fix(http): create a server instance per request in stateless HTTP mode - #121
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rbuchmayer-pplx merged 1 commit intoJul 27, 2026
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The stateless streamable HTTP path reused a single McpServer across requests, but a Protocol instance only supports one transport. The second POST in any session failed with "Already connected to a transport" (HTTP 500), which breaks initialize -> tools/list for every client. Follow the SDK's stateless pattern: build a fresh server + transport pair per request and close both when the response closes.
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Stateless HTTP mode reuses one McpServer across requests, but a Protocol instance only supports one transport, so the second POST in any session 500s with "Already connected to a transport". MCP init is itself a POST, so every HTTP client breaks on its first real request (
npm run start:httpand Docker HTTP mode)./healthtestFixes #117.