Due to Capital One's stringent internal security policies, it is not possible for any company to connect to their bank online. We at Checkbook use a bank aggregator Yodlee and Plaid, neither of which are able to connect with Capital One.

Capital One enforces their own form of multi factor authentication in addition to the standard one enforced by all bank aggregators, including our partner vendors. This added step is what prevents any financial technology company from linking to a Capital One account.

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