diff --git a/logtest_api.go b/logtest_api.go
new file mode 100644
index 0000000..e50c7e7
--- /dev/null
+++ b/logtest_api.go
@@ -0,0 +1,33 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+
+	slog "github.com/sinmetal/slog/v2"
+)
+
+func HandleLogTestAPI(w http.ResponseWriter, r *http.Request) {
+	ctx := slog.WithValue(r.Context())
+	defer slog.Flush(ctx)
+
+	for k, v := range r.Header {
+		slog.Info(ctx, slog.KV{k, v})
+	}
+
+	lc, ok := slog.Value(ctx)
+	if !ok {
+		slog.Info(ctx, slog.KV{"MSG", "slog.Value is ng"})
+	}
+	j, err := json.Marshal(lc)
+	if err != nil {
+		slog.Info(ctx, slog.KV{"MSG", fmt.Sprintf("failed json.Marshal", err)})
+	}
+
+	w.Header().Set("Content-type", "application/json;charset=utf-8")
+	_, err = w.Write(j)
+	if err != nil {
+		slog.Info(ctx, slog.KV{"MSG", fmt.Sprintf("failed json.Marshal", err)})
+	}
+}
diff --git a/main.go b/main.go
index c57b6d7..a0121ab 100644
--- a/main.go
+++ b/main.go
@@ -24,6 +24,7 @@ func main() {
 	http.HandleFunc("/api/v1/datastore-export-job-check/", HandleDatastoreExportJobCheckAPI)
 	http.HandleFunc("/api/v1/datastore-export/", HandleDatastoreExportAPI)
 	http.HandleFunc("/api/v1/storage-change-notify/", HandleStorageChangeNotifyAPI)
+	http.HandleFunc("/api/v1/logtest/", HandleLogTestAPI)
 	http.HandleFunc("/", HandleHealthCheck)
 
 	port := os.Getenv("PORT")