diff --git a/doc/source/library.rst b/doc/source/library.rst
index 8b263f2..64bd2c2 100644
--- a/doc/source/library.rst
+++ b/doc/source/library.rst
@@ -66,3 +66,4 @@
    library/decorators
    library/rest_client
    library/utils
+   library/api_microversion_testing
diff --git a/doc/source/library/api_microversion_testing.rst b/doc/source/library/api_microversion_testing.rst
new file mode 100644
index 0000000..0d0b595
--- /dev/null
+++ b/doc/source/library/api_microversion_testing.rst
@@ -0,0 +1,29 @@
+.. _api_microversion_testing:
+
+API Microversion Testing Support in Temepst
+===========================================
+
+---------------------------------------------
+Framework to support API Microversion testing
+---------------------------------------------
+
+Many of the OpenStack components have implemented API microversions.
+It is important to tests those microversion in Tempest or external plugins.
+Tempest now provides stable interfaces to support to test the API microversions.
+Based on the microversion range coming from the combination of both configuration
+and each test case, APIs request will be made with selected microversion.
+
+This document explains the interfaces needed for microversion testing.
+
+
+The api_version_request module
+""""""""""""""""""""""""""""""
+
+.. automodule:: tempest.lib.common.api_version_request
+   :members:
+
+The api_version_utils module
+""""""""""""""""""""""""""""
+
+.. automodule:: tempest.lib.common.api_version_utils
+   :members:
diff --git a/releasenotes/notes/api-microversion-testing-support-2ceddd2255670932.yaml b/releasenotes/notes/api-microversion-testing-support-2ceddd2255670932.yaml
new file mode 100644
index 0000000..e98671a
--- /dev/null
+++ b/releasenotes/notes/api-microversion-testing-support-2ceddd2255670932.yaml
@@ -0,0 +1,3 @@
+---
+features:
+  - Tempest library interface addition(API Microversion testing interfaces).
\ No newline at end of file
diff --git a/tempest/api/compute/api_microversion_fixture.py b/tempest/api/compute/api_microversion_fixture.py
index bf4de3e..695af52 100644
--- a/tempest/api/compute/api_microversion_fixture.py
+++ b/tempest/api/compute/api_microversion_fixture.py
@@ -14,7 +14,7 @@
 
 import fixtures
 
-from tempest.services.compute.json import base_compute_client
+from tempest.lib.services.compute import base_compute_client
 
 
 class APIMicroversionFixture(fixtures.Fixture):
diff --git a/tempest/api/compute/base.py b/tempest/api/compute/base.py
index ee21284..f61d2fb 100644
--- a/tempest/api/compute/base.py
+++ b/tempest/api/compute/base.py
@@ -18,12 +18,12 @@
 from oslo_log import log as logging
 
 from tempest.api.compute import api_microversion_fixture
-from tempest.common import api_version_utils
 from tempest.common import compute
 from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
 from tempest import exceptions
+from tempest.lib.common import api_version_utils
 from tempest.lib import exceptions as lib_exc
 import tempest.test
 
diff --git a/tempest/exceptions.py b/tempest/exceptions.py
index 86e8460..031df7f 100644
--- a/tempest/exceptions.py
+++ b/tempest/exceptions.py
@@ -176,20 +176,6 @@
     message = "Invalid structure of table with details"
 
 
-class InvalidAPIVersionString(TempestException):
-    message = ("API Version String %(version)s is of invalid format. Must "
-               "be of format MajorNum.MinorNum or string 'latest'.")
-
-
-class JSONSchemaNotFound(TempestException):
-    message = ("JSON Schema for %(version)s is not found in \n"
-               " %(schema_versions_info)s")
-
-
-class InvalidAPIVersionRange(TempestException):
-    message = ("API Min Version is greater than Max version")
-
-
 class CommandFailed(Exception):
     def __init__(self, returncode, cmd, output, stderr):
         super(CommandFailed, self).__init__()
diff --git a/tempest/common/api_version_request.py b/tempest/lib/common/api_version_request.py
similarity index 92%
rename from tempest/common/api_version_request.py
rename to tempest/lib/common/api_version_request.py
index d8a5b56..b2b68a6 100644
--- a/tempest/common/api_version_request.py
+++ b/tempest/lib/common/api_version_request.py
@@ -14,7 +14,7 @@
 
 import re
 
-from tempest import exceptions
+from tempest.lib import exceptions
 
 
 # Define the minimum and maximum version of the API across all of the
@@ -39,6 +39,11 @@
     This class provides convenience methods for manipulation
     and comparison of version numbers that we need to do to
     implement microversions.
+
+    :param version_string: String representation of APIVersionRequest.
+            Correct format is 'X.Y', where 'X' and 'Y' are int values.
+            None value should be used to create Null APIVersionRequest,
+            which is equal to 0.0
     """
 
