Also from Quantro Connect: Quantro Flow — the cloud ERP that runs your whole business · quantroflow.com →

Developers

An API your engineers will actually enjoy

Clean REST, predictable errors, signed webhooks, and sandbox keys you can get in minutes. The gateway is in final pre-launch — request early access and integrate before the queue forms.

Request early access
create a payment
curl https://api.quantroconnect.com/v1/payment_intents \
  -u sk_test_…: \
  -d amount=149000 \
  -d currency=thb \
  -d payment_method_types[]=promptpay \
  -d metadata[order_id]=ORD-2049
POST/v1/payment_intentsCreate a payment — cards, QR (PromptPay), e-wallets, bank transfer.
GET/v1/payments/{id}Retrieve a payment and its full status timeline.
POST/v1/refundsFull or partial refunds against a captured payment.
GET/v1/settlementsSettlement batches with per-transaction breakdown for reconciliation.
POST/v1/webhooksSubscribe to payment lifecycle events, signed and replayable.

Books that reconcile themselves

Every payment taken through Quantro Connect reconciles natively into Quantro Flow, our cloud ERP — sales, ledger, tax invoices, and settlement in one place, with no CSV exports. If you're building for a business that runs on Flow, the integration is already done.