diff --git a/composables/useApi.ts b/composables/useApi.ts
index 05d2b6a..ce66a77 100644
--- a/composables/useApi.ts
+++ b/composables/useApi.ts
@@ -1,36 +1,36 @@
-import { useRuntimeConfig } from "#imports";
-
-export const useApi = async <T>(
-  path: string,
-  options: {
-    method?: "get" | "post" | "put" | "delete";
-    body?: any;
-    query?: Record<string, any>;
-    headers?: HeadersInit;
-    credentials?: RequestCredentials;
-  } = {}
-): Promise<T> => {
-  const config = useRuntimeConfig();
-  const method = options.method ? options.method.toUpperCase() : "GET";
-
-  try {
-    const response = await $fetch<T>(
-      `${config.public.apiBase}${config.public.contextPath}${path}`,
-      {
-        method: method as any,
-        body: options.body,
-        query: options.query,
-        credentials: options.credentials || "include", // 쿠키 자동 전송
-        headers: {
-          "Content-Type": "application/json",
-          ...options.headers,
-        },
-      }
-    );
-
-    return response;
-  } catch (error) {
-    console.error("API 호출 실패:", error);
-    throw error;
-  }
+/**
+ * API 호출을 위한 편의 함수
+ *
+ * @template T - 응답 데이터의 타입
+ * @param path - API 엔드포인트 경로 (예: '/users', '/users/1')
+ * @param opts - 요청 옵션 (method, body, headers 등)
+ * @returns Promise<T> - API 응답 데이터
+ *
+ * @example
+ * // GET 요청
+ * const users = await useApi<User[]>('/users')
+ *
+ * // POST 요청
+ * const newUser = await useApi<User>('/users', {
+ *   method: 'POST',
+ *   body: { name: 'John', email: 'john@example.com' }
+ * })
+ *
+ * // PUT 요청
+ * const updatedUser = await useApi<User>('/users/1', {
+ *   method: 'PUT',
+ *   body: { name: 'John Updated' }
+ * })
+ *
+ * // DELETE 요청
+ * await useApi('/users/1', { method: 'DELETE' })
+ *
+ * // FormData 업로드
+ * const formData = new FormData()
+ * formData.append('file', file)
+ * await useApi('/upload', { method: 'POST', body: formData })
+ */
+export const useApi = <T>(path: string, opts?: any): Promise<T> => {
+  const { $api } = useNuxtApp();
+  return ($api as any)(path, opts);
 };
diff --git a/plugins/api.ts b/plugins/api.ts
new file mode 100644
index 0000000..79093ca
--- /dev/null
+++ b/plugins/api.ts
@@ -0,0 +1,44 @@
+export default defineNuxtPlugin(() => {
+  const config = useRuntimeConfig();
+  const baseURL = `${config.public.apiBase}${config.public.contextPath}`;
+
+  const api = $fetch.create({
+    baseURL,
+    credentials: "include",
+    onRequest({ request, options }) {
+      // 1) GET/HEAD가 아니면 body만 넣기 (GET에 body 금지)
+      const method = (options.method ?? "GET").toUpperCase();
+      if (method === "GET" || method === "HEAD") {
+        delete (options as any).body;
+      }
+
+      // 2) FormData면 Content-Type 자동 지정 금지
+      const isFormData =
+        typeof FormData !== "undefined" && options.body instanceof FormData;
+      options.headers = {
+        ...(isFormData ? {} : { "Content-Type": "application/json" }),
+        ...(options.headers || {}),
+      };
+
+      // 3) SSR 쿠키 포워딩
+      if (import.meta.server) {
+        const cookie = useRequestHeaders(["cookie"])?.cookie;
+        // request가 절대 URL이면 호스트 비교
+        const reqUrl = typeof request === "string" ? request : String(request);
+        const isBackendApi =
+          !reqUrl.startsWith("http") || // 상대경로면 내 API
+          reqUrl.startsWith(baseURL); // 혹은 baseURL과 동일
+
+        if (cookie && isBackendApi) {
+          options.headers = { ...(options.headers || {}), cookie } as any;
+        }
+      }
+    },
+    onResponseError({ response }) {
+      // 공통 로깅
+      console.error("[API ERROR]", response.status, response._data);
+    },
+  });
+
+  return { provide: { api } };
+});