--- title: "Overview" slug: "xa-server-passthrough-proxauth-overview" updated: 2026-06-17T14:22:12Z published: 2026-06-17T14:22:12Z canonical: "healthcare.rapididentity.com/xa-server-passthrough-proxauth-overview" --- > ## Documentation Index > Fetch the complete documentation index at: https://healthcare.rapididentity.com/llms.txt > Use this file to discover all available pages before exploring further. # Overview The ProxAuth Server is the server-side component that allows HealthCast solutions to integrate with proximity cards and perform remote authentication for non-domain joined workstations. The ProxAuth Server can be paired with HealthCast client softwares, such as QwickACCESS or ExactAccess, to facilitate "badge tap" functionality.