     # NOTE: This 'latest' version is a magic number, we assume any
@@ -47,13 +52,7 @@
     latest_ver_minor = 99999
 
     def __init__(self, version_string=None):
-        """Create an API version request object.
-
-        :param version_string: String representation of APIVersionRequest.
-            Correct format is 'X.Y', where 'X' and 'Y' are int values.
-            None value should be used to create Null APIVersionRequest,
-            which is equal to 0.0
-        """
+        """Create an API version request object."""
         # NOTE(gmann): 'version_string' as String "None" will be considered as
         # invalid version string.
         self.ver_major = 0
@@ -77,6 +76,12 @@
         return ("API Version Request: %s" % self.get_string())
 
     def is_null(self):
+        """Checks whether version is null.
+
+        Return True if version object is null otherwise False.
+
+        :returns: boolean
+        """
         return self.ver_major == 0 and self.ver_minor == 0
 
     def _format_type_error(self, other):
@@ -120,9 +125,9 @@
         greater than or equal to the minimum version and less than
         or equal to the maximum version.
 
-        @param min_version: Minimum acceptable version.
-        @param max_version: Maximum acceptable version.
-        @returns: boolean
+        :param min_version: Minimum acceptable version.
+        :param max_version: Maximum acceptable version.
+        :returns: boolean
 
         If min_version is null then there is no minimum limit.
         If max_version is null then there is no maximum limit.
diff --git a/tempest/common/api_version_utils.py b/tempest/lib/common/api_version_utils.py
similarity index 78%
rename from tempest/common/api_version_utils.py
rename to tempest/lib/common/api_version_utils.py
index 7c7e96a..73cd280 100644
--- a/tempest/common/api_version_utils.py
+++ b/tempest/lib/common/api_version_utils.py
@@ -14,8 +14,8 @@
 
 import testtools
 
-from tempest.common import api_version_request
-from tempest import exceptions
+from tempest.lib.common import api_version_request
+from tempest.lib import exceptions
 
 
 LATEST_MICROVERSION = 'latest'
@@ -35,6 +35,20 @@
 
 def check_skip_with_microversion(test_min_version, test_max_version,
                                  cfg_min_version, cfg_max_version):
+    """Checks API microversions range and returns whether test needs to be skip
+
+    Compare the test and configured microversion range and returns
+    whether test microversion range is out of configured one.
+    This method can be used to skip the test based on configured and test
+    microversion range.
+
+    :param test_min_version: Test Minimum Microversion
+    :param test_max_version: Test Maximum Microversion
+    :param cfg_min_version: Configured Minimum Microversion
+    :param cfg_max_version: Configured Maximum Microversion
+    :returns: boolean
+    """
+
     min_version = api_version_request.APIVersionRequest(test_min_version)
     max_version = api_version_request.APIVersionRequest(test_max_version)
     config_min_version = api_version_request.APIVersionRequest(cfg_min_version)
@@ -68,6 +82,16 @@
 
 
 def select_request_microversion(test_min_version, cfg_min_version):
+    """Select microversion from test and configuration.
+
+    Compare requested microversion and return the maximum
+    microversion out of those.
+
+    :param test_min_version: Test Minimum Microversion
+    :param cfg_min_version: Configured Minimum Microversion
+    :returns: Selected microversion string
+    """
+
     test_version = api_version_request.APIVersionRequest(test_min_version)
     cfg_version = api_version_request.APIVersionRequest(cfg_min_version)
     max_version = cfg_version if cfg_version >= test_version else test_version
@@ -82,10 +106,10 @@
     Verify whether microversion is present in response header
     and with specified 'api_microversion' value.
 
