diff --git a/.github/actions/contract-tests/action.yml b/.github/actions/contract-tests/action.yml
new file mode 100644
index 0000000..7ce8ce7
--- /dev/null
+++ b/.github/actions/contract-tests/action.yml
@@ -0,0 +1,28 @@
+name: Contract Tests
+description: 'Build and run SDK contract tests.'
+inputs:
+  token:
+    description: 'GH token used to download SDK test harness.'
+    required: true
+
+runs:
+  using: composite
+  steps:
+    - name: Build contract test service
+      shell: bash
+      run: make build-contract-tests
+
+    - name: Start contract test service
+      shell: bash
+      run: make start-contract-test-service-bg
+
+    - name: Run contract tests
+      uses: launchdarkly/gh-actions/actions/contract-tests@contract-tests-v1
+      with:
+        repo: sse-contract-tests
+        branch: main
+        version: v2
+        token: ${{ inputs.token }}
+        test_service_port: '8000'
+        debug_logging: 'true'
+        enable_persistence_tests: 'false'
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6f370ad..3a27c45 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -45,7 +45,9 @@ jobs:
 
       # After junit/coverage artifacts: contract test failures must not skip uploads above.
       - name: Contract tests
-        run: make contract-tests
+        uses: ./.github/actions/contract-tests
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
 
   windows:
     runs-on: windows-latest