PostFinance API
🇨🇭 Switzerland
Independent reference page. BankSnipe is not PostFinance and is not affiliated with or endorsed by it. We don't collect logins, passwords or account details. The URLs below are listed as plain text (not clickable) — copy and paste them into your browser to reach PostFinance's official domains.
PostFinance exposes a country-specific open banking API, covering account information (AIS) and payment initiation (PIS). We have not recorded any premium APIs beyond the core account and payment APIs.
Access uses OAuth 2.0 over a REST interface. A sandbox is available, though access is not self-service.
The API serves Switzerland. BankSnipe rates PostFinance's API maturity 3/5 (Developing), last reviewed 11 Jun 2026.
Overview
- API standard
- Other
- API style
- REST
- Authentication
- OAuth 2.0
- Sandbox
- Available
- Last reviewed
- 11 Jun 2026 · 2 months ago
Products
Maturity signals
- Account info (AIS)
- Payment initiation (PIS)
- Confirmation of funds (CBPII)
- Premium / beyond-PSD2 APIs
Links
- Website
- https://www.postfinance.ch
- Developer portal
- https://blink.six-group.com/en/for-developers
Notes
Switzerland sits outside PSD2; PostFinance offers account access and payments through the SIX bLink open-finance platform (SFTI Common API standard), going live with multibanking in late 2025. Onboarding and a test environment are via bLink.
PostFinance API: frequently asked questions
Does PostFinance have a public API?
Yes. PostFinance publishes open banking APIs covering account information (AIS) and payment initiation (PIS). Registration and documentation live on its developer portal at https://blink.six-group.com/en/for-developers.
Does PostFinance offer an API sandbox?
Yes. Sandbox access is available but not self-service, so you go through the bank to get in.
Which open banking standard does the PostFinance API use?
Other: A non-standard or country-specific open-banking API. Two banks on the same standard can still differ in the details, so read the bank's own documentation before you build.
How do you authenticate with the PostFinance API?
OAuth 2.0. Production access to the regulated endpoints also means registering as a licensed third-party provider with the bank.
Does PostFinance offer premium APIs?
Not that we have recorded. PostFinance's listing covers the core account and payment APIs only.
Which countries does the PostFinance API cover?
Switzerland.
Is the PostFinance API free to use?
PostFinance's APIs sit outside the EEA open banking mandate, so pricing is entirely the bank's own call. BankSnipe does not track pricing, so confirm it with the bank.
How mature is the PostFinance API?
BankSnipe scores it 3 out of 5 (Developing). The score counts how many of the four product signals are live: AIS, PIS, CBPII and premium APIs beyond the core account and payment APIs.