diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..de0d9b8
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,38 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.10", "3.11", "3.12"]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install -r requirements.txt
+          python -m pip install -r requirements-dev.txt
+
+      - name: Ruff
+        run: ruff check .
+
+      - name: Black
+        run: black --check .
+
+      - name: Pytest
+        run: pytest -v
\ No newline at end of file
diff --git a/examples/scrape_news.py b/examples/scrape_news.py
index 373c2e1..904afde 100644
--- a/examples/scrape_news.py
+++ b/examples/scrape_news.py
@@ -82,6 +82,7 @@ def build_client() -> ThordataClient:
 # CLI parsing
 # -------------------------------------------------------------
 
+
 def parse_args() -> argparse.Namespace:
     parser = argparse.ArgumentParser(
         description="Google News scraper using Thordata SERP API (engine=google_news)",
@@ -172,6 +173,7 @@ def parse_args() -> argparse.Namespace:
 # SERP call: engine=google_news
 # -------------------------------------------------------------
 
+
 def search_google_news(
     client: ThordataClient,
     query: str,
@@ -260,6 +262,7 @@ def search_google_news(
 # Main
 # -------------------------------------------------------------
 
+
 def main() -> None:
     args = parse_args()
     client = build_client()
@@ -323,4 +326,4 @@ def main() -> None:
 
 
 if __name__ == "__main__":
-    main()
\ No newline at end of file
+    main()
diff --git a/requirements-dev.txt b/requirements-dev.txt
new file mode 100644
index 0000000..d9d2f0b
--- /dev/null
+++ b/requirements-dev.txt
@@ -0,0 +1,4 @@
+pytest>=8.0.0
+pytest-httpserver>=1.1.0
+ruff>=0.1.0
+black>=23.0.0
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
index 896c341..35f2315 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-thordata-sdk>=0.3.0
+thordata-sdk>=0.5.0
 python-dotenv>=1.0.0
 pandas>=2.1.0
\ No newline at end of file
diff --git a/test/__pycache__/test_examples_scrape_news_offline_e2e.cpython-314-pytest-9.0.2.pyc b/test/__pycache__/test_examples_scrape_news_offline_e2e.cpython-314-pytest-9.0.2.pyc
new file mode 100644
index 0000000..01c667a
Binary files /dev/null and b/test/__pycache__/test_examples_scrape_news_offline_e2e.cpython-314-pytest-9.0.2.pyc differ
diff --git a/test/test_examples_scrape_news_offline_e2e.py b/test/test_examples_scrape_news_offline_e2e.py
new file mode 100644
index 0000000..fd8d6d1
--- /dev/null
+++ b/test/test_examples_scrape_news_offline_e2e.py
@@ -0,0 +1,76 @@
+import json
+import os
+import subprocess
+import sys
+from pathlib import Path
+from urllib.parse import parse_qs
+
+from pytest_httpserver import HTTPServer
+from werkzeug.wrappers import Request, Response
+
+
+def test_scrape_news_runs_offline(httpserver: HTTPServer, tmp_path: Path) -> None:
+    engines_seen: list[str] = []
+
+    def handler(request: Request) -> Response:
+        body = request.get_data(as_text=True) or ""
+        form = parse_qs(body)
+        engine = (form.get("engine") or [""])[0]
+        engines_seen.append(engine)
+
+        payload = {
+            "code": 200,
+            "news_results": [
+                {
+                    "title": "Example News",
+                    "link": "https://example.com",
+                    "source": "ExampleSource",
+                    "snippet": "Example snippet",
+                    "date": "Today",
+                }
+            ],
+            "organic": [],
+        }
+        return Response(
+            json.dumps(payload), status=200, content_type="application/json"
+        )
+
+    httpserver.expect_request("/request", method="POST").respond_with_handler(handler)
+    base_url = httpserver.url_for("/").rstrip("/").replace("localhost", "127.0.0.1")
+
+    outfile = tmp_path / "news.csv"
+
+    env = os.environ.copy()
+    env["THORDATA_SCRAPER_TOKEN"] = "dummy"
+    env["THORDATA_SCRAPERAPI_BASE_URL"] = base_url
+    env["PYTHONIOENCODING"] = "utf-8"
+    env["PYTHONUTF8"] = "1"
+    env["NO_PROXY"] = "127.0.0.1,localhost"
+    env["no_proxy"] = env["NO_PROXY"]
+
+    result = subprocess.run(
+        [
+            sys.executable,
+            "examples/scrape_news.py",
+            "--query",
+            "pizza",
+            "--num",
+            "1",
+            "--gl",
+            "us",
+            "--hl",
+            "en",
+            "--outfile",
+            str(outfile),
+        ],
+        env=env,
+        capture_output=True,
+        text=True,
+        encoding="utf-8",
+        errors="replace",
+        timeout=60,
+    )
+
+    assert result.returncode == 0, (result.stdout or "") + "\n" + (result.stderr or "")
+    assert "google_news" in engines_seen
+    assert outfile.exists()