This document introduces Service Providers to ZenKey Trust Services. ZenKey Trust Services offers fraud prevention services to ZenKey's Service Providers; protecting users and application resources. ZenKey Trust Services are a collection of APIs and Event Alerts that help Service Providers obtain important notifications from participating ZenKey wireless carriers. These notifications provide Service Providers with actionable information that helps protect their users and prevent fraud.

ZenKey is a joint venture of three major US Participating ZenKey Wireless Carriers. The platform leverages technologies in a user's mobile phone and mobile network, and packages multiple factors of authentication into a streamlined experience for app and website providers. It takes advantage of the unique capabilities and insights of the Participating ZenKey Wireless Carriers, and applies an easy and secure way to register, login, and perform other types of authorizations within apps and services. The result for Service Providers is a better user experience for users. ZenKey makes integration easy by following the OpenID Connect (OIDC) authentication protocol.