Abstract This is a continuation of the , Building a Spring AI Assistant with MCP Servers: A Step-by-Step Tutorial, and describes how one may address a serious concern when thinking of going from prototype to production — security. The Problem The MCP specification recommends that MCP servers using HTTP as their transport layer be secured with OAuth 2.0 access tokens. In practice, plenty of teams don't have the surrounding infrastructure — an authorization server, token introspection, and oper...

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