diff --git a/.coveragerc b/.coveragerc
new file mode 100644
index 0000000..2e7b2d4
--- /dev/null
+++ b/.coveragerc
@@ -0,0 +1,4 @@
+[coverage:run]
+relative_files = true
+omit =
+    tests/*
\ No newline at end of file
diff --git a/.github/workflows/.cov.yml b/.github/workflows/.cov.yml
new file mode 100644
index 0000000..d8a54b7
--- /dev/null
+++ b/.github/workflows/.cov.yml
@@ -0,0 +1,49 @@
+name:
+  cov
+
+on:
+  push
+
+jobs:
+  cov-job:
+    runs-on: ubuntu-latest
+    name: checking coverage
+    permissions:
+      pull-requests: write
+      contents: write
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: set up python
+        id: setup-python
+        uses: actions/setup-python@v4
+        with:
+          python-version: 3
+
+      - name: installing uv
+        run: pip install uv
+
+      - name: syncing uv
+        run: uv sync --all-extras
+
+      - name: activating uv venv
+        run: source .venv/bin/activate && coverage run -m pytest
+
+#      - name: launching coverage
+#        run: coverage run -m pytest
+
+      - name: cov_comment
+        id: coverage_comment
+        uses: py-cov-action/python-coverage-comment-action@v3
+        with:
+          GITHUB_TOKEN: ${{ github.token }}
+          MINIMUM_GREEN: 90
+
+      - name: Store Pull Request comment to be posted
+        uses: actions/upload-artifact@v4
+        if: steps.coverage_comment.outputs.COMMENT_FILE_WRITTEN == 'true'
+        with:
+          # If you use a different name, update COMMENT_ARTIFACT_NAME accordingly
+          name: python-coverage-comment-action
+          # If you use a different name, update COMMENT_FILENAME accordingly
+          path: python-coverage-comment-action.txt
\ No newline at end of file
diff --git a/README.md b/README.md
index fadc3a7..61e1936 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # sqlmodelgen
 
+![Coverage badge](https://raw.githubusercontent.com/nucccc/sqlmodelgen/python-coverage-comment-action-data/badge.svg)
+
 `sqlmodelgen` is a library to generate models for the **sqlmodel** library ([repo](https://github.com/fastapi/sqlmodel), [official docs](https://sqlmodel.tiangolo.com/)).
 
 It accepts in input the following sources: