diff --git a/.coveragerc b/.coveragerc
new file mode 100644
index 00000000..0a3db04a
--- /dev/null
+++ b/.coveragerc
@@ -0,0 +1,11 @@
+[run]
+branch = True
+source =
+    flake8
+
+
+[paths]
+source =
+    src/flake8
+    .tox/*/lib/python*/site-packages/flake8
+    .tox/pypy/site-packages/flake8
diff --git a/.gitignore b/.gitignore
index baf560dd..fe893621 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,4 @@ dist
 *.sw*
 *.log
 docs/build/html/*
+.coverage
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 23c2f677..74462631 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -10,6 +10,10 @@ before_script:
 - python get-pip.py
 - pip install -r dev-requirements.txt
 
+after_script:
+- pip install codecov
+- codecov --token=7d117e6b-aab6-4283-ab19-166dafc38cf5
+
 python2:
   image: python:2.7
   stage: test
diff --git a/codecov.yml b/codecov.yml
new file mode 100644
index 00000000..4098f518
--- /dev/null
+++ b/codecov.yml
@@ -0,0 +1,43 @@
+codecov:
+  branch: master
+  bot: null
+
+coverage:
+  precision: 2
+  round: down
+  range: "60...100"
+
+  notify:
+    irc:
+      default:
+        server: chat.freenode.net
+        channel: '##python-code-quality'
+        branches: master
+        threshold: 2
+        message: null
+
+  status:
+    project:
+      default:
+        target: auto
+        threshold: null
+        branches: null
+
+    patch:
+      default:
+        target: auto
+        branches: null
+
+    changes:
+      default:
+        branches: null
+
+  ignore: null
+  fixes:
+    - .tox
+
+comment:
+  layout: "header, diff, changes, sunburst, uncovered, tree"
+  branches: null
+  behavior: default
+
diff --git a/tox.ini b/tox.ini
index 1b1895d2..d1f515b7 100644
--- a/tox.ini
+++ b/tox.ini
@@ -6,8 +6,11 @@ envlist = py27,py33,py34,py35,flake8,linters,docs
 deps =
     mock
     pytest
+    coverage
 commands =
-    py.test {posargs}
+    coverage run --parallel-mode -m pytest {posargs}
+    coverage combine
+    coverage report -m
 
 [testenv:venv]
 deps =