diff --git a/frontend/composables/useApi.ts b/frontend/composables/useApi.ts
index 94f57ec..ec296b4 100644
--- a/frontend/composables/useApi.ts
+++ b/frontend/composables/useApi.ts
@@ -21,6 +21,7 @@ export type ApiClient = {
 export type ApiFetchOptions<ResponseType extends 'json' | 'blob'> =
   FetchOptions<ResponseType> & {
     toast?: boolean
+    toastOn401?: boolean
     toastTitle?: string
     toastErrorMessage?: string
     toastSuccessMessage?: string
@@ -102,9 +103,31 @@ export const useApi = (): ApiClient => {
       }
     },
     async onResponseError({ response, error, options }) {
+      const apiOptions = options as ApiFetchOptions<'json'>
       if (response?.status === 401) {
         const requestUrl = typeof options?.url === 'string' ? options.url : ''
-        if (!requestUrl.includes('/login_check') && !requestUrl.includes('/logout')) {
+        const isLoginCheck = requestUrl.includes('/login_check')
+        const isLogout = requestUrl.includes('/logout')
+        const shouldToast401 = apiOptions?.toastOn401 === true && apiOptions?.toast !== false
+
+        if (shouldToast401) {
+          const errorKey = apiOptions?.toastErrorKey
+          const errorMessage =
+            errorKey ? (te(errorKey) ? t(errorKey) : errorKey) : ''
+          const extractedMessage = extractErrorMessage(error, response?._data)
+          const message =
+            apiOptions?.toastErrorMessage ||
+            errorMessage ||
+            extractedMessage ||
+            'Une erreur est survenue.'
+
+          toast.error({
+            title: apiOptions?.toastTitle ?? 'Erreur',
+            message
+          })
+        }
+
+        if (!isLoginCheck && !isLogout) {
           if (!isHandlingUnauthorized) {
             isHandlingUnauthorized = true
             auth.clearSession()
@@ -115,10 +138,10 @@ export const useApi = (): ApiClient => {
             isHandlingUnauthorized = false
           }
         }
+
         return
       }
 
-      const apiOptions = options as ApiFetchOptions<'json'>
       if (apiOptions?.toast === false) {
         return
       }
diff --git a/frontend/services/auth.ts b/frontend/services/auth.ts
index 7076822..bef14f5 100644
--- a/frontend/services/auth.ts
+++ b/frontend/services/auth.ts
@@ -8,6 +8,7 @@ export const getCurrentUser = () => {
 export const login = (username: string, password: string) => {
   const api = useApi()
   return api.post('/login_check', { username, password }, {
+    toastOn401: true,
     toastErrorKey: 'errors.auth.login'
   })
 }