Is it possible to connect with banks from third-party APIs, such as Wealth Reader, which does access all bank information (accounts, cards, investment, debt)?

I can provide you with information regarding the capabilities and features offered by QuickBooks, @david-wealthread.

Given the specific requirements and capabilities you mentioned, it would be best to directly contact Wealth Reader or their API support team for further assistance. They will be able to provide you with information on their integration capabilities with QuickBooks Online and the specific features they offer for accessing bank information.

I also recommend reaching out to the Intuit Developer team for guidance. They can provide insights and confirm if integrating with Wealth Reader's API is possible within the QuickBooks Online ecosystem. They have the expertise to guide you through the integration process and ensure that it aligns with Intuit's guidelines and standards.

It's best to post your concern to the Intuit Developer Community. They are more experienced and can assist you with any API concerns you may have.

By contacting both Wealth Reader's API support team and Intuit Developer, you will be able to gather the necessary information and determine the best course of action to connect with Caixabank for business in Spain and access the desired bank information within QuickBooks Online.