Introduction

NIXPAY is a payment-orchestration API. You create a payment link, we return a hosted checkout URL, and your customer pays on a secure PSP-hosted page.

NIXPAY is a technical service provider. It never holds, touches, or settles funds, and it never stores card data — a licensed PSP (Mollie for Platforms) performs the regulated payment and settlement. Card entry happens only on the PSP-hosted checkout page, which keeps your PCI DSS scope reduced to SAQ-A.

Base URL

All API requests go to https://api.nixpay.nl.

Test vs live

Every request is authenticated with an API key. Test keys (nixp_test_…) and live keys (nixp_live_…) are fully separate. Start in test; switch the key to go live.

Your first payment link

code

curl -X POST https://api.nixpay.nl/v1/payment-links \
  -H "Authorization: Bearer nixp_test_your_key" \
  -H "Content-Type: application/json" \
  -d '{"amount":{"value":"49.95","currency":"EUR"},"description":"Sample order"}'

See Payment links for the full request and response.