diff --git a/deps/scrapbox.ts b/deps/scrapbox.ts
index 3bea20e..8c2dd34 100644
--- a/deps/scrapbox.ts
+++ b/deps/scrapbox.ts
@@ -7,6 +7,7 @@ export type {
   InvalidURLError,
   MemberProject,
   MemberUser,
+  NoQueryError,
   NotFoundError,
   NotLoggedInError,
   NotMemberError,
@@ -14,11 +15,13 @@ export type {
   NotPrivilegeError,
   Page,
   PageList,
+  ProjectSearchResult,
   Scrapbox,
   SearchedTitle,
+  SearchResult,
   SessionError,
   TweetInfo,
-} from "https://raw.githubusercontent.com/scrapbox-jp/types/0.1.2/mod.ts";
-import type { Page } from "https://raw.githubusercontent.com/scrapbox-jp/types/0.1.2/mod.ts";
+} from "https://raw.githubusercontent.com/scrapbox-jp/types/0.1.4/mod.ts";
+import type { Page } from "https://raw.githubusercontent.com/scrapbox-jp/types/0.1.4/mod.ts";
 export * from "https://esm.sh/@progfay/scrapbox-parser@7.2.0";
 export type Line = Page["lines"][0];
diff --git a/rest/mod.ts b/rest/mod.ts
index ca2d085..c78102f 100644
--- a/rest/mod.ts
+++ b/rest/mod.ts
@@ -4,6 +4,7 @@ export * from "./profile.ts";
 export * from "./replaceLinks.ts";
 export * from "./page-data.ts";
 export * from "./link.ts";
+export * from "./search.ts";
 export * from "./getWebPageTitle.ts";
 export * from "./getTweetInfo.ts";
 export * from "./auth.ts";
diff --git a/rest/search.ts b/rest/search.ts
new file mode 100644
index 0000000..7c5b055
--- /dev/null
+++ b/rest/search.ts
@@ -0,0 +1,179 @@
+import type {
+  NoQueryError,
+  NotFoundError,
+  NotLoggedInError,
+  NotMemberError,
+  ProjectSearchResult,
+  SearchResult,
+} from "../deps/scrapbox.ts";
+import { cookie } from "./auth.ts";
+import { UnexpectedResponseError } from "./error.ts";
+import { tryToErrorLike } from "../is.ts";
+import { BaseOptions, Result, setDefaults } from "./util.ts";
+
+/** search a project for pages
+ *
+ * @param query 検索語句
+ * @param project 検索範囲とするprojectの名前
+ * @param init connect.sid etc.
+ */
+export const searchForPages = async (
+  query: string,
+  project: string,
+  init?: BaseOptions,
+): Promise<
+  Result<
+    SearchResult,
+    NotFoundError | NotMemberError | NotLoggedInError | NoQueryError
+  >
+> => {
+  const { sid, hostName, fetch } = setDefaults(init ?? {});
+
+  const path = `https://${hostName}/api/pages/${project}/search/query?q=${
+    encodeURIComponent(query)
+  }`;
+  const res = await fetch(
+    path,
+    sid ? { headers: { Cookie: cookie(sid) } } : undefined,
+  );
+
+  if (!res.ok) {
+    if (res.status === 422) {
+      return {
+        ok: false,
+        value: {
+          name: "NoQueryError",
+          message: (await res.json()).message,
+        },
+      };
+    }
+    const text = await res.json();
+    const value = tryToErrorLike(text);
+    if (!value) {
+      throw new UnexpectedResponseError({
+        path: new URL(path),
+        ...res,
+        body: await res.text(),
+      });
+    }
+    return {
+      ok: false,
+      value: value as NotFoundError | NotMemberError | NotLoggedInError,
+    };
+  }
+
+  const value = (await res.json()) as SearchResult;
+  return { ok: true, value };
+};
+
+/** search for joined projects
+ *
+ * @param query 検索語句
+ * @param init connect.sid etc.
+ */
+export const searchForJoinedProjects = async (
+  query: string,
+  init?: BaseOptions,
+): Promise<
+  Result<
+    ProjectSearchResult,
+    NotLoggedInError | NoQueryError
+  >
+> => {
+  const { sid, hostName, fetch } = setDefaults(init ?? {});
+
+  const path = `https://${hostName}/api/projects/search/query?q=${
+    encodeURIComponent(query)
+  }`;
+  const res = await fetch(
+    path,
+    sid ? { headers: { Cookie: cookie(sid) } } : undefined,
+  );
+
+  if (!res.ok) {
+    if (res.status === 422) {
+      return {
+        ok: false,
+        value: {
+          name: "NoQueryError",
+          message: (await res.json()).message,
+        },
+      };
+    }
+    const text = await res.json();
+    const value = tryToErrorLike(text);
+    if (!value) {
+      throw new UnexpectedResponseError({
+        path: new URL(path),
+        ...res,
+        body: await res.text(),
+      });
+    }
+    return { ok: false, value: value as NotLoggedInError };
+  }
+
+  const value = (await res.json()) as ProjectSearchResult;
+  return { ok: true, value };
+};
+
+/** search for watch list
+ *
+ * watch listと銘打っているが、実際には参加していないpublic projectならどれでも検索できる
+ *
+ * 参加しているprojectのidは指定しても無視されるだけ
+ *
+ * @param query 検索語句
+ * @param projectIds 検索候補のprojectのidのリスト
+ * @param init connect.sid etc.
+ */
+export const searchForWatchList = async (
+  query: string,
+  projectIds: string[],
+  init?: BaseOptions,
+): Promise<
+  Result<
+    ProjectSearchResult,
+    NotLoggedInError | NoQueryError
+  >
+> => {
+  const { sid, hostName, fetch } = setDefaults(init ?? {});
+
+  const params = new URLSearchParams();
+  params.append("q", encodeURIComponent(query));
+  for (const projectId of projectIds) {
+    params.append("ids", projectId);
+  }
+
+  const path =
+    `https://${hostName}/api/projects/search/watch-list?${params.toString()}`;
+  const res = await fetch(
+    path,
+    sid ? { headers: { Cookie: cookie(sid) } } : undefined,
+  );
+
+  if (!res.ok) {
+    if (res.status === 422) {
+      return {
+        ok: false,
+        value: {
+          // 本当はproject idが不正なときも422 errorになる
+          name: "NoQueryError",
+          message: (await res.json()).message,
+        },
+      };
+    }
+    const text = await res.json();
+    const value = tryToErrorLike(text);
+    if (!value) {
+      throw new UnexpectedResponseError({
+        path: new URL(path),
+        ...res,
+        body: await res.text(),
+      });
+    }
+    return { ok: false, value: value as NotLoggedInError };
+  }
+
+  const value = (await res.json()) as ProjectSearchResult;
+  return { ok: true, value };
+};