mcpTransport := mcp_http.NewHTTPTransport("/mcp").
    WithAddr(":4343").
    WithMiddleware(func(next http.Handler) http.Handler {
        return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
            if r.Header.Get("Authorization") == "" {
                w.WriteHeader(http.StatusUnauthorized)
                _, _ = w.Write([]byte("Authorization header required"))
                return
            }
            next.ServeHTTP(w, r)
        })
    })