diff --git a/apps/files_external/appinfo/routes.php b/apps/files_external/appinfo/routes.php
index 996c6aba0dcc4..df0a9922dd7d6 100644
--- a/apps/files_external/appinfo/routes.php
+++ b/apps/files_external/appinfo/routes.php
@@ -62,10 +62,5 @@
 			'url' => '/api/v1/mounts',
 			'verb' => 'GET',
 		],
-		[
-			'name' => 'Api#askNativeAuth',
-			'url' => '/api/v1/auth',
-			'verb' => 'GET',
-		],
 	],
 ];
diff --git a/apps/files_external/src/actions/enterCredentialsAction.ts b/apps/files_external/src/actions/enterCredentialsAction.ts
index 162a359f48866..42055b00e9024 100644
--- a/apps/files_external/src/actions/enterCredentialsAction.ts
+++ b/apps/files_external/src/actions/enterCredentialsAction.ts
@@ -24,29 +24,39 @@ import type { AxiosResponse } from 'axios'
 import type { Node } from '@nextcloud/files'
 import type { StorageConfig } from '../services/externalStorage'
 
-import { generateOcsUrl, generateUrl } from '@nextcloud/router'
-import { showError, showSuccess } from '@nextcloud/dialogs'
+import { generateUrl } from '@nextcloud/router'
+import { showError, showSuccess, spawnDialog } from '@nextcloud/dialogs'
 import { translate as t } from '@nextcloud/l10n'
 import axios from '@nextcloud/axios'
 import LoginSvg from '@mdi/svg/svg/login.svg?raw'
-import Vue from 'vue'
+import Vue, { defineAsyncComponent } from 'vue'
 
 import { FileAction, DefaultType } from '@nextcloud/files'
 import { STORAGE_STATUS, isMissingAuthConfig } from '../utils/credentialsUtils'
 import { isNodeExternalStorage } from '../utils/externalStorageUtils'
 
-type OCSAuthResponse = {
-	ocs: {
-		meta: {
-			status: string
-			statuscode: number
-			message: string
-		},
-		data: {
-			user?: string,
-			password?: string,
-		}
+type CredentialResponse = {
+	login?: string,
+	password?: string,
+}
+
+async function setCredentials(node: Node, login: string, password: string): Promise<null|true> {
+	const configResponse = await axios.put(generateUrl('apps/files_external/userglobalstorages/{id}', node.attributes), {
+		backendOptions: { user: login, password },
+	}) as AxiosResponse<StorageConfig>
+
+	const config = configResponse.data
+	if (config.status !== STORAGE_STATUS.SUCCESS) {
+		showError(t('files_external', 'Unable to update this external storage config. {statusMessage}', {
+			statusMessage: config?.statusMessage || '',
+		}))
+		return null
 	}
+
+	// Success update config attribute
+	showSuccess(t('files_external', 'New configuration successfully saved'))
+	Vue.set(node.attributes, 'config', config)
+	return true
 }
 
 export const action = new FileAction({
@@ -74,30 +84,16 @@ export const action = new FileAction({
 	},
 
 	async exec(node: Node) {
-		// always resolve auth request, we'll process the data afterwards
-		// Using fetch as axios have integrated auth handling and X-Requested-With header
-		const response = await fetch(generateOcsUrl('/apps/files_external/api/v1/auth'), {
-			headers: new Headers({ Accept: 'application/json' }),
-			credentials: 'include',
-		})
-
-		const data = (await response?.json() || {}) as OCSAuthResponse
-		if (data.ocs.data.user && data.ocs.data.password) {
-			const configResponse = await axios.put(generateUrl('apps/files_external/userglobalstorages/{id}', node.attributes), {
-				backendOptions: data.ocs.data,
-			}) as AxiosResponse<StorageConfig>
-
-			const config = configResponse.data
-			if (config.status !== STORAGE_STATUS.SUCCESS) {
-				showError(t('files_external', 'Unable to update this external storage config. {statusMessage}', {
-					statusMessage: config?.statusMessage || '',
-				}))
-				return null
-			}
+		const { login, password } = await new Promise<CredentialResponse>(resolve => spawnDialog(
+			defineAsyncComponent(() => import('../views/CredentialsDialog.vue')),
+			{},
+			(args) => {
+				resolve(args as CredentialResponse)
+			},
+		))
 
-			// Success update config attribute
-			showSuccess(t('files_external', 'New configuration successfully saved'))
-			Vue.set(node.attributes, 'config', config)
+		if (login && password) {
+			return await setCredentials(node, login, password)
 		}
 
 		return null
diff --git a/apps/files_external/src/views/CredentialsDialog.vue b/apps/files_external/src/views/CredentialsDialog.vue
new file mode 100644
index 0000000000000..c9a9539f06164
--- /dev/null
+++ b/apps/files_external/src/views/CredentialsDialog.vue
@@ -0,0 +1,86 @@
+<!--
+  - SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+  - SPDX-License-Identifier: AGPL-3.0-or-later
+-->
+
+<template>
+	<NcDialog :buttons="dialogButtons"
+		class="external-storage-auth"
+		close-on-click-outside
+		data-cy-external-storage-auth
+		is-form
+		:name="t('files_external', 'Storage credentials')"
+		out-transition
+		@submit="$emit('close', {login, password})"
+		@update:open="$emit('close')">
+		<!-- Header -->
+		<NcNoteCard class="external-storage-auth__header"
+			:text="t('files_external', 'To access the storage, you need to provide the authentification informations.')"
+			type="info" />
+
+		<!-- Login -->
+		<NcTextField ref="login"
+			class="external-storage-auth__login"
+			data-cy-external-storage-auth-dialog-login
+			:label="t('files_external', 'Login')"
+			:placeholder="t('files_external', 'Enter the storage login')"
+			minlength="2"
+			name="login"
+			required
+			:value.sync="login" />
+
+		<!-- Password -->
+		<NcPasswordField ref="password"
+			class="external-storage-auth__password"
+			data-cy-external-storage-auth-dialog-password
+			:label="t('files_external', 'Password')"
+			:placeholder="t('files_external', 'Enter the storage password')"
+			name="password"
+			required
+			:value.sync="password" />
+	</NcDialog>
+</template>
+
+<script lang="ts">
+import { defineComponent } from 'vue'
+import { t } from '@nextcloud/l10n'
+
+import NcDialog from '@nextcloud/vue/dist/Components/NcDialog.js'
+import NcNoteCard from '@nextcloud/vue/dist/Components/NcNoteCard.js'
+import NcPasswordField from '@nextcloud/vue/dist/Components/NcPasswordField.js'
+import NcTextField from '@nextcloud/vue/dist/Components/NcTextField.js'
+
+export default defineComponent({
+	name: 'CredentialsDialog',
+
+	components: {
+		NcDialog,
+		NcNoteCard,
+		NcTextField,
+		NcPasswordField,
+	},
+
+	setup() {
+		return {
+			t,
+		}
+	},
+
+	data() {
+		return {
+			login: '',
+			password: '',
+		}
+	},
+
+	computed: {
+		dialogButtons() {
+			return [{
+				label: t('files_external', 'Submit'),
+				type: 'primary',
+				nativeType: 'submit',
+			}]
+		},
+	},
+})
+</script>