NewQint v1 — production-grade gateway

Accept crypto.
Settle in fiat.

Qint is an API-first crypto payment gateway for merchants. Spin up payment intents, host beautiful checkouts, and reconcile to settlement — all backed by an audited transaction lifecycle and real-time webhooks.

Get started — it's freeRead the docs
No card, no setup fee WooCommerce plugin Hosted payment links
Built with, and supported by, the crypto-payments ecosystem
  • WooCommerce
  • Fireblocks
  • Ethereum
  • Polygon
  • Bitcoin
  • Circle USDC
  • Tether
  • Solana
  • Lightning Network
Trusted by teams shipping crypto payments end-to-end
  • Northwind
  • Pippin
  • Stack & Co
  • Lumen Labs
  • Vela
  • Halberd
Platform

Everything you need to accept crypto, built on rails you can trust.

Qint is engineered for production — state-machine driven, event-friendly, and audit-clean. Drop in the SDK, link the gateway, and start collecting payments in days, not quarters.

API-first payment intents

Create a payment intent, deliver instructions, and receive webhooks as the transaction moves from initiated through settled.

Hosted payment links

Beautiful Stripe-style checkout pages with wallet address, QR code, live status, and a countdown timer — no front-end required.

WooCommerce plugin

Native gateway plugin with merchant settings, hosted checkout redirect, and order status updates wired to webhooks.

Idempotency & safe retries

Every request is idempotent. Retry without fear — duplicate intents collapse and the audit trail stays clean.

Signed webhooks

HMAC-signed event delivery with replay protection. Listen for status changes and reconcile state automatically.

Immutable audit trail

Every state transition, retry, and webhook delivery is recorded — ready for reconciliation, disputes, and compliance.

How it works

A merchant platform, an execution partner API, and a checkout your buyers will pay on.

Qint orchestrates the entire flow — from intent creation through blockchain confirmation and fiat settlement — and surfaces it as a clean dashboard, plugin, and SDK.

Hosted checkout

Payment links your buyers actually want to pay on

QR + address + live status + countdown. Mobile-perfect. Branded to your merchant.

Pippin Coffee · Order #4029 14:21
124.00 USDC
≈ €113.40 · Polygon
U0x9c1aB3…f7e21D02e
Waiting for confirmation1/12 confirmations
Lifecycle

State machine, not vibes

Initiated → Pending → Confirmed → Settled. Failed and Expired are first-class.

Initiated Pending Confirmed Settled
Webhooks

Signed, retried, replayable

HMAC signatures, idempotency keys, and a delivery log you can audit.

POST /webhooks/orders
Qint-Signature: t=1715,v1=8a91…
Event: payment.confirmed
200 OK · 84ms
Reconcile

Settled, not silenced

CSV exports, daily and monthly summaries, and audit logs in one place.

14:02order_4029+124.00
13:51order_4028+320.00
Assets

Major chains, major coins

BTC, ETH, USDT, USDC and more — on the networks your buyers already use.

B BTCE ETHU USDTU USDCS SOLM MATICD DAI
Trust

Built for the licensed flow

Merchant status gating, role-based access, and an immutable audit trail — paired with a regulated execution partner for compliance and payouts.

KYC verified RBAC Audited
Flow

Four steps from intent to settlement.

Idempotent, audited, and built around an event-driven core. No state guessing.

01

Create an intent

POST /v1/payment_intents with an amount, currency and an order reference. Qint returns an intent and a hosted checkout URL.

02

Buyer pays

We host the checkout: wallet address, QR, network, timer, and live status — all branded to your merchant.

03

Webhook fires

We watch the chain and ping your endpoint with signed events at every state transition.

04

Settle in fiat

Funds are converted and settled to fiat through our regulated execution partner. CSV exports and audit logs are ready for finance.

Developers

An API your engineers will actually like.

Stripe-shaped semantics, idempotency keys, signed webhooks, and SDKs for the languages you ship with. Drop-in for new builds and clean to integrate with legacy checkouts alike.

