n1coePayDocs API reference

Changelog

Changes to the ePay API and n1co.js that affect your integration.

October 18, 2026: first release#

API 0.9.0 n1co.js /v1

ePay API#

  • Setup with POST /v1/setup: keys, webhook secret and rotation.
  • Customers inside the request: customer travels with your id, name, email and phone.
  • Card sessions to save cards.
  • Payment intents with a new or saved card, 3D Secure, expiry and cancellation.
  • Full refunds with POST /v1/refunds.
  • Webhooks signed with Standard Webhooks, and reading events.

n1co.js#

  • The card element, with options, appearance, events and methods.
  • capture() to save cards.
  • confirmPayment() and retrievePaymentIntent() to charge, with 3D Secure in an n1co window.