diff --git a/packages/misskey-js/etc/misskey-js.api.md b/packages/misskey-js/etc/misskey-js.api.md
index cc397e2270..246c1e40d5 100644
--- a/packages/misskey-js/etc/misskey-js.api.md
+++ b/packages/misskey-js/etc/misskey-js.api.md
@@ -813,6 +813,54 @@ export type Channels = {
             claimTimeIsUp: null | Record<string, never>;
         };
     };
+    chatUser: {
+        params: {
+            otherId: string;
+        };
+        events: {
+            message: (payload: ChatMessageLite) => void;
+            deleted: (payload: ChatMessageLite['id']) => void;
+            react: (payload: {
+                reaction: string;
+                user?: UserLite;
+                messageId: ChatMessageLite['id'];
+            }) => void;
+            unreact: (payload: {
+                reaction: string;
+                user?: UserLite;
+                messageId: ChatMessageLite['id'];
+            }) => void;
+        };
+        receives: {
+            read: {
+                id: ChatMessageLite['id'];
+            };
+        };
+    };
+    chatRoom: {
+        params: {
+            roomId: string;
+        };
+        events: {
+            message: (payload: ChatMessageLite) => void;
+            deleted: (payload: ChatMessageLite['id']) => void;
+            react: (payload: {
+                reaction: string;
+                user?: UserLite;
+                messageId: ChatMessageLite['id'];
+            }) => void;
+            unreact: (payload: {
+                reaction: string;
+                user?: UserLite;
+                messageId: ChatMessageLite['id'];
+            }) => void;
+        };
+        receives: {
+            read: {
+                id: ChatMessageLite['id'];
+            };
+        };
+    };
 };
 
 // @public (undocumented)
@@ -3655,8 +3703,8 @@ type V2AdminEmojiListResponse = operations['v2___admin___emoji___list']['respons
 //
 // src/entities.ts:50:2 - (ae-forgotten-export) The symbol "ModerationLogPayloads" needs to be exported by the entry point index.d.ts
 // src/streaming.ts:57:3 - (ae-forgotten-export) The symbol "ReconnectingWebSocket" needs to be exported by the entry point index.d.ts
-// src/streaming.types.ts:217:4 - (ae-forgotten-export) The symbol "ReversiUpdateKey" needs to be exported by the entry point index.d.ts
-// src/streaming.types.ts:227:4 - (ae-forgotten-export) The symbol "ReversiUpdateSettings" needs to be exported by the entry point index.d.ts
+// src/streaming.types.ts:218:4 - (ae-forgotten-export) The symbol "ReversiUpdateKey" needs to be exported by the entry point index.d.ts
+// src/streaming.types.ts:228:4 - (ae-forgotten-export) The symbol "ReversiUpdateSettings" needs to be exported by the entry point index.d.ts
 
 // (No @packageDocumentation comment for this package)
 
diff --git a/packages/misskey-js/src/streaming.types.ts b/packages/misskey-js/src/streaming.types.ts
index 8e5438eeb6..10204fb2c9 100644
--- a/packages/misskey-js/src/streaming.types.ts
+++ b/packages/misskey-js/src/streaming.types.ts
@@ -1,6 +1,7 @@
 import {
 	Antenna,
 	ChatMessage,
+	ChatMessageLite,
 	DriveFile,
 	DriveFolder,
 	Note,
@@ -227,7 +228,55 @@ export type Channels = {
 			updateSettings: ReversiUpdateSettings<ReversiUpdateKey>;
 			claimTimeIsUp: null | Record<string, never>;
 		}
-	}
+	};
+	chatUser: {
+		params: {
+			otherId: string;
+		};
+		events: {
+			message: (payload: ChatMessageLite) => void;
+			deleted: (payload: ChatMessageLite['id']) => void;
+			react: (payload: {
+				reaction: string;
+				user?: UserLite;
+				messageId: ChatMessageLite['id'];
+			}) => void;
+			unreact: (payload: {
+				reaction: string;
+				user?: UserLite;
+				messageId: ChatMessageLite['id'];
+			}) => void;
+		};
+		receives: {
+			read: {
+				id: ChatMessageLite['id'];
+			};
+		};
+	};
+	chatRoom: {
+		params: {
+			roomId: string;
+		};
+		events: {
+			message: (payload: ChatMessageLite) => void;
+			deleted: (payload: ChatMessageLite['id']) => void;
+			react: (payload: {
+				reaction: string;
+				user?: UserLite;
+				messageId: ChatMessageLite['id'];
+			}) => void;
+			unreact: (payload: {
+				reaction: string;
+				user?: UserLite;
+				messageId: ChatMessageLite['id'];
+			}) => void;
+		};
+		receives: {
+			read: {
+				id: ChatMessageLite['id'];
+			};
+		};
+	};
 };
 
 export type NoteUpdatedEvent = { id: Note['id'] } & ({