Capital One Customer Transactions
The Capital One Customer Transactions product exposes consumer-permissioned transaction data so approved partners can retrieve and reconcile a customer's Capital One transaction activity. It underpins personal finance, reconciliation, and account visibility use cases for partner integrations. Access is OAuth 2.0 secured through the DevExchange program, tested in the sandbox and promoted to production after partner review. The developer documentation is HTML-only; no publicly downloadable machine-readable specification is offered by Capital One.