[bogwog]

There are companies that offer APIs to access bank accounts as a service. Plaid.com is one of them, although you might need to search around for another one that supports your bank.

At one point, there was a decent standard called "OFX" which financial institutions were supposed to support. It let you use an app like GNU Cash or QuickBooks which could automatically connect to your bank account. That died apparently and was replaced by some API/standard called "Open Banking". It's shittier in every way since it seems to require a middleman now (like Plaid) whereas with OFX you could just query an endpoint easily.