Open Banking Developer Portal
Welcome to the Open Banking Developer Portal. This is the Lunar developer portal for the Open Banking APIs. Here you will find all the information you need to integrate as a Third Party Provider with Lunar and our users’ data.
Direct domestic credit transfer initiation (POST /payments/domestic-credit-transfer) is deprecated and scheduled for deletion
in Q1 2027. The draft flow replaces single-shot initiation with staged payment
preparation, much improved validation before approval (isValid, localized
validationErrors), and clearer payment error handling when a transfer fails
(paymentError, re-approval without recreating the draft). New and existing
integrations should switch to the draft flow — see Migration from direct DCT
to drafts for
field mapping and flow changes. See the 0.9.1 API
spec for details.
Overview
Our Open Banking API allows third-party developers to build applications and services that interact with bank accounts, enabling:
- Account Information Services (AIS) - Access account data with user consent
- Payment Initiation Services (PIS) - Initiate payments on behalf of users