diff --git a/src/server/httpServer.ts b/src/server/httpServer.ts
index aa8e972..1eafb73 100644
--- a/src/server/httpServer.ts
+++ b/src/server/httpServer.ts
@@ -148,9 +148,15 @@ export class HttpServer {
           return;
         }
 
-        logger.info(`Starting auth detection tests for: ${meetingUrl}`);
+        const hasEmail = !!botAccountEmail;
+        const hasPassword = !!botAccountPassword;
+        logger.info(`Starting auth detection tests for: ${meetingUrl} (credentials: email=${hasEmail}, password=${hasPassword})`);
+
         const results = await runAuthTests(meetingUrl, botAccountEmail, botAccountPassword);
 
+        // Attach credential debug info so UI can show it
+        (results as any).credentialsReceived = { hasEmail, hasPassword };
+
         res.json(results);
       } catch (error) {
         logger.error('Error running auth tests:', error);