diff --git a/packetary/api.py b/packetary/api.py
index e74d78e..5b8f635 100644
--- a/packetary/api.py
+++ b/packetary/api.py
@@ -19,6 +19,7 @@
 from collections import defaultdict
 import logging
 
+import jsonschema
 import six
 
 from packetary.controllers import RepositoryController
@@ -28,7 +29,8 @@ from packetary.objects import PackageRelation
 from packetary.objects import PackagesForest
 from packetary.objects import PackagesTree
 from packetary.objects.statistics import CopyStatistics
-
+from packetary.schemas import PACKAGE_FILES_SCHEMA
+from packetary.schemas import PACKAGES_SCHEMA
 
 logger = logging.getLogger(__package__)
 
@@ -122,6 +124,7 @@ class RepositoryApi(object):
         :param package_files: The list of URLs of packages
         """
         self._validate_repo_data(repo_data)
+        self._validate_package_files(package_files)
         return self.controller.create_repository(repo_data, package_files)
 
     def get_packages(self, repos_data, requirements_data=None,
@@ -215,7 +218,6 @@ class RepositoryApi(object):
         self._validate_requirements_data(requirements_data)
         result = []
         for r in requirements_data:
-            self._validate_requirements_data(r)
             versions = r.get('versions', None)
             if versions is None:
                 result.append(PackageRelation.from_args((r['name'],)))
@@ -227,9 +229,34 @@ class RepositoryApi(object):
         return result
 
     def _validate_repo_data(self, repo_data):
-        # TODO(bgaifullin) implement me
-        pass
+        schema = self.controller.get_repository_data_schema()
+        self._validate_data(repo_data, schema)
 
     def _validate_requirements_data(self, requirements_data):
-        # TODO(bgaifullin) implement me
-        pass
+        self._validate_data(requirements_data, PACKAGES_SCHEMA)
+
+    def _validate_package_files(self, package_files):
+        self._validate_data(package_files, PACKAGE_FILES_SCHEMA)
+
+    def _validate_data(self, data, schema):
+        """Validate the input data using jsonschema validation.
+
+        :param data: a data to validate represented as a dict
+        :param schema: a schema to validate represented as a dict;
+                       must be in JSON Schema Draft 4 format.
+        """
+        try:
+            jsonschema.validate(data, schema)
+        except jsonschema.ValidationError as e:
+            self._raise_validation_error("data", e.message, e.absolute_path)
+        except jsonschema.SchemaError as e:
+            self._raise_validation_error(
+                "schema", e.message, e.absolute_schema_path
+            )
+
+    @staticmethod
+    def _raise_validation_error(what, details, path):
+        message = "Invalid {0}: {1}.".format(what, details)
+        if path:
+            message = "\n".join((message, "Field: {0}".format(".".join(path))))
+        raise ValueError(message)
diff --git a/packetary/controllers/repository.py b/packetary/controllers/repository.py
index bcc81e5..880a0eb 100644
--- a/packetary/controllers/repository.py
+++ b/packetary/controllers/repository.py
@@ -137,6 +137,13 @@ class RepositoryController(object):
         self.assign_packages(repo, packages)
         return repo
 
+    def get_repository_data_schema(self):
+        """Return jsonschema to validate data for required driver.
+
+        :return : Return a jsonschema represented as a dict
+        """
+        return self.driver.repository_data_schema()
+
     def _copy_packages(self, target, packages, observer):
         with self.context.async_section() as section:
             for package in packages:
diff --git a/packetary/drivers/base.py b/packetary/drivers/base.py
index 7d69387..0a5c421 100644
--- a/packetary/drivers/base.py
+++ b/packetary/drivers/base.py
@@ -111,3 +111,7 @@ class RepositoryDriverBase(object):
         :return: the integer value that is relevant repository`s priority
                  less number means greater priority
         """
+
+    @abc.abstractmethod
+    def get_repository_data_schema(self):
+        """Gets the json scheme for repository data validation."""
diff --git a/packetary/drivers/deb_driver.py b/packetary/drivers/deb_driver.py
index 69275d3..bc5b362 100644
--- a/packetary/drivers/deb_driver.py
+++ b/packetary/drivers/deb_driver.py
@@ -36,6 +36,7 @@ from packetary.objects import FileChecksum
 from packetary.objects import Package
 from packetary.objects import PackageRelation
 from packetary.objects import Repository
+from packetary.schemas import DEB_REPO_SCHEMA
 
 
 _OPERATORS_MAPPING = {
@@ -83,6 +84,9 @@ _checksum_collector = checksