Account and Transaction API Specification - UK vs Portfolio Optimizer
If you need a Finance API that's easy to integrate, go with Portfolio Optimizer.
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...
Portfolio Optimizer
Portfolio analysis and optimization
Account and Transaction API Specification - UK
- Simple API key authentication
- HTTPS supported
- Currently flagged as inactive
Portfolio Optimizer
- No authentication required
- HTTPS supported
- CORS enabled for frontend use
| Feature | Account and Transaction API Specification - UK | Portfolio Optimizer |
|---|---|---|
| Authentication | apiKey | None |
| HTTPS | Yes | Yes |
| CORS | Unknown | Yes |
When to use which?
Portfolio Optimizer is the better choice for quick prototypes and hackathons since it requires no authentication. Portfolio Optimizer works directly from the browser with CORS enabled, making it better for frontend-only apps.