diff --git a/apps/web/src/services/api/client.ts b/apps/web/src/services/api/client.ts
index 77119063e..50795d399 100644
--- a/apps/web/src/services/api/client.ts
+++ b/apps/web/src/services/api/client.ts
@@ -1421,15 +1421,17 @@ apiClient.interceptors.response.use(
             return apiClient(originalRequest);
           })
           .catch((err) => {
-            const errStatus = (err as { response?: { status?: number } })?.response?.status;
+            const errAny = err as { response?: { status?: number }; code?: number };
+            const errStatus = errAny?.response?.status ?? errAny?.code;
             const errUrl = originalRequest?.url ?? '';
-            const isWebhooks5xx = errStatus && errStatus >= 500 && errUrl.includes('/webhooks');
-            const logFn = isWebhooks5xx ? logger.debug : logger.error;
-            logFn('[API] Queued request failed after refresh', {
-              request_id: requestId,
-              url: originalRequest?.url,
-              error: err,
-            });
+            const isWebhooks5xx = errStatus != null && errStatus >= 500 && errUrl.includes('/webhooks');
+            if (!isWebhooks5xx) {
+              logger.error('[API] Queued request failed after refresh', {
+                request_id: requestId,
+                url: originalRequest?.url,
+                error: err,
+              });
+            }
             return Promise.reject(err);
           });
       }
@@ -1951,21 +1953,22 @@ apiClient.interceptors.response.use(
     }
 
     // FIX #18, #22: Utiliser logger structuré avec request_id pour corrélation
-    // 5xx sur /webhooks = erreur backend, éviter le bruit console (DEBUG)
+    // 5xx sur /webhooks = erreur backend, ne pas logger (éviter bruit console)
     const httpStatus = error.response?.status;
     const url = originalRequest?.url ?? '';
     const isWebhooks5xx = httpStatus && httpStatus >= 500 && url.includes('/webhooks');
-    const logFn = isWebhooks5xx ? logger.debug : logger.error;
-    logFn(`[API Error] ${apiError.message}`, {
-      request_id: apiError.request_id || requestId,
-      code: apiError.code,
-      message: apiError.message,
-      timestamp: apiError.timestamp,
-      details: apiError.details,
-      context: apiError.context,
-      url: originalRequest?.url,
-      method: originalRequest?.method,
-    });
+    if (!isWebhooks5xx) {
+      logger.error(`[API Error] ${apiError.message}`, {
+        request_id: apiError.request_id || requestId,
+        code: apiError.code,
+        message: apiError.message,
+        timestamp: apiError.timestamp,
+        details: apiError.details,
+        context: apiError.context,
+        url: originalRequest?.url,
+        method: originalRequest?.method,
+      });
+    }
 
     return Promise.reject(apiError);
   },
diff --git a/apps/web/src/services/csrf.ts b/apps/web/src/services/csrf.ts
index 9185f19d7..51362c370 100644
--- a/apps/web/src/services/csrf.ts
+++ b/apps/web/src/services/csrf.ts
@@ -31,9 +31,7 @@ class CSRFService {
         const msg = error instanceof Error ? error.message : String(error);
         const isWrongServer = msg.includes('HTML page instead of JSON');
         if (isWrongServer) {
-          logger.debug('CSRF token unavailable (backend may not be running)', {
-            hint: 'Ensure the Veza backend is running (see VITE_BACKEND_PORT in .env.local)',
-          });
+          // No log: backend not running or wrong server is expected in dev
         } else {
           logger.error('Failed to fetch CSRF token', { message: msg });
         }
diff --git a/apps/web/src/services/webhookService.ts b/apps/web/src/services/webhookService.ts
index 2322139da..f8d8bc3e9 100644
--- a/apps/web/src/services/webhookService.ts
+++ b/apps/web/src/services/webhookService.ts
@@ -27,11 +27,10 @@ export const webhookService = {
             const err = error as { response?: { status?: number }; code?: number };
             const status = err?.response?.status ?? err?.code;
             const is5xx = typeof status === 'number' && status >= 500;
-            if (is5xx) {
-                logger.debug('[Webhooks] Backend error listing webhooks (5xx)', { status });
-            } else {
+            if (!is5xx) {
                 logger.error('[Webhooks] Failed to list webhooks', { error });
             }
+            // 5xx: no log (backend error, avoid console noise)
             return [];
         }
     },