diff --git a/public/openapi/write.yaml b/public/openapi/write.yaml
index c59b9bce29..81335c78f3 100644
--- a/public/openapi/write.yaml
+++ b/public/openapi/write.yaml
@@ -150,6 +150,8 @@ paths:
     $ref: 'write/topics/tid/follow.yaml'
   /topics/{tid}/ignore:
     $ref: 'write/topics/tid/ignore.yaml'
+  /topics/{tid}/favorite:
+    $ref: 'write/topics/tid/favorite.yaml'
   /topics/{tid}/tags:
     $ref: 'write/topics/tid/tags.yaml'
   /topics/{tid}/thumbs:
diff --git a/public/openapi/write/topics/tid/favorite.yaml b/public/openapi/write/topics/tid/favorite.yaml
new file mode 100644
index 0000000000..b36daa28ef
--- /dev/null
+++ b/public/openapi/write/topics/tid/favorite.yaml
@@ -0,0 +1,53 @@
+put:
+  tags:
+    - topics
+  summary: Add a topic to favorites
+  description: This operation saves the specified topic to the current user's favorites.
+  parameters:
+    - in: path
+      name: tid
+      schema:
+        type: string
+      required: true
+      description: A valid topic id
+      example: 1
+  responses:
+    '200':
+      description: Topic successfully saved to favorites
+      content:
+        application/json:
+          schema:
+            type: object
+            properties:
+              status:
+                $ref: ../../../components/schemas/Status.yaml#/Status
+              response:
+                type: object
+                properties: {}
+
+delete:
+  tags:
+    - topics
+  summary: Remove a topic from favorites
+  description: This operation removes the specified topic from the current user's favorites.
+  parameters:
+    - in: path
+      name: tid
+      schema:
+        type: string
+      required: true
+      description: A valid topic ID
+      example: 1
+  responses:
+    '200':
+      description: Topic successfully removed from favorites
+      content:
+        application/json:
+          schema:
+            type: object
+            properties:
+              status:
+                $ref: ../../../components/schemas/Status.yaml#/Status
+              response:
+                type: object
+                properties: {}
diff --git a/src/api/topics.js b/src/api/topics.js
index 7a6cabf966..83442d6dc8 100644
--- a/src/api/topics.js
+++ b/src/api/topics.js
@@ -173,6 +173,14 @@ topicsAPI.unfollow = async function (caller, data) {
 	await topics.unfollow(data.tid, caller.uid);
 };
 
+topicsAPI.favorite = async function (caller, data) {
+	await topics.favorite(data.tid, caller.uid);
+};
+
+topicsAPI.unfavorite = async function (caller, data) {
+	await topics.unfavorite(data.tid, caller.uid);
+};
+
 topicsAPI.updateTags = async (caller, { tid, tags }) => {
 	if (!await privileges.topics.canEdit(tid, caller.uid)) {
 		throw new Error('[[error:no-privileges]]');