diff --git a/onesignal-cli.gemspec b/onesignal-cli.gemspec
new file mode 100644
index 0000000..360ba2b
--- /dev/null
+++ b/onesignal-cli.gemspec
@@ -0,0 +1,25 @@
+# encoding: UTF-8
+require 'date'
+
+Gem::Specification.new do |s|
+  s.name     = "onesignal-cli"
+  s.version  = '1.0.0'
+  s.date     = Date.today
+  s.license  = "MIT"
+  s.email    = ["elliot@onesignal.com", "josh@onesignal.com"]
+  s.homepage = "https://onesignal.com"
+  s.authors  = ["Josh Kasten", "Elliot Mawby"]
+
+  s.summary     = "OneSignal's Ruby CLI"
+  s.description = "Ruby Gem for OneSignal's Ruby Command Line Interface."
+
+  s.files = Dir["lib/**/*.rb"] + %w{ bin/onesignal }
+
+  s.executables   = %w{ onesignal }
+  s.require_paths = %w{ lib }
+
+  s.add_runtime_dependency 'clamp'
+  s.add_runtime_dependency 'xcodeproj'
+
+  s.required_ruby_version = '>= 2.4'
+end
\ No newline at end of file