diff --git a/lib/tumblr/client.rb b/lib/tumblr/client.rb
index b0c3d6a..236fda6 100644
--- a/lib/tumblr/client.rb
+++ b/lib/tumblr/client.rb
@@ -34,6 +34,10 @@ def api_host
       self.class.default_api_host
     end
 
+    def api_scheme
+      @api_scheme || 'https'
+    end
+
     def credentials
       {
         :consumer_key => @consumer_key,
diff --git a/lib/tumblr/config.rb b/lib/tumblr/config.rb
index bef327e..0aa8517 100644
--- a/lib/tumblr/config.rb
+++ b/lib/tumblr/config.rb
@@ -6,7 +6,8 @@ module Config
       :consumer_secret,
       :oauth_token,
       :oauth_token_secret,
-      :client
+      :client,
+      :api_scheme
     ]
 
     attr_accessor *VALID_OPTIONS_KEYS
diff --git a/lib/tumblr/connection.rb b/lib/tumblr/connection.rb
index fe259e2..8cd3ca6 100644
--- a/lib/tumblr/connection.rb
+++ b/lib/tumblr/connection.rb
@@ -12,12 +12,12 @@ def connection(options={})
           :accept => 'application/json',
           :user_agent => "tumblr_client (ruby) - #{Tumblr::VERSION}"
         },
-        :url => "http://#{api_host}/"
+        :url => "#{api_scheme}://#{api_host}/"
       }
 
       client = Faraday.default_adapter
 
-      Faraday.new("http://#{api_host}/", default_options.merge(options)) do |conn|
+      Faraday.new(default_options.merge(options)) do |conn|
         data = { :api_host => api_host }.merge(credentials)
         unless credentials.empty?
           conn.request :oauth, data
diff --git a/spec/examples/client_spec.rb b/spec/examples/client_spec.rb
index 1cdab6b..2df6183 100644
--- a/spec/examples/client_spec.rb
+++ b/spec/examples/client_spec.rb
@@ -43,4 +43,24 @@
 
   end
 
+  describe :api_scheme do
+
+    it 'defaults to https' do
+      expect(Tumblr::Client.new.api_scheme).to eq('https')
+    end
+
+    it 'can be set by the initializer' do
+      client = Tumblr::Client.new(:api_scheme => 'http')
+      expect(client.api_scheme).to eq('http')
+    end
+
+    it 'can be set globally' do
+      Tumblr.configure do |c|
+        c.api_scheme = 'http'
+      end
+      expect(Tumblr::Client.new.api_scheme).to eq('http')
+    end
+
+  end
+
 end