  • REST + JSON, OpenAPI spec, typed SDKs
  • HMAC-signed webhooks with replay protection
  • Idempotency on every mutating request
  • Sandbox keys & test wallets out of the box
Node.js · create_intent
import Qint from class="s">"@qint/node";

const qint = new Qint(process.env.QINT_API_KEY);

class=class="s">"c">// 1) Create a payment intent
const intent = await qint.paymentIntents.create({
  amount: class="s">"124.00",
  currency: class="s">"USDC",
  network: class="s">"polygon",
  order_ref: class="s">"order_4029",
  callback_url: class="s">"https:class="cclass="s">">//shop.pippin.co/webhooks/qint",
});

class=class="s">"c">// 2) Redirect your buyer to the hosted checkout
console.log(intent.checkout_url);
Integrations

Ship on the platforms your merchants already use.

Qint is API-first, but you don't have to start there. Choose the integration that fits.

Live
WooCommerce
Native gateway plugin. Add Qint as a checkout option, manage settings in WP admin, and sync order status from webhooks.
Live
Hosted Payment Links
Create a link from your dashboard or via API. Send it anywhere — email, invoice, SMS — and we host the checkout.
Coming soon
Shopify
Drop-in app for Shopify merchants. Same Qint flow, native Shopify checkout UX. Coming after MVP launch.
Coming soon
POS
Point-of-sale terminal flow for in-person crypto payments with QR + live status.
99.99%
Webhook delivery success
<200ms
Median intent creation
8+
Networks supported at launch
100%
Source code ownership
Pricing

Pay for what you process. Nothing else.

Transparent, transaction-based pricing. No setup fees, no minimums. Volume discounts kick in automatically as you grow.

Starter
$0 + 1.0% per transaction

Everything you need to test the gateway and ship your first integration.

  • API + Sandbox keys
  • Hosted payment links
  • WooCommerce plugin
  • Webhook + signed events
  • CSV exports
  • Email support
Start free
Most popular
Growth
0.7% per transaction · no monthly fee

For merchants moving real volume. Lower per-tx fee and priority support.

  • Everything in Starter
  • Priority webhook delivery
  • Custom branded checkout
  • Multi-merchant workspaces
  • Role-based access
  • Same-day support
Start with Growth
Scale
Custom volume-based pricing

Tailored for high volume, regulated, and multi-region merchants.

  • Everything in Growth
  • Dedicated execution partner pool
  • Custom settlement schedule
  • Compliance + audit support
  • 99.9% SLA
  • Slack-based support
Talk to sales
Customers

Teams who'd rather ship than build a gateway.

“We went from a slide deck to taking real USDC payments in under three weeks. The webhook semantics are a chef’s kiss.”
MH
Mira Halberg
Founder, Pippin Coffee
“The hosted checkout did the heavy lifting we did not want to do. Our team only had to wire two webhooks and a redirect.”
AS
Andrei Sokolov
Engineering, Vela
“Reconciliation used to be a Friday-night sport. With Qint’s audit trail and CSV exports, finance closes out in minutes.”
SL
Sofia Lehmann
CFO, Northwind
FAQ

Questions, answered.

Which assets and networks does Qint support?

At launch we support BTC, ETH, USDT, USDC, SOL and a growing set of major coins across Bitcoin, Ethereum, Polygon, Solana, and BSC. The full list lives in the developer docs and grows with merchant demand.

How does fiat settlement work?

Qint orchestrates the transaction lifecycle end-to-end: wallet provisioning, blockchain confirmation, and fiat payout. Licensed-entity handling for compliance and payouts is provided by our regulated execution partner; Qint owns the rails and the merchant experience.

Do I need to be onboarded before I can take payments?

Yes. Merchant status is gated before payment intents can be created. Once your account is approved, intent creation is unlocked instantly across API and dashboard.

How are webhooks secured?

Every webhook is signed with an HMAC signature in the Qint-Signature header. Signatures include a timestamp to prevent replay. Idempotency keys ensure retries collapse to a single state transition.

Is there a WooCommerce plugin?

Yes — the WooCommerce plugin ships in the MVP. Merchants install it from the marketplace, paste their Qint API key, and we redirect buyers to the hosted checkout. Order status syncs from webhooks.

Can I host my own checkout?

Absolutely. The hosted checkout is the default, but every primitive — wallet address, QR, timer, status — is available over the API. Build whatever experience your brand needs.

Where does my source code live?

You own all code and deliverables on full payment. Qint can also operate as a SaaS for merchants who would rather not host the platform themselves.

Take your first crypto payment this week.

Spin up a sandbox key, drop in the SDK, and you're in production by Friday.