold your money, and sometimes does. Blockra has no account to freeze and no button to press — the coins were never anywhere but your wallet.
The awkward parts, already handled
Prices move while a buyer finds their wallet, people pay a few atoms short, and two customers can send to the same Ethereum address at once. None of that should land on you at the end of the month.
The rate is fixed at checkout
The price is locked the moment the invoice exists, so you are owed a specific quantity of coin rather than whatever the market does over the next half hour. The invoice holds that rate for thirty minutes and then expires cleanly.
- Rate frozen at checkout, not at settlement
- Thirty-minute window, then the invoice expires
- Value snapshotted in every currency you report in
Paid-Enough Tolerance
A hair short still settles; overpaying credits in full.
Amount Matching
Two invoices, one address, told apart by amount.
Confirmations
Two blocks on Bitcoin, twenty on Tron, tracked live.
On-Chain Proof
Every payment carries its transaction hash.
Start Taking Payments
Cards and crypto in one checkout, settling straight to accounts and wallets you control. No platform fees, and nothing to deploy.
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