Hosted checkout, invoices and an API that settle into a double-entry ledger. Choose who pays the fee, put your own brand on the checkout, and screen every incoming payment before it is credited.
| Invoice | Asset | Amount | Status |
|---|---|---|---|
| A-20419 |  USDT | $249.00 | Paid |
| A-20418 |  BTC | $1,180.00 | Confirming |
| A-20417 |  USDC | $89.90 | Paid |
| A-20416 |  ETH | $420.00 | Expired |
14 cryptocurrencies · 29 assets across 15 networks
BTC
ETH4 networks
USDT6 networks
USDC8 networks
TRX
BNB
POL
LTC
DOGE
SOL
BCH
XRP
TON
AVAX
USDT · Tron251.52USDC · Base251.52Bitcoin0.004106Customers pick a coin, scan a QR code or pay in one click from a browser wallet such as MetaMask. The rate is locked for the invoice, memos and destination tags are handled, and you see status changes as they happen.
Example on a 100.00 USDT invoice at the 1% fee. Set it per store, or per invoice through the API.
USDT · Tron251.52USDC · Base251.52Bitcoin0.004106Ethereum0.101421EVM payments straight from MetaMask, Rabby, Coinbase Wallet or any injected browser wallet, with the chain switched automatically.
Absorb the 1% fee or pass it on to the customer, per store or per invoice.
Your logo, colours and name on the payment page. Coinvex branding can be removed.
Every credit and fee is booked as balanced ledger entries, so balances are always auditable.
Use custodial deposit addresses or connect your own wallet with an xpub for non-custodial payouts.
Price invoices in USD, EUR, GBP and more; the crypto amount is quoted at checkout.
Risk checks run on every incoming payment before it is credited. Each decision is stored with its score and reasons, giving your compliance team a complete record.
Sender blocklists, amount and velocity rules. Risky payments are held for review.
HMAC-SHA256 signatures, timestamp checks, read-only keys and IP allowlists.
Every webhook is signed and retried with backoff; private network targets are blocked.
Idempotency keys and duplicate-transaction checks prevent double credits.
14 cryptocurrencies, 29 assets, 15 networks — taken directly from what is enabled on the platform.
A REST API with signed requests and idempotency keys, plus webhooks for every status change. Integrations built for the legacy v1 signing scheme keep working unchanged.
# Create an invoice curl -X POST https://coinvex-demo.aucip.com/api/v1/invoices \ -H "X-Api-Key: pk_live_…" -H "X-Signature-Version: 2" \ -H "X-Timestamp: $TS" -H "X-Signature: $SIG" \ -d '{"amount":"249","currency":"USD","fee_payer":"customer"}'# Create an invoice (v2 signature: HMAC-SHA256 of "ts METHOD path body") curl -X POST https://coinvex-demo.aucip.com/api/v1/invoices \ -H "X-Api-Key: pk_live_…" \ -H "X-Signature-Version: 2" \ -H "X-Timestamp: $TS" -H "X-Signature: $SIG" \ -H "Idempotency-Key: order-20419" \ -d '{"amount":"249","currency":"USD","fee_payer":"customer"}' # 201 Created → { "status": "new", "checkout_url": "https://coinvex-demo.aucip.com/pay/9f2c…" } $body = json_encode(['amount' => '249', 'currency' => 'USD', 'fee_payer' => 'customer']); $ts = (string) time(); $sig = hash_hmac('sha256', "$ts POST /api/v1/invoices $body", $secret); $res = Http::withHeaders([ 'X-Api-Key' => $key, 'X-Timestamp' => $ts, 'X-Signature' => $sig, 'X-Signature-Version' => '2', ])->withBody($body, 'application/json')->post('https://coinvex-demo.aucip.com/api/v1/invoices'); redirect($res['data']['checkout_url']); import crypto from 'node:crypto'; const body = JSON.stringify({ amount: '249', currency: 'USD', fee_payer: 'customer' }); const ts = String(Math.floor(Date.now() / 1000)); const sig = crypto.createHmac('sha256', SECRET) .update(`${ts} POST /api/v1/invoices ${body}`).digest('hex'); const res = await fetch('https://coinvex-demo.aucip.com/api/v1/invoices', { method: 'POST', body, headers: { 'X-Api-Key': KEY, 'X-Timestamp': ts, 'X-Signature': sig, 'X-Signature-Version': '2' }, }); const { data } = await res.json(); // data.checkout_url import hmac, hashlib, json, time, requests body = json.dumps({"amount": "249", "currency": "USD", "fee_payer": "customer"}) ts = str(int(time.time())) sig = hmac.new(SECRET.encode(), f"{ts} POST /api/v1/invoices {body}".encode(), hashlib.sha256).hexdigest() res = requests.post("https://coinvex-demo.aucip.com/api/v1/invoices", data=body, headers={ "X-Api-Key": KEY, "X-Timestamp": ts, "X-Signature": sig, "X-Signature-Version": "2", }) print(res.json()["data"]["checkout_url"])
No setup fee and no monthly fee. Network fees on withdrawals are passed through at cost.
Create an accountCreate an account, add your store, and share your first payment link.