diff --git a/app/models/pager_tree/integrations/uptime_observer/v3.rb b/app/models/pager_tree/integrations/uptime_observer/v3.rb
new file mode 100644
index 0000000..aca11a5
--- /dev/null
+++ b/app/models/pager_tree/integrations/uptime_observer/v3.rb
@@ -0,0 +1,63 @@
+module PagerTree::Integrations
+  class UptimeObserver::V3 < Integration
+    OPTIONS = []
+    store_accessor :options, *OPTIONS.map { |x| x[:key] }.map(&:to_s), prefix: "option"
+
+    after_initialize do
+    end
+
+    def adapter_supports_incoming?
+      true
+    end
+
+    def adapter_supports_outgoing?
+      false
+    end
+
+    def adapter_incoming_can_defer?
+      true
+    end
+
+    def adapter_thirdparty_id
+      adapter_incoming_request_params.dig("incident_id")
+    end
+
+    def adapter_action
+      case adapter_incoming_request_params.dig("incident_status")
+      when "Active"
+        :create
+      when "Resolved"
+        :resolve
+      else
+        :other
+      end
+    end
+
+    def adapter_process_create
+      Alert.new(
+        title: _title,
+        description: _description,
+        thirdparty_id: adapter_thirdparty_id,
+        dedup_keys: [adapter_thirdparty_id],
+        additional_data: _additional_datums
+      )
+    end
+
+    private
+
+    def _title
+      adapter_incoming_request_params.dig("title")
+    end
+
+    def _description
+      adapter_incoming_request_params.dig("description")
+    end
+
+    def _additional_datums
+      [
+        AdditionalDatum.new(format: "link", label: "Incident URL", value: adapter_incoming_request_params.dig("incident_url")),
+        AdditionalDatum.new(format: "link", label: "Monitor URL", value: adapter_incoming_request_params.dig("monitor_url"))
+      ]
+    end
+  end
+end
diff --git a/app/views/pager_tree/integrations/uptime_observer/v3/_form_options.html.erb b/app/views/pager_tree/integrations/uptime_observer/v3/_form_options.html.erb
new file mode 100644
index 0000000..e69de29
diff --git a/app/views/pager_tree/integrations/uptime_observer/v3/_show_options.html.erb b/app/views/pager_tree/integrations/uptime_observer/v3/_show_options.html.erb
new file mode 100644
index 0000000..e69de29
diff --git a/test/fixtures/pager_tree/integrations/integrations.yml b/test/fixtures/pager_tree/integrations/integrations.yml
index c5473e2..a8112c5 100644
--- a/test/fixtures/pager_tree/integrations/integrations.yml
+++ b/test/fixtures/pager_tree/integrations/integrations.yml
@@ -205,6 +205,10 @@ uptime_kuma_v3:
   type: "PagerTree::Integrations::UptimeKuma::V3"
   # options: no_options
 
+uptime_observer_v3:
+  type: "PagerTree::Integrations::UptimeObserver::V3"
+  # options: no_options
+
 uptime_robot_v3:
   type: "PagerTree::Integrations::UptimeRobot::V3"
   # options: no_options
diff --git a/test/models/pager_tree/integrations/uptime_observer/v3_test.rb b/test/models/pager_tree/integrations/uptime_observer/v3_test.rb
new file mode 100644
index 0000000..f378c81
--- /dev/null
+++ b/test/models/pager_tree/integrations/uptime_observer/v3_test.rb
@@ -0,0 +1,71 @@
+require "test_helper"
+
+module PagerTree::Integrations
+  class UptimeObserver::V3Test < ActiveSupport::TestCase
+    include Integrateable
+
+    setup do
+      @integration = pager_tree_integrations_integrations(:uptime_observer_v3)
+
+      @create_request = {
+        incident_url: "https://app.uptimeobserver.com/monitoring/incidents/123456",
+        incident_id: 123456,
+        title: "Incident Title",
+        description: "Monitor 1 failed. Reason Socket Timeout",
+        incident_status: "Active",
+        monitor_id: 54321,
+        monitor_name: "Monitor 1",
+        monitor_url: "https://app.uptimeobserver.com/monitoring/monitor/123456"
+      }.with_indifferent_access
+
+      @resolve_request = @create_request.deep_dup
+      @resolve_request[:incident_status] = "Resolved"
+
+      @other_request = @create_request.deep_dup
+      @other_request[:incident_status] = "unknown"
+    end
+
+    test "sanity" do
+      assert @integration.adapter_supports_incoming?
+      assert @integration.adapter_incoming_can_defer?
+      assert_not @integration.adapter_supports_outgoing?
+      assert @integration.adapter_show_alerts?
+      assert @integration.adapter_show_logs?
+      assert_not @integration.adapter_show_outgoing_webhook_delivery?
+    end
+
+    test "adapter_actions" do
+      @integration.adapter_incoming_request_params = @create_request
+      assert_equal :create, @integration.adapter_action
+
+      @integration.adapter_incoming_request_params = @resolve_request
+      assert_equal :resolve, @integration.adapter_action
+
+      @integration.adapter_incoming_request_params = @other_request
+      assert_equal :other, @integration.adapter_action
+    end
+
+    test "adapter_thirdparty_id" do
+      @integration.adapter_incoming_request_params = @create_request
+      assert_equal @create_request.dig(:incident_id), @integration.adapter_thirdparty_id
+    end
+
+    test "adapter_process_create" do
+      @integration.adapter_incoming_request_params = @create_request
+
+      true_alert = Alert.new(
+        title: @create_request.dig(:title),
+        description: @create_request.dig(:description),
+        urgency: nil,
+        thirdparty_id: @create_request.dig(:incident_id),
+        dedup_keys: [@create_request.dig(:incident_id)],
+        additional_data: [
+          AdditionalDatum.new(format: "link", label: "Incident URL", value: @create_request.dig(:incident_url)),
+          AdditionalDatum.new(format: "link", label: "Monitor URL", value: @create_request.dig(:monitor_url))
+        ]
+      )
+
+      assert_equal true_alert.to_json, @integration.adapter_process_create.to_json
+    end
+  end
+end