diff --git a/Gemfile b/Gemfile
index f411bd7..f15c556 100644
--- a/Gemfile
+++ b/Gemfile
@@ -15,3 +15,4 @@ gem 'thin'
 gem 'puma'
 gem 'http'
 gem 'webrick'
+gem 'rack-cors'
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diff --git a/Gemfile.lock b/Gemfile.lock
index ec07921..9292115 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -68,6 +68,8 @@ GEM
     rack (2.2.6.4)
     rack-accept (0.4.5)
       rack (>= 0.4)
+    rack-cors (2.0.1)
+      rack (>= 2.0.0)
     rack-protection (3.0.5)
       rack
     rake (13.0.6)
@@ -114,6 +116,7 @@ DEPENDENCIES
   http
   minecraft_items
   puma
+  rack-cors
   rake
   rspec
   sinatra
diff --git a/config.ru b/config.ru
index ed47295..04d7d48 100644
--- a/config.ru
+++ b/config.ru
@@ -1,5 +1,13 @@
 $:.unshift "app/"
 
 require 'minecraft_api'
+require 'rack/cors'
+
+use Rack::Cors do
+  allow do
+    origins 'http://localhost:3000'
+    resource '*', headers: :any, methods: [:get, :post, :put, :patch, :delete, :options]
+  end
+end
 
 run MinecraftApi
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