generated: '2026-07-23'
method: searched
source: >-
  https://developer.capitalone.com/documentation/o-auth ; Capital One FDX
  membership (Financial Data Exchange); DevExchange program documentation
notes: >-
  Standards posture for the Capital One DevExchange partner APIs. No downloadable
  OpenAPI is published, so spec-derived assertions are limited; entries below are
  grounded in the documented OAuth model and Capital One's public open-finance
  positioning.
standards:
- id: oauth2
  conforms: true
  evidence: >-
    DevExchange APIs are secured with OAuth 2.0 (client credentials);
    documented at developer.capitalone.com/documentation/o-auth
- id: fdx
  conforms: true
  evidence: >-
    Capital One is a member of the Financial Data Exchange (FDX) and supports
    consumer-permissioned open-finance data sharing via the FDX API standard
    through aggregators in the US voluntary open-banking context
- id: oidc
  conforms: false
  evidence: no public OpenID Connect discovery document published
- id: fapi
  conforms: unknown
  evidence: >-
    financial-grade API security profile not publicly documented for the
    DevExchange catalog
- id: rfc9457-problem-details
  conforms: unknown
  evidence: no public machine-readable spec to confirm problem+json error format