Question 1

Which is better, Account and Transaction API Specification - UK or bunq API?

Accepted Answer

If you need a Finance API that's easy to integrate, go with bunq API. Account and Transaction API Specification - UK uses apiKey while bunq API uses apiKey.

Question 2

What is the main difference between Account and Transaction API Specification - UK and bunq API?

Accepted Answer

Account and Transaction API Specification - UK: ## Functionality at a glance

The NBG "UK OPB - Account and Transaction v3.1.5" API follows the [UK Open Banking Specification
    v3.1.5](https://openbankinguk.github.io/read-write-api-site3/v3.... bunq API: ***UPDATE:*** *We have released a [beta version of the new bunq API documentation.](https://beta.doc.bunq.com)*

***NOTICE:***  *We have updated the sandbox base url to `https://public-api.sandbox..... They differ in authentication (apiKey vs apiKey), HTTPS support (yes vs no), and CORS (unknown vs unknown).

Question 3

Which Finance API is easier to integrate?

Accepted Answer

Both have similar integration complexity. Account and Transaction API Specification - UK uses apiKey and bunq API uses apiKey.

Account and Transaction API Specification - UK vs bunq API

Account and Transaction API Specification - UK

bunq API

When to use which?