visa Payment Account Validation Documentation → GitHub OpenAPI Resources ⚙️ OpenAPI openapi/payment-account-validation.yml 🔗 GettingStarted https://developer.visa.com/capabilities/pav/docs 🔗 Authentication https://developer.visa.com/capabilities/pav/docs-authentication 🔗 Errors https://developer.visa.com/pages/visa-developer-error-codes