diff --git a/src/api/routes/users/@me/mfa/totp/disable.ts b/src/api/routes/users/@me/mfa/totp/disable.ts
new file mode 100644
index 00000000..2d385fda
--- /dev/null
+++ b/src/api/routes/users/@me/mfa/totp/disable.ts
@@ -0,0 +1,45 @@
+import { Router, Request, Response } from "express";
+import { route } from "@fosscord/api";
+import { verifyToken } from 'node-2fa';
+import { HTTPError } from "lambert-server";
+import { User, generateToken, BackupCode } from "@fosscord/util";
+
+const router = Router();
+
+export interface TotpDisableSchema {
+ code: string;
+}
+
+router.post("/", route({ body: "TotpDisableSchema" }), async (req: Request, res: Response) => {
+ const body = req.body as TotpDisableSchema;
+
+ const user = await User.findOneOrFail({ where: { id: req.user_id }, select: ["totp_secret"] });
+
+ const backup = await BackupCode.findOne({ where: { code: body.code } });
+ if (!backup) {
+ const ret = verifyToken(user.totp_secret!, body.code);
+ if (!ret || ret.delta != 0)
+ throw new HTTPError(req.t("auth:login.INVALID_TOTP_CODE"), 60008);
+ }
+
+ await User.update(
+ { id: req.user_id },
+ {
+ mfa_enabled: false,
+ totp_secret: "",
+ },
+ );
+
+ await BackupCode.update(
+ { user: { id: req.user_id } },
+ {
+ expired: true,
+ }
+ );
+
+ return res.json({
+ token: await generateToken(user.id),
+ });
+});
+
+export default router;
\ No newline at end of file
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