diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
new file mode 100644
index 0000000..4126c27
--- /dev/null
+++ b/.gitea/workflows/ci.yml
@@ -0,0 +1,28 @@
+name: CI
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt
+
+      - name: Run tests
+        run: |
+          pytest -q
+
diff --git a/api/tests/__init__.py b/api/tests/__init__.py
new file mode 100644
index 0000000..09ba083
--- /dev/null
+++ b/api/tests/__init__.py
@@ -0,0 +1,2 @@
+"""Tests for the FastAPI app."""
+
diff --git a/api/tests/test_app.py b/api/tests/test_app.py
new file mode 100644
index 0000000..779c697
--- /dev/null
+++ b/api/tests/test_app.py
@@ -0,0 +1,19 @@
+from fastapi.testclient import TestClient
+
+from api.main import app
+
+
+client = TestClient(app)
+
+
+def test_health() -> None:
+    resp = client.get("/health")
+    assert resp.status_code == 200
+    assert resp.json() == {"status": "ok"}
+
+
+def test_root() -> None:
+    resp = client.get("/")
+    assert resp.status_code == 200
+    assert resp.json() == {"message": "FastAPI is running"}
+
diff --git a/requirements.txt b/requirements.txt
index 364e2ee..a00c8f1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,4 @@
 fastapi
 uvicorn[standard]
+pytest
+httpx