diff --git a/app/blueprints/api/v1/party_share_blueprint.rb b/app/blueprints/api/v1/party_share_blueprint.rb
new file mode 100644
index 0000000..4bbc73d
--- /dev/null
+++ b/app/blueprints/api/v1/party_share_blueprint.rb
@@ -0,0 +1,57 @@
+# frozen_string_literal: true
+
+module Api
+  module V1
+    class PartyShareBlueprint < ApiBlueprint
+      identifier :id
+
+      fields :created_at
+
+      field :shareable_type do |share|
+        share.shareable_type.downcase
+      end
+
+      field :shareable_id do |share|
+        share.shareable_id
+      end
+
+      view :with_shareable do
+        fields :created_at
+
+        field :shareable_type do |share|
+          share.shareable_type.downcase
+        end
+
+        field :shareable do |share|
+          case share.shareable_type
+          when 'Crew'
+            CrewBlueprint.render_as_hash(share.shareable, view: :minimal)
+          end
+        end
+
+        field :shared_by do |share|
+          UserBlueprint.render_as_hash(share.shared_by, view: :minimal)
+        end
+      end
+
+      view :with_party do
+        fields :created_at
+
+        field :shareable_type do |share|
+          share.shareable_type.downcase
+        end
+
+        field :party do |share|
+          PartyBlueprint.render_as_hash(share.party, view: :preview)
+        end
+
+        field :shareable do |share|
+          case share.shareable_type
+          when 'Crew'
+            CrewBlueprint.render_as_hash(share.shareable, view: :minimal)
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/app/errors/party_share_errors.rb b/app/errors/party_share_errors.rb
new file mode 100644
index 0000000..a2f591c
--- /dev/null
+++ b/app/errors/party_share_errors.rb
@@ -0,0 +1,77 @@
+# frozen_string_literal: true
+
+module PartyShareErrors
+  # Base class for all party share-related errors
+  class PartyShareError < StandardError
+    def http_status
+      :unprocessable_entity
+    end
+
+    def code
+      self.class.name.demodulize.underscore
+    end
+
+    def to_hash
+      {
+        message: message,
+        code: code
+      }
+    end
+  end
+
+  class NotInCrewError < PartyShareError
+    def http_status
+      :unprocessable_entity
+    end
+
+    def code
+      'not_in_crew'
+    end
+
+    def message
+      'You must be in a crew to share parties'
+    end
+  end
+
+  class NotPartyOwnerError < PartyShareError
+    def http_status
+      :forbidden
+    end
+
+    def code
+      'not_party_owner'
+    end
+
+    def message
+      'Only the party owner can share this party'
+    end
+  end
+
+  class AlreadySharedError < PartyShareError
+    def http_status
+      :conflict
+    end
+
+    def code
+      'already_shared'
+    end
+
+    def message
+      'This party is already shared with this crew'
+    end
+  end
+
+  class CanOnlyShareToOwnCrewError < PartyShareError
+    def http_status
+      :forbidden
+    end
+
+    def code
+      'can_only_share_to_own_crew'
+    end
+
+    def message
+      'You can only share parties with your own crew'
+    end
+  end
+end