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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Support McpTransportContext in HttpServletSseServerTransportProvider","articleBody":"**Expected Behavior**\n\nhttps://github.com/modelcontextprotocol/java-sdk/pull/420 introduced `McpTransportContext`.\n\n`McpTransportContext` should be supported in `HttpServletSseServerTransportProvider` to enable those who are still on that transport to leverage `McpTransportContext` to set attributes that Tools, etc. have access to. This is crucial for implementing Authentication \u0026 Authorization at the Tool level.\n\n**Current Behavior**\n\n`McpTransportContext` is absent from `HttpServletSseServerTransportProvider`\n\n**Context**\n\nHow has this issue affected you?\n\nWe're not able to switch to `HttpServletStreamableServerTransportProvider` yet, but wish to use `McpTransportContext` instead of our custom built similar capability.\n\nWhat are you trying to accomplish?\n\nAuthn/z at Tool level.\n\nWhat other alternatives have you considered?\n\nContinuing to use our internal fork similar implementation.\n\nAre you aware of any workarounds?\n\nNo\n","author":{"url":"https://github.com/stantonk","@type":"Person","name":"stantonk"},"datePublished":"2025-08-10T02:28:50.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/476/java-sdk/issues/476"}