diff --git a/docs/api-change.md b/docs/api-change.md
new file mode 100644
index 0000000000..4986481bdb
--- /dev/null
+++ b/docs/api-change.md
@@ -0,0 +1,7 @@
+# Changes to the Firefish API
+
+## v1.0.5 (unreleased)
+
+### dev11
+
+- `notes/translate` now requires credentials.
diff --git a/packages/backend/src/server/api/endpoints/notes/translate.ts b/packages/backend/src/server/api/endpoints/notes/translate.ts
index 414e761c1c..1e90fb617e 100644
--- a/packages/backend/src/server/api/endpoints/notes/translate.ts
+++ b/packages/backend/src/server/api/endpoints/notes/translate.ts
@@ -4,7 +4,6 @@ import config from "@/config/index.js";
 import { Converter } from "opencc-js";
 import { getAgentByUrl } from "@/misc/fetch.js";
 import { fetchMeta } from "@/misc/fetch-meta.js";
-import { Notes } from "@/models/index.js";
 import { ApiError } from "../../error.js";
 import { getNote } from "../../common/getters.js";
 import define from "../../define.js";
@@ -12,7 +11,7 @@ import define from "../../define.js";
 export const meta = {
 	tags: ["notes"],
 
-	requireCredential: false,
+	requireCredential: true,
 	requireCredentialPrivateMode: true,
 
 	res: {