-    @param: api_microversion_header_name: Microversion header name
+    :param api_microversion_header_name: Microversion header name
             Example- "X-OpenStack-Nova-API-Version"
-    @param: api_microversion: Microversion number like "2.10"
-    @param: response_header: Response header where microversion is
+    :param api_microversion: Microversion number like "2.10"
+    :param response_header: Response header where microversion is
             expected to be present.
     """
     api_microversion_header_name = api_microversion_header_name.lower()
diff --git a/tempest/lib/exceptions.py b/tempest/lib/exceptions.py
index 2bf7cdd..b9b2ae9 100644
--- a/tempest/lib/exceptions.py
+++ b/tempest/lib/exceptions.py
@@ -153,6 +153,20 @@
     message = "Invalid structure of table with details"
 
 
+class InvalidAPIVersionString(TempestException):
+    message = ("API Version String %(version)s is of invalid format. Must "
+               "be of format MajorNum.MinorNum or string 'latest'.")
+
+
+class JSONSchemaNotFound(TempestException):
+    message = ("JSON Schema for %(version)s is not found in\n"
+               " %(schema_versions_info)s")
+
+
+class InvalidAPIVersionRange(TempestException):
+    message = ("The API version range is invalid.")
+
+
 class BadAltAuth(TempestException):
     """Used when trying and failing to change to alt creds.
 
diff --git a/tempest/services/compute/json/base_compute_client.py b/tempest/lib/services/compute/base_compute_client.py
similarity index 78%
rename from tempest/services/compute/json/base_compute_client.py
rename to tempest/lib/services/compute/base_compute_client.py
index 8cfde4b..bbadc8f 100644
--- a/tempest/services/compute/json/base_compute_client.py
+++ b/tempest/lib/services/compute/base_compute_client.py
@@ -11,16 +11,30 @@
 #    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 #    License for the specific language governing permissions and limitations
 #    under the License.
-from tempest.lib.common import rest_client
 
-from tempest.common import api_version_request
-from tempest.common import api_version_utils
-from tempest import exceptions
+from tempest.lib.common import api_version_request
+from tempest.lib.common import api_version_utils
+from tempest.lib.common import rest_client
+from tempest.lib import exceptions
 
 COMPUTE_MICROVERSION = None
 
 
 class BaseComputeClient(rest_client.RestClient):
+    """Base compute service clients class to support microversion.
+
+    This class adds microversion to API request header if same is set
+    and provide interface to select appropriate JSON schema file for
+    response validation.
+
+    :param auth_provider: an auth provider object used to wrap requests in
+                          auth
+    :param str service: The service name to use for the catalog lookup
+    :param str region: The region to use for the catalog lookup
+                                             request with microversion
+    :param kwargs: kwargs required by rest_client.RestClient
+    """
+
     api_microversion_header_name = 'X-OpenStack-Nova-API-Version'
 
     def __init__(self, auth_provider, service, region,
@@ -50,9 +64,10 @@
         """Get JSON schema
 
         This method provides the matching schema for requested
-        microversion (self.api_microversion).
+        microversion.
+
         :param schema_versions_info: List of dict which provides schema
-        information with range of valid versions.
+                                     information with range of valid versions.
         Example -
         schema_versions_info = [
             {'min': None, 'max': '2.1', 'schema': schemav21},
diff --git a/tempest/services/compute/json/keypairs_client.py b/tempest/services/compute/json/keypairs_client.py
index 045f03c..2af55b2 100644
--- a/tempest/services/compute/json/keypairs_client.py
+++ b/tempest/services/compute/json/keypairs_client.py
@@ -18,7 +18,7 @@
 from tempest.api_schema.response.compute.v2_1 import keypairs as schemav21
 from tempest.api_schema.response.compute.v2_2 import keypairs as schemav22
 from tempest.lib.common import rest_client
-from tempest.services.compute.json import base_compute_client
+from tempest.lib.services.compute import base_compute_client
 
 
 class KeyPairsClient(base_compute_client.BaseComputeClient):
diff --git a/tempest/tests/common/test_api_version_request.py b/tempest/tests/lib/common/test_api_version_request.py
similarity index 97%
rename from tempest/tests/common/test_api_version_request.py
rename to tempest/tests/lib/common/test_api_version_request.py
index 38fbfc1..bdaa936 100644
--- a/tempest/tests/common/test_api_version_request.py
+++ b/tempest/tests/lib/common/test_api_version_request.py
@@ -12,9 +12,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from tempest.common import api_version_request
-from tempest import exceptions
-from tempest.tests import base
+from tempest.lib.common import api_version_request
+from tempest.lib import exceptions
+from tempest.tests.lib import base
 
 
 class APIVersionRequestTests(base.TestCase):
diff --git a/tempest/tests/common/test_api_version_utils.py b/tempest/tests/lib/common/test_api_version_utils.py
similarity index 97%
rename from tempest/tests/common/test_api_version_utils.py
rename to tempest/tests/lib/common/test_api_version_utils.py
index 501f954..591b87e 100644
--- a/tempest/tests/common/test_api_version_utils.py
+++ b/tempest/tests/lib/common/test_api_version_utils.py
@@ -14,9 +14,9 @@
 
