diff --git a/packages/frontend/src/scripts/api.ts b/packages/frontend/src/scripts/api.ts
index 55431679dc..0f54f779a6 100644
--- a/packages/frontend/src/scripts/api.ts
+++ b/packages/frontend/src/scripts/api.ts
@@ -56,7 +56,12 @@ export function api<E extends keyof Misskey.Endpoints, P extends Misskey.Endpoin
 	return promise;
 }
 
-export function apiExternal<E extends keyof Misskey.Endpoints, P extends Misskey.Endpoints[E]['req']>(hostUrl: string, endpoint: E, data: P = {} as any, token?: string | null | undefined, signal?: AbortSignal): Promise<Misskey.Endpoints[E]['res']> {
+export function apiExternal<E extends keyof Misskey.Endpoints, P extends Misskey.Endpoints[E]['req']>(
+	hostUrl: string,
+	endpoint: E, data: P = {} as any,
+	token?: string | null | undefined,
+	signal?: AbortSignal,
+): Promise<Misskey.api.SwitchCaseResponseType<E, P>> {
 	if (!/^https?:\/\//.test(hostUrl)) throw new Error('invalid host name');
 	if (endpoint.includes('://')) throw new Error('invalid endpoint');
 	pendingApiRequestsCount.value++;
@@ -100,7 +105,10 @@ export function apiExternal<E extends keyof Misskey.Endpoints, P extends Misskey
 }
 
 // Implements Misskey.api.ApiClient.request
-export function apiGet <E extends keyof Misskey.Endpoints, P extends Misskey.Endpoints[E]['req']>(endpoint: E, data: P = {} as any): Promise<Misskey.Endpoints[E]['res']> {
+export function apiGet<E extends keyof Misskey.Endpoints, P extends Misskey.Endpoints[E]['req']>(
+	endpoint: E,
+	data: P = {} as any,
+): Promise<Misskey.api.SwitchCaseResponseType<E, P>> {
 	pendingApiRequestsCount.value++;
 
 	const onFinally = () => {