Building a production MCP server for SAP and Workday raises auth and scaling questions

Emergency_Island_703 · reddit · 2026-07-28

The poster is trying to build a production MCP service for HR systems like SAP and Workday and is asking how real deployments handle authentication and scaling.

They want to know how to integrate OAuth-based APIs with MCP, how to keep user data isolated when requests are routed across pods, and what production architectures teams have used. They contrast this with a simpler Jira setup that used a per-user token plus a shared screen key, and say HR systems feel much harder to design securely.

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