diff --git a/.github/workflows/lint-test-cover-docs.yml b/.github/workflows/lint-test-cover-docs.yml
index 6ae495f..a7ffb7d 100644
--- a/.github/workflows/lint-test-cover-docs.yml
+++ b/.github/workflows/lint-test-cover-docs.yml
@@ -21,6 +21,14 @@ jobs:
           python -m pylint tinynmc # Check against linting rules.
           python -m pytest # Run tests.
           python src/tinynmc/tinynmc.py -v # Run tests via execution.
+      - name: Publish coverage results.
+        run: |
+          pip install -U .[coveralls]
+          python -m coveralls --service=github # Submit to coveralls.
+        if: matrix.python-version == '3.11'
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}
       - name: Test auto-generation of documentation.
         run: |
           pip install -U .[docs]
diff --git a/README.rst b/README.rst
index 81aca60..6bc7f0f 100644
--- a/README.rst
+++ b/README.rst
@@ -4,7 +4,7 @@ tinynmc
 
 Minimal pure-Python implementation of a secure multi-party computation (MPC) protocol for evaluating arithmetic sum-of-products expressions via a non-interactive computation phase.
 
-|pypi| |readthedocs| |actions|
+|pypi| |readthedocs| |actions| |coveralls|
 
 .. |pypi| image:: https://badge.fury.io/py/tinynmc.svg
    :target: https://badge.fury.io/py/tinynmc
@@ -18,6 +18,10 @@ Minimal pure-Python implementation of a secure multi-party computation (MPC) pro
    :target: https://github.com/nillion-oss/tinynmc/actions/workflows/lint-test-cover-docs.yml
    :alt: GitHub Actions status.
 
+.. |coveralls| image:: https://coveralls.io/repos/github/nillion-oss/tinynmc/badge.svg?branch=main
+   :target: https://coveralls.io/github/nillion-oss/tinynmc?branch=main
+   :alt: Coveralls test coverage summary.
+
 Installation and Usage
 ----------------------