Developers
Build the future of finance with Solaris APIs
Integrate a fully licensed banking infrastructure directly into your product. Our modular REST APIs give your team the flexibility to build, scale, and launch accounts, cards, and lending products seamlessly.
A modular API structure for seamless scaling
Our API is built on modern REST principles and organized by product domains. Whether you are issuing cards or offering loans, you only integrate the endpoints you need.
Onboarding & KYC
Create customer profiles, bind devices for Strong Customer Authentication (SCA), and trigger compliant identification flows (VideoIdent, Bankident, eID).
Banking & Cards
Connect to our core ledger. Manage B2B and B2C accounts, execute SEPA and Instant payments, and handle card issuance, lifecycle, and tokenization.
Lending
Access endpoints for consumer loans, overdrafts, and Splitpay functionality.
From sandbox to production in three steps
We designed our onboarding journey to ensure your integration is both technically robust and fully compliant with banking regulations.
- 1
Technical Foundation
Get your API credentials, configure your development environment, and set up your webhook subscriptions. Test your integration safely in our dedicated Sandbox environment.
- 2
Compliance & Data
Because Solaris is a regulated bank, we guide you through implementing the required legal screens, data collection flows, and tax information requirements.
- 3
Customer Onboarding
Now, select a customer type to start testing. Trigger workflows to onboard a person (B2C) or entity (B2B), open accounts, and issue cards. For Lending services, the procedure differs; see our API docs.
