diff --git a/cirq-aqt/cirq_aqt/__init__.py b/cirq-aqt/cirq_aqt/__init__.py
index d77c74b54cf..7aad149dda5 100644
--- a/cirq-aqt/cirq_aqt/__init__.py
+++ b/cirq-aqt/cirq_aqt/__init__.py
@@ -12,7 +12,11 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+"""Types and methods related to the AQT ion trap device"""
+
+from cirq_aqt._version import (
+    __version__,
+)
+
 from cirq_aqt.aqt_sampler import AQTSampler, AQTSamplerLocalSimulator
 from cirq_aqt.aqt_device import AQTSimulator
-
-"""Types and methods related to the AQT ion trap device"""
diff --git a/cirq-aqt/cirq_aqt/_version_test.py b/cirq-aqt/cirq_aqt/_version_test.py
new file mode 100644
index 00000000000..41f421ee002
--- /dev/null
+++ b/cirq-aqt/cirq_aqt/_version_test.py
@@ -0,0 +1,5 @@
+import cirq_aqt
+
+
+def test_version():
+    assert cirq_aqt.__version__ == "0.13.0.dev"
diff --git a/cirq-core/cirq/_version_test.py b/cirq-core/cirq/_version_test.py
new file mode 100644
index 00000000000..f508bad208d
--- /dev/null
+++ b/cirq-core/cirq/_version_test.py
@@ -0,0 +1,5 @@
+import cirq
+
+
+def test_version():
+    assert cirq.__version__ == "0.13.0.dev"
diff --git a/cirq-google/cirq_google/__init__.py b/cirq-google/cirq_google/__init__.py
index ee914efdb52..7996c75345d 100644
--- a/cirq-google/cirq_google/__init__.py
+++ b/cirq-google/cirq_google/__init__.py
@@ -16,6 +16,10 @@
 
 from cirq_google import api
 
+from cirq_google._version import (
+    __version__,
+)
+
 from cirq_google.calibration import (
     ALL_ANGLES_FLOQUET_PHASED_FSIM_CHARACTERIZATION,
     CircuitWithCalibration,
diff --git a/cirq-google/cirq_google/_version_test.py b/cirq-google/cirq_google/_version_test.py
new file mode 100644
index 00000000000..74a62cf98ec
--- /dev/null
+++ b/cirq-google/cirq_google/_version_test.py
@@ -0,0 +1,5 @@
+import cirq_google
+
+
+def test_version():
+    assert cirq_google.__version__ == "0.13.0.dev"
diff --git a/cirq-ionq/cirq_ionq/__init__.py b/cirq-ionq/cirq_ionq/__init__.py
index b779248b131..c9799d314a7 100644
--- a/cirq-ionq/cirq_ionq/__init__.py
+++ b/cirq-ionq/cirq_ionq/__init__.py
@@ -12,6 +12,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from cirq_ionq._version import (
+    __version__,
+)
+
 from cirq_ionq.calibration import (
     Calibration,
 )
diff --git a/cirq-ionq/cirq_ionq/_version_test.py b/cirq-ionq/cirq_ionq/_version_test.py
new file mode 100644
index 00000000000..33790053cbf
--- /dev/null
+++ b/cirq-ionq/cirq_ionq/_version_test.py
@@ -0,0 +1,5 @@
+import cirq_ionq
+
+
+def test_version():
+    assert cirq_ionq.__version__ == "0.13.0.dev"
diff --git a/cirq-pasqal/cirq_pasqal/__init__.py b/cirq-pasqal/cirq_pasqal/__init__.py
index ae1121df090..e6b784334fb 100644
--- a/cirq-pasqal/cirq_pasqal/__init__.py
+++ b/cirq-pasqal/cirq_pasqal/__init__.py
@@ -14,6 +14,10 @@
 
 """Devices, qubits, and sampler for Pasqal's neutral atom device."""
 
+from cirq_pasqal._version import (
+    __version__,
+)
+
 from cirq_pasqal.pasqal_qubits import (
     ThreeDQubit,
     TwoDQubit,
diff --git a/cirq-pasqal/cirq_pasqal/_version_test.py b/cirq-pasqal/cirq_pasqal/_version_test.py
new file mode 100644
index 00000000000..380848a5468
--- /dev/null
+++ b/cirq-pasqal/cirq_pasqal/_version_test.py
@@ -0,0 +1,5 @@
+import cirq_pasqal
+
+
+def test_version():
+    assert cirq_pasqal.__version__ == "0.13.0.dev"
diff --git a/cirq-rigetti/cirq_rigetti/__init__.py b/cirq-rigetti/cirq_rigetti/__init__.py
index 725f6df62b5..d9febdb6948 100644
--- a/cirq-rigetti/cirq_rigetti/__init__.py
+++ b/cirq-rigetti/cirq_rigetti/__init__.py
@@ -13,6 +13,11 @@
 #    See the License for the specific language governing permissions and
 #    limitations under the License.
 ##############################################################################
+
+from cirq_rigetti._version import (
+    __version__,
+)
+
 from cirq_rigetti.sampler import (
     RigettiQCSSampler,
     get_rigetti_qcs_sampler,
diff --git a/cirq-rigetti/cirq_rigetti/_version_test.py b/cirq-rigetti/cirq_rigetti/_version_test.py
new file mode 100644
index 00000000000..9f6194f8461
--- /dev/null
+++ b/cirq-rigetti/cirq_rigetti/_version_test.py
@@ -0,0 +1,5 @@
+import cirq_rigetti
+
+
+def test_version():
+    assert cirq_rigetti.__version__ == "0.13.0.dev"
diff --git a/cirq-web/cirq_web/__init__.py b/cirq-web/cirq_web/__init__.py
index a96b4df487e..69fb6af9bae 100644
--- a/cirq-web/cirq_web/__init__.py
+++ b/cirq-web/cirq_web/__init__.py
@@ -12,6 +12,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from cirq_web._version import (
+    __version__,
+)
+
 from cirq_web.widget import Widget
 
 from cirq_web.bloch_sphere import (
diff --git a/cirq-web/cirq_web/_version_test.py b/cirq-web/cirq_web/_version_test.py
new file mode 100644
index 00000000000..ba3314ec899
--- /dev/null
+++ b/cirq-web/cirq_web/_version_test.py
@@ -0,0 +1,5 @@
+import cirq_web
+
+
+def test_version():
+    assert cirq_web.__version__ == "0.13.0.dev"