diff --git a/app/controllers/api/v0/tags_controller.rb b/app/controllers/api/v0/tags_controller.rb
index 4bb084286..1ce401b1c 100644
--- a/app/controllers/api/v0/tags_controller.rb
+++ b/app/controllers/api/v0/tags_controller.rb
@@ -1,5 +1,9 @@
+#   Copyright (c) 2010-2011, Diaspora Inc.  This file is
+#   licensed under the Affero General Public License version 3 or later.  See
+#   the COPYRIGHT file.
+
 class Api::V0::TagsController < ApplicationController
   def show
-    head :ok
+    render :json => Api::V0::Serializers::Tag.new(params[:name])
   end
 end
diff --git a/app/controllers/api/v0/users_controller.rb b/app/controllers/api/v0/users_controller.rb
index 882a46162..5328a63c3 100644
--- a/app/controllers/api/v0/users_controller.rb
+++ b/app/controllers/api/v0/users_controller.rb
@@ -1,3 +1,7 @@
+#   Copyright (c) 2010-2011, Diaspora Inc.  This file is
+#   licensed under the Affero General Public License version 3 or later.  See
+#   the COPYRIGHT file.
+
 class Api::V0::UsersController < ApplicationController
   def show
     if user = User.find_by_username(params[:username])
diff --git a/app/models/api/v0/serializers/tag.rb b/app/models/api/v0/serializers/tag.rb
new file mode 100644
index 000000000..73ef055d8
--- /dev/null
+++ b/app/models/api/v0/serializers/tag.rb
@@ -0,0 +1,19 @@
+#   Copyright (c) 2010-2011, Diaspora Inc.  This file is
+#   licensed under the Affero General Public License version 3 or later.  See
+#   the COPYRIGHT file.
+
+class Api::V0::Serializers::Tag
+
+  def initialize(tag)
+    @stream = Stream::Tag.new(nil, tag)
+  end
+
+  def as_json(opts={})
+    {
+      "name" => @stream.tag_name,
+      "person_count" => @stream.people_count,
+      "followed_count" => @stream.tag_follow_count,
+      "posts" => []
+    }
+  end
+end
diff --git a/app/models/api/v0/serializers/user.rb b/app/models/api/v0/serializers/user.rb
index 7bbaa259d..2dc94fc07 100644
--- a/app/models/api/v0/serializers/user.rb
+++ b/app/models/api/v0/serializers/user.rb
@@ -1,8 +1,9 @@
-class Api::V0::Serializers::User
-  attr_accessor :user
+#   Copyright (c) 2010-2011, Diaspora Inc.  This file is
+#   licensed under the Affero General Public License version 3 or later.  See
+#   the COPYRIGHT file.
 
+class Api::V0::Serializers::User
   def initialize(user)
-    @user = user
     @person = user.person
     @profile = @person.profile
   end
diff --git a/lib/stream/tag.rb b/lib/stream/tag.rb
index 312a3b58f..97d7a7936 100644
--- a/lib/stream/tag.rb
+++ b/lib/stream/tag.rb
@@ -1,3 +1,7 @@
+#   Copyright (c) 2010-2011, Diaspora Inc.  This file is
+#   licensed under the Affero General Public License version 3 or later.  See
+#   the COPYRIGHT file.
+
 class Stream::Tag < Stream::Base
   attr_accessor :tag_name, :people_page
 
diff --git a/spec/lib/stream/tag_spec.rb b/spec/lib/stream/tag_spec.rb
index edc9d4e7e..3c12d55f0 100644
--- a/spec/lib/stream/tag_spec.rb
+++ b/spec/lib/stream/tag_spec.rb
@@ -1,3 +1,7 @@
+#   Copyright (c) 2010-2011, Diaspora Inc.  This file is
+#   licensed under the Affero General Public License version 3 or later.  See
+#   the COPYRIGHT file.
+
 require 'spec_helper'
 require File.join(Rails.root, 'spec', 'shared_behaviors', 'stream')