diff --git a/src/api/acts/roomContent.ts b/src/api/acts/roomContent.ts
index 1f31729..f9e14b9 100644
--- a/src/api/acts/roomContent.ts
+++ b/src/api/acts/roomContent.ts
@@ -1,4 +1,4 @@
-import { and, eq, remove, select, update } from "dblang";
+import { and, eq, insert, remove, select, update } from "dblang";
 import { checkSelfTag } from "../../server/outbagURL.js";
 import { Act, Client, STATE } from "../user.js";
 import { db, listCategories, listProducts } from "../../sys/db.js";
@@ -41,6 +41,46 @@ export const getCategories: Act = {
     }
 };
 
+export const addCategories: Act = {
+    state: STATE.client | STATE.remote,
+    right: 0,
+    data: {
+        room: "string",
+        server: "string",
+        title: "string-256",
+        color: "string-32",
+        weight: "number"
+    },
+    func: async (client: Client, data: any, aws: (code: string, data: any) => void) => {
+        if (!checkSelfTag(data.server)) {
+            if (client.state != STATE.client) return void aws("error", "right");
+            let resp = await client.pass(data.server, "getCategories", data);
+            aws(resp.state, resp.data);
+            return;
+        }
+        let roomID = await client.isInRoom(data.room);
+        if (roomID == -1) {
+            aws("error", "existence");
+            return;
+        }
+        let req = await insert(
+            listCategories.roomID,
+            listCategories.title,
+            listCategories.weight,
+            listCategories.color
+        ).add(
+            roomID,
+            data.title,
+            data.weight,
+            data.color
+        ).query(db);
+        if (req.affectedRows > 0) aws("ok", {
+            catID: req.insertId
+        });
+        else aws("error", "existence");
+    }
+};
+
 export const changeCategory: Act = {
     state: STATE.client | STATE.remote,
     right: 0,