diff --git a/CHANGELOG b/CHANGELOG
index 2f310a4b028..002a132b9cd 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -7,6 +7,7 @@ v 8.3.0 (unreleased)
   - Add ignore whitespace change option to commit view
   - Fire update hook from GitLab
   - Don't show project fork event as "imported"
+  - Expose events API with comment information and author info
 
 v 8.2.2
   - Fix 404 in redirection after removing a project (Stan Hu)
diff --git a/doc/api/notes.md b/doc/api/notes.md
index e7f299c0994..4d7ef288df8 100644
--- a/doc/api/notes.md
+++ b/doc/api/notes.md
@@ -35,7 +35,9 @@ Parameters:
     "created_at": "2013-10-02T09:22:45Z",
     "system": true,
     "upvote": false,
-    "downvote": false
+    "downvote": false,
+    "noteable_id": 377,
+    "noteable_type": "Issue"
   },
   {
     "id": 305,
@@ -52,7 +54,9 @@ Parameters:
     "created_at": "2013-10-02T09:56:03Z",
     "system": true,
     "upvote": false,
-    "downvote": false
+    "downvote": false,
+    "noteable_id": 121,
+    "noteable_type": "Issue"
   }
 ]
 ```
@@ -219,7 +223,12 @@ Parameters:
     "state": "active",
     "created_at": "2013-09-30T13:46:01Z"
   },
-  "created_at": "2013-10-02T08:57:14Z"
+  "created_at": "2013-10-02T08:57:14Z",
+  "system": false,
+  "upvote": false,
+  "downvote": false,
+  "noteable_id": 2,
+  "noteable_type": "MergeRequest"
 }
 ```
 
diff --git a/doc/api/projects.md b/doc/api/projects.md
index 755cc6525c2..42919a312ae 100644
--- a/doc/api/projects.md
+++ b/doc/api/projects.md
@@ -245,9 +245,17 @@ Parameters:
     "target_id": 830,
     "target_type": "Issue",
     "author_id": 1,
-    "author_username": "john",
     "data": null,
-    "target_title": "Public project search field"
+    "target_title": "Public project search field",
+    "author": {
+      "name": "Dmitriy Zaporozhets",
+      "username": "root",
+      "id": 1,
+      "state": "active",
+      "avatar_url": "http://localhost:3000/uploads/user/avatar/1/fox_avatar.png",
+      "web_url": "http://localhost:3000/u/root"
+    },
+    "author_username": "root"
   },
   {
     "title": null,
@@ -256,6 +264,14 @@ Parameters:
     "target_id": null,
     "target_type": null,
     "author_id": 1,
+    "author": {
+      "name": "Dmitriy Zaporozhets",
+      "username": "root",
+      "id": 1,
+      "state": "active",
+      "avatar_url": "http://localhost:3000/uploads/user/avatar/1/fox_avatar.png",
+      "web_url": "http://localhost:3000/u/root"
+    },
     "author_username": "john",
     "data": {
       "before": "50d4420237a9de7be1304607147aec22e4a14af7",
@@ -292,9 +308,56 @@ Parameters:
     "target_id": 840,
     "target_type": "Issue",
     "author_id": 1,
-    "author_username": "john",
     "data": null,
-    "target_title": "Finish & merge Code search PR"
+    "target_title": "Finish & merge Code search PR",
+    "author": {
+      "name": "Dmitriy Zaporozhets",
+      "username": "root",
+      "id": 1,
+      "state": "active",
+      "avatar_url": "http://localhost:3000/uploads/user/avatar/1/fox_avatar.png",
+      "web_url": "http://localhost:3000/u/root"
+    },
+    "author_username": "root"
+  },
+  {
+    "title": null,
+    "project_id": 15,
+    "action_name": "commented on",
+    "target_id": 1312,
+    "target_type": "Note",
+    "author_id": 1,
+    "data": null,
+    "target_title": null,
+    "created_at": "2015-12-04T10:33:58.089Z",
+    "note": {
+      "id": 1312,
+      "body": "What an awesome day!",
+      "attachment": null,
+      "author": {
+        "name": "Dmitriy Zaporozhets",
+        "username": "root",
+        "id": 1,
+        "state": "active",
+        "avatar_url": "http://localhost:3000/uploads/user/avatar/1/fox_avatar.png",
+        "web_url": "http://localhost:3000/u/root"
+      },
+      "created_at": "2015-12-04T10:33:56.698Z",
+      "system": false,
+      "upvote": false,
+      "downvote": false,
+      "noteable_id": 377,
+      "noteable_type": "Issue"
+    },
+    "author": {
+      "name": "Dmitriy Zaporozhets",
+      "username": "root",
+      "id": 1,
+      "state": "active",
+      "avatar_url": "http://localhost:3000/uploads/user/avatar/1/fox_avatar.png",
+      "web_url": "http://localhost:3000/u/root"
+    },
+    "author_username": "root"
   }
 ]
 ```
diff --git a/lib/api/entities.rb b/lib/api/entities.rb
index 9f337bc3cc6..96b73df6af9 100644
--- a/lib/api/entities.rb
+++ b/lib/api/entities.rb
@@ -194,6 +194,7 @@ module API
       expose :author, using: Entities::UserBasic
       expose :created_at
       expose :system?, as: :system
+      expose :noteable_id, :noteable_type
       # upvote? and downvote? are deprecated, always return false
       expose :upvote?, as: :upvote
       expose :downvote?, as: :downvote
@@ -224,6 +225,8 @@ module API
       expose :target_id, :target_type, :author_id
       expose :data, :target_title
       expose :created_at
+      expose :note, using: Entities::Note, if: ->(event, options) { event.note? }
+      expose :author, using: Entities::UserBasic, if: ->(event, options) { event.author }
 
       expose :author_username do |event, options|
         if event.author
diff --git a/spec/requests/api/projects_spec.rb b/spec/requests/api/projects_spec.rb
index 9fc294118ae..c59ee7af8ab 100644
--- a/spec/requests/api/projects_spec.rb
+++ b/spec/requests/api/projects_spec.rb
@@ -389,14 +389,30 @@ describe API::API, api: true  do
   describe 'GET /projects/:id/events' do
     before { project_member2 }
 
-    it 'should return a project events' do
-      get api("/projects/#{project.id}/events", user)
-      expect(response.status).to eq(200)
-      json_event = json_response.first
+    context 'valid request' do
+      before do
+        note = create(:note_on_issue, note: 'What an awesome day!', project: project)
+        EventCreateService.new.leave_note(note, note.author)
+        get api("/projects/#{project.id}/events", user)
+      end
 
-      expect(json_event['action_name']).to eq('joined')
-      expect(json_event['project_id'].to_i).to eq(project.id)
-      expect(json_event['author_username']).to eq(user3.username)
+      it { expect(response.status).to eq(200) }
+
+      context 'joined event' do
+        let(:json_event) { json_response[1] }
+
+        it { expect(json_event['action_name']).to eq('joined') }
+        it { expect(json_event['project_id'].to_i).to eq(project.id) }
+        it { expect(json_event['author_username']).to eq(user3.username) }
+        it { expect(json_event['author']['name']).to eq(user3.name) }
+      end
+
+      context 'comment event' do
+        let(:json_event) { json_response.first }
+
+        it { expect(json_event['action_name']).to eq('commented on') }
+        it { expect(json_event['note']['body']).to eq('What an awesome day!') }
+      end
     end
 
     it 'should return a 404 error if not found' do