diff --git a/deps/scrapbox.ts b/deps/scrapbox.ts
index 2123c87..7abfa7f 100644
--- a/deps/scrapbox.ts
+++ b/deps/scrapbox.ts
@@ -1,7 +1,9 @@
 export type {
   ErrorLike,
   ExportedData,
+  GuestUser,
   ImportedData,
+  MemberUser,
   NotFoundError,
   NotLoggedInError,
   NotMemberError,
diff --git a/rest/profile.ts b/rest/profile.ts
new file mode 100644
index 0000000..60b95fe
--- /dev/null
+++ b/rest/profile.ts
@@ -0,0 +1,33 @@
+import type { GuestUser, MemberUser } from "../deps/scrapbox.ts";
+import { cookie, makeCustomError } from "./utils.ts";
+
+export interface ProfileInit {
+  /** connect.sid */ sid: string;
+}
+/** get user profile
+ *
+ * @param init connect.sid etc.
+ */
+export async function getProfile(
+  init?: ProfileInit,
+): Promise<MemberUser | GuestUser> {
+  const path = "https://scrapbox.io/api/users/me";
+  const res = await fetch(
+    path,
+    init?.sid
+      ? {
+        headers: {
+          Cookie: cookie(init.sid),
+        },
+      }
+      : undefined,
+  );
+
+  if (!res.ok) {
+    throw makeCustomError(
+      "UnexpectedError",
+      `Unexpected error has occuerd when fetching "${path}"`,
+    );
+  }
+  return (await res.json()) as MemberUser | GuestUser;
+}