diff --git a/.changeset/migrate-chat-getStarredMessages.md b/.changeset/migrate-chat-getStarredMessages.md
new file mode 100644
index 0000000000000..177f98cd7065c
--- /dev/null
+++ b/.changeset/migrate-chat-getStarredMessages.md
@@ -0,0 +1,6 @@
+---
+"@rocket.chat/meteor": minor
+"@rocket.chat/rest-typings": minor
+---
+
+Add OpenAPI support for the chat.getStarredMessages API endpoint by migrating to a modern chained route definition syntax and utilizing AJV schemas for query and response validation.
diff --git a/apps/meteor/app/api/server/v1/chat.ts b/apps/meteor/app/api/server/v1/chat.ts
index a00d57e46ae72..711b95838fa38 100644
--- a/apps/meteor/app/api/server/v1/chat.ts
+++ b/apps/meteor/app/api/server/v1/chat.ts
@@ -22,7 +22,6 @@ import {
 	isChatSyncThreadsListProps,
 	isChatGetThreadMessagesProps,
 	isChatSyncThreadMessagesProps,
-	isChatGetStarredMessagesProps,
 	isChatGetDiscussionsProps,
 	validateBadRequestErrorResponse,
 	validateUnauthorizedErrorResponse,
@@ -275,6 +274,39 @@ const isChatPinMessageProps = ajv.compile<ChatPinMessage>(ChatPinMessageSchema);
 
 const isChatUnpinMessageProps = ajv.compile<ChatUnpinMessage>(ChatUnpinMessageSchema);
 
+type GetStarredMessages = {
+	roomId: string;
+	count?: number;
+	offset?: number;
+	sort?: string;
+};
+
+const GetStarredMessagesSchema = {
+	type: 'object',
+	properties: {
+		roomId: {
+			type: 'string',
+			minLength: 1,
+		},
+		count: {
+			type: 'number',
+			nullable: true,
+		},
+		offset: {
+			type: 'number',
+			nullable: true,
+		},
+		sort: {
+			type: 'string',
+			nullable: true,
+		},
+	},
+	required: ['roomId'],
+	additionalProperties: false,
+};
+
+const isChatGetStarredMessagesProps = ajv.compile<GetStarredMessages>(GetStarredMessagesSchema);
+
 const chatEndpoints = API.v1
 	.post(
 		'chat.pinMessage',
@@ -558,6 +590,56 @@ const chatEndpoints = API.v1
 
 			return API.v1.success();
 		},
+	)
+	.get(
+		'chat.getStarredMessages',
+		{
+			authRequired: true,
+			query: isChatGetStarredMessagesProps,
+			response: {
+				200: ajv.compile<{ messages: IMessage[]; count: number; offset: number; total: number }>({
+					type: 'object',
+					properties: {
+						messages: {
+							type: 'array',
+							items: {
+								$ref: '#/components/schemas/IMessage',
+							},
+						},
+						count: { type: 'number' },
+						offset: { type: 'number' },
+						total: { type: 'number' },
+						success: {
+							type: 'boolean',
+							enum: [true],
+						},
+					},
+					required: ['messages', 'count', 'offset', 'total', 'success'],
+					additionalProperties: false,
+				}),
+				400: validateBadRequestErrorResponse,
+				401: validateUnauthorizedErrorResponse,
+			},
+		},
+		async function action() {
+			const { roomId } = this.queryParams;
+			const { sort } = await this.parseJsonQuery();
+			const { offset, count } = await getPaginationItems(this.queryParams);
+
+			const messages = await findStarredMessages({
+				uid: this.userId,
+				roomId,
+				pagination: {
+					offset,
+					count,
+					sort,
+				},
+			});
+
+			messages.messages = await normalizeMessagesForUser(messages.messages, this.userId);
+
+			return API.v1.success(messages);
+		},
 	);
 
 API.v1.addRoute(
@@ -981,32 +1063,6 @@ API.v1.addRoute(
 	},
 );
 
-API.v1.addRoute(
-	'chat.getStarredMessages',
-	{ authRequired: true, validateParams: isChatGetStarredMessagesProps },
-	{
-		async get() {
-			const { roomId } = this.queryParams;
-			const { sort } = await this.parseJsonQuery();
-			const { offset, count } = await getPaginationItems(this.queryParams);
-
-			const messages = await findStarredMessages({
-				uid: this.userId,
-				roomId,
-				pagination: {
-					offset,
-					count,
-					sort,
-				},
-			});
-
-			messages.messages = await normalizeMessagesForUser(messages.messages, this.userId);
-
-			return API.v1.success(messages);
-		},
-	},
-);
-
 API.v1.addRoute(
 	'chat.getDiscussions',
 	{ authRequired: true, validateParams: isChatGetDiscussionsProps },
diff --git a/apps/meteor/tests/end-to-end/api/chat.ts b/apps/meteor/tests/end-to-end/api/chat.ts
index 7fd725ed5bfbc..3bfbaebd8cfc2 100644
--- a/apps/meteor/tests/end-to-end/api/chat.ts
+++ b/apps/meteor/tests/end-to-end/api/chat.ts
@@ -3475,7 +3475,7 @@ describe('[Chat]', () => {
 				.expect(400)
 				.expect((res) => {
 					expect(res.body).to.have.property('success', false);
-					expect(res.body.errorType).to.be.equal('invalid-params');
+					expect(res.body.errorType).to.be.equal('error-invalid-params');
 				})
 				.end(done);
 		});
diff --git a/packages/rest-typings/src/v1/chat.ts b/packages/rest-typings/src/v1/chat.ts
index b52bba2d61ed5..57f9894d5b204 100644
--- a/packages/rest-typings/src/v1/chat.ts
+++ b/packages/rest-typings/src/v1/chat.ts
@@ -496,39 +496,6 @@ const ChatGetMessageReadReceiptsSchema = {
 
 export const isChatGetMessageReadReceiptsProps = ajv.compile<ChatGetMessageReadReceipts>(ChatGetMessageReadReceiptsSchema);
 
-type GetStarredMessages = {
-	roomId: IRoom['_id'];
-	count?: number;
-	offset?: number;
-	sort?: string;
-};
-
-const GetStarredMessagesSchema = {
-	type: 'object',
-	properties: {
-		roomId: {
-			type: 'string',
-			minLength: 1,
-		},
-		count: {
-			type: 'number',
-			nullable: true,
-		},
-		offset: {
-			type: 'number',
-			nullable: true,
-		},
-		sort: {
-			type: 'string',
-			nullable: true,
-		},
-	},
-	required: ['roomId'],
-	additionalProperties: false,
-};
-
-export const isChatGetStarredMessagesProps = ajv.compile<GetStarredMessages>(GetStarredMessagesSchema);
-
 type GetPinnedMessages = {
 	roomId: IRoom['_id'];
 	count?: number;
@@ -946,14 +913,6 @@ export type ChatEndpoints = {
 	'/v1/chat.getMessageReadReceipts': {
 		GET: (params: ChatGetMessageReadReceipts) => { receipts: IReadReceiptWithUser[] };
 	};
-	'/v1/chat.getStarredMessages': {
-		GET: (params: GetStarredMessages) => {
-			messages: IMessage[];
-			count: number;
-			offset: number;
-			total: number;
-		};
-	};
 	'/v1/chat.getPinnedMessages': {
 		GET: (params: GetPinnedMessages) => {
 			messages: IMessage[];