 import testtools
 
-from tempest.common import api_version_utils
-from tempest import exceptions
-from tempest.tests import base
+from tempest.lib.common import api_version_utils
+from tempest.lib import exceptions
+from tempest.tests.lib import base
 
 
 class TestVersionSkipLogic(base.TestCase):
diff --git a/tempest/tests/services/compute/test_base_compute_client.py b/tempest/tests/lib/services/compute/test_base_compute_client.py
similarity index 86%
rename from tempest/tests/services/compute/test_base_compute_client.py
rename to tempest/tests/lib/services/compute/test_base_compute_client.py
index 1a78247..f552ef5 100644
--- a/tempest/tests/services/compute/test_base_compute_client.py
+++ b/tempest/tests/lib/services/compute/test_base_compute_client.py
@@ -16,12 +16,11 @@
 import mock
 from oslotest import mockpatch
 
-from tempest.api.compute import api_microversion_fixture
-from tempest import exceptions
 from tempest.lib.common import rest_client
-from tempest.services.compute.json import base_compute_client
-from tempest.tests import fake_auth_provider
-from tempest.tests.services.compute import base
+from tempest.lib import exceptions
+from tempest.lib.services.compute import base_compute_client
+from tempest.tests.lib import fake_auth_provider
+from tempest.tests.lib.services.compute import base
 
 
 class TestMicroversionHeaderCheck(base.BaseComputeServiceTest):
@@ -31,7 +30,11 @@
         fake_auth = fake_auth_provider.FakeAuthProvider()
         self.client = base_compute_client.BaseComputeClient(
             fake_auth, 'compute', 'regionOne')
-        self.useFixture(api_microversion_fixture.APIMicroversionFixture('2.2'))
+        base_compute_client.COMPUTE_MICROVERSION = '2.2'
+
+    def tearDown(self):
+        super(TestMicroversionHeaderCheck, self).tearDown()
+        base_compute_client.COMPUTE_MICROVERSION = None
 
     def _check_microverion_header_in_response(self, fake_response):
         def request(*args, **kwargs):
@@ -77,8 +80,11 @@
         super(TestSchemaVersionsNone, self).setUp()
         fake_auth = fake_auth_provider.FakeAuthProvider()
         self.client = DummyServiceClient1(fake_auth, 'compute', 'regionOne')
-        self.useFixture(api_microversion_fixture.APIMicroversionFixture(
-            self.api_microversion))
+        base_compute_client.COMPUTE_MICROVERSION = self.api_microversion
+
+    def tearDown(self):
+        super(TestSchemaVersionsNone, self).tearDown()
+        base_compute_client.COMPUTE_MICROVERSION = None
 
     def test_schema(self):
         self.assertEqual(self.expected_schema,
@@ -132,8 +138,11 @@
         super(TestSchemaVersionsNotFound, self).setUp()
         fake_auth = fake_auth_provider.FakeAuthProvider()
         self.client = DummyServiceClient2(fake_auth, 'compute', 'regionOne')
-        self.useFixture(api_microversion_fixture.APIMicroversionFixture(
-            self.api_microversion))
+        base_compute_client.COMPUTE_MICROVERSION = self.api_microversion
+
+    def tearDown(self):
+        super(TestSchemaVersionsNotFound, self).tearDown()
+        base_compute_client.COMPUTE_MICROVERSION = None
 
     def test_schema(self):
         self.assertRaises(exceptions.JSONSchemaNotFound,
@@ -170,7 +179,11 @@
         fake_auth = fake_auth_provider.FakeAuthProvider()
         self.client = base_compute_client.BaseComputeClient(
             fake_auth, 'compute', 'regionOne')
-        self.useFixture(api_microversion_fixture.APIMicroversionFixture('2.2'))
+        base_compute_client.COMPUTE_MICROVERSION = '2.2'
+
+    def tearDown(self):
+        super(TestClientWithMicroversionHeader, self).tearDown()
+        base_compute_client.COMPUTE_MICROVERSION = None
 
     def test_microverion_header(self):
         header = self.client.get_headers()
diff --git a/tempest/tests/test_microversions.py b/tempest/tests/test_microversions.py
index 6738641..f19ee49 100644
--- a/tempest/tests/test_microversions.py
+++ b/tempest/tests/test_microversions.py
@@ -17,7 +17,7 @@
 
 from tempest.api.compute import base as compute_base
 from tempest import config
-from tempest import exceptions
+from tempest.lib import exceptions
 from tempest.tests import base
 from tempest.tests import fake_config