diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..890d344
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,40 @@
+name: CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Set up Python 3.9
+      uses: actions/setup-python@v3
+      with:
+        python-version: 3.9
+
+    - name: Install Poetry
+      run: |
+        curl -sSL https://install.python-poetry.org | python3 -
+        echo "$HOME/.local/bin" >> $GITHUB_PATH
+
+    - name: Install dependencies
+      run: poetry install
+
+    - name: Run tests
+      run: poetry run pytest --cov=src/tensorweaver --cov-report=xml
+
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v3
+      with:
+        token: ${{ secrets.CODECOV_TOKEN }} # not required for public repos
+        files: ./coverage.xml # optional
+        flags: unittests # optional
+        name: codecov-umbrella # optional
+        fail_ci_if_error: true # optional (default = false)
+        verbose: true # optional (default = false)
diff --git a/README.md b/README.md
index 5069afc..fb3cc3e 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,8 @@
 # TensorWeaver
 
+![CI](https://github.com/howl-anderson/tensorweaver/actions/workflows/ci.yml/badge.svg)
+[![codecov](https://codecov.io/gh/howl-anderson/tensorweaver/branch/main/graph/badge.svg)](https://codecov.io/gh/howl-anderson/tensorweaver)
+
 <p align="center">
   <img src="docs/assets/logo.png" alt="TensorWeaver Logo" width="200"/>
 </p>