diff --git a/spec/requests/api/v1/party_shares_spec.rb b/spec/requests/api/v1/party_shares_spec.rb
new file mode 100644
index 0000000..64ba752
--- /dev/null
+++ b/spec/requests/api/v1/party_shares_spec.rb
@@ -0,0 +1,139 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe 'Api::V1::PartyShares', type: :request do
+  let(:user) { create(:user) }
+  let(:access_token) do
+    Doorkeeper::AccessToken.create!(resource_owner_id: user.id, expires_in: 30.days, scopes: 'public')
+  end
+  let(:auth_headers) { { 'Authorization' => "Bearer #{access_token.token}" } }
+
+  let(:crew) { create(:crew) }
+  let(:party) { create(:party, user: user) }
+
+  before do
+    create(:crew_membership, crew: crew, user: user)
+  end
+
+  describe 'GET /api/v1/parties/:party_id/shares' do
+    context 'as party owner' do
+      it 'returns list of shares' do
+        share = create(:party_share, party: party, shareable: crew, shared_by: user)
+
+        get "/api/v1/parties/#{party.id}/shares", headers: auth_headers
+
+        expect(response).to have_http_status(:ok)
+        json = JSON.parse(response.body)
+        expect(json['shares'].length).to eq(1)
+        expect(json['shares'][0]['id']).to eq(share.id)
+      end
+
+      it 'returns empty array when no shares' do
+        get "/api/v1/parties/#{party.id}/shares", headers: auth_headers
+
+        expect(response).to have_http_status(:ok)
+        json = JSON.parse(response.body)
+        expect(json['shares']).to eq([])
+      end
+    end
+
+    context 'as non-owner' do
+      let(:other_user) { create(:user) }
+      let(:other_token) do
+        Doorkeeper::AccessToken.create!(resource_owner_id: other_user.id, expires_in: 30.days, scopes: 'public')
+      end
+      let(:other_headers) { { 'Authorization' => "Bearer #{other_token.token}" } }
+
+      it 'returns unauthorized' do
+        get "/api/v1/parties/#{party.id}/shares", headers: other_headers
+
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+
+    context 'without authentication' do
+      it 'returns unauthorized' do
+        get "/api/v1/parties/#{party.id}/shares"
+
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+  end
+
+  describe 'POST /api/v1/parties/:party_id/shares' do
+    context 'as party owner in a crew' do
+      it 'shares the party with their crew' do
+        post "/api/v1/parties/#{party.id}/shares", headers: auth_headers
+
+        expect(response).to have_http_status(:created)
+        json = JSON.parse(response.body)
+        expect(json['share']['shareable_type']).to eq('crew')
+        expect(json['share']['shareable']['id']).to eq(crew.id)
+      end
+
+      it 'returns error when already shared' do
+        create(:party_share, party: party, shareable: crew, shared_by: user)
+
+        post "/api/v1/parties/#{party.id}/shares", headers: auth_headers
+
+        expect(response).to have_http_status(:unprocessable_entity)
+      end
+    end
+
+    context 'as party owner not in a crew' do
+      before do
+        user.active_crew_membership.retire!
+      end
+
+      it 'returns not_in_crew error' do
+        post "/api/v1/parties/#{party.id}/shares", headers: auth_headers
+
+        expect(response).to have_http_status(:unprocessable_entity)
+        json = JSON.parse(response.body)
+        expect(json['code']).to eq('not_in_crew')
+      end
+    end
+
+    context 'as non-owner' do
+      let(:other_user) { create(:user) }
+      let(:other_token) do
+        Doorkeeper::AccessToken.create!(resource_owner_id: other_user.id, expires_in: 30.days, scopes: 'public')
+      end
+      let(:other_headers) { { 'Authorization' => "Bearer #{other_token.token}" } }
+
+      it 'returns unauthorized' do
+        post "/api/v1/parties/#{party.id}/shares", headers: other_headers
+
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+  end
+
+  describe 'DELETE /api/v1/parties/:party_id/shares/:id' do
+    let!(:share) { create(:party_share, party: party, shareable: crew, shared_by: user) }
+
+    context 'as party owner' do
+      it 'removes the share' do
+        delete "/api/v1/parties/#{party.id}/shares/#{share.id}", headers: auth_headers
+
+        expect(response).to have_http_status(:no_content)
+        expect(PartyShare.exists?(share.id)).to be false
+      end
+    end
+
+    context 'as non-owner' do
+      let(:other_user) { create(:user) }
+      let(:other_token) do
+        Doorkeeper::AccessToken.create!(resource_owner_id: other_user.id, expires_in: 30.days, scopes: 'public')
+      end
+      let(:other_headers) { { 'Authorization' => "Bearer #{other_token.token}" } }
+
+      it 'returns unauthorized' do
+        delete "/api/v1/parties/#{party.id}/shares/#{share.id}", headers: other_headers
+
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+  end
+end