diff --git a/README.md b/README.md
index 3970f6bc..0f1515f6 100644
--- a/README.md
+++ b/README.md
@@ -60,6 +60,7 @@ Argument | Description | Required? |  Type |  Default Value|
 `app_name` | Name of your program. | Y | String | N/A |
 `instance_id` | Identifier for the running instance of program. Important so you can trace back to where metrics are being collected from. **Highly recommended be be set.** | N | String | random UUID |
 `environment` | Environment the program is running on. Could be for example `prod` or `dev`. Not yet in use. | N | String | `default` |
+`project_name` | Name of the project to retrieve features from. If not set, all feature flags will be retrieved. | N | String | nil |
 `refresh_interval` | How often the unleash client should check with the server for configuration changes. | N | Integer |  15 |
 `metrics_interval` | How often the unleash client should send metrics to server. | N | Integer | 10 |
 `disable_client` | Disables all communication with the Unleash server, effectively taking it *offline*. If set, `is_enabled?` will always answer with the `default_value` and configuration validation is skipped. Defeats the entire purpose of using unleash, but can be useful in when running tests. | N | Boolean | `false` |
diff --git a/lib/unleash/configuration.rb b/lib/unleash/configuration.rb
index ced7026c..d78e5f43 100644
--- a/lib/unleash/configuration.rb
+++ b/lib/unleash/configuration.rb
@@ -8,6 +8,7 @@ class Configuration
       :app_name,
       :environment,
       :instance_id,
+      :project_name,
       :custom_http_headers,
       :disable_client,
       :disable_metrics,
@@ -52,15 +53,17 @@ def http_headers
     end
 
     def fetch_toggles_url
-      self.url + '/client/features'
+      project_param = (self.project_name.nil? ? "" : "?project=#{self.project_name}")
+
+      "#{self.url}/client/features#{project_param}"
     end
 
     def client_metrics_url
-      self.url + '/client/metrics'
+      "#{self.url}/client/metrics"
     end
 
     def client_register_url
-      self.url + '/client/register'
+      "#{self.url}/client/register"
     end
 
     private
@@ -76,6 +79,7 @@ def set_defaults
       self.environment      = 'default'
       self.url              = nil
       self.instance_id      = SecureRandom.uuid
+      self.project_name     = nil
       self.disable_client   = false
       self.disable_metrics  = false
       self.refresh_interval = 15
diff --git a/spec/unleash/configuration_spec.rb b/spec/unleash/configuration_spec.rb
index f9edf473..d5387582 100644
--- a/spec/unleash/configuration_spec.rb
+++ b/spec/unleash/configuration_spec.rb
@@ -23,6 +23,7 @@
       expect(config.retry_limit).to eq(1)
 
       expect(config.backup_file).to_not be_nil
+      expect(config.project_name).to be_nil
 
       expect{ config.validate! }.to raise_error(ArgumentError)
     end
@@ -61,6 +62,11 @@
       expect(config.client_register_url).to eq('https://testurl/api/client/register')
     end
 
+    it "should build the correct unleash features endpoint when project_name is used" do
+      config = Unleash::Configuration.new(url: 'https://testurl/api', app_name: 'test-app', project_name: 'test-project')
+      expect(config.fetch_toggles_url).to eq('https://testurl/api/client/features?project=test-project')
+    end
+
     it "should allow hashes for custom_http_headers via yield" do
       Unleash.configure do |config|
         config.url      = 'http://test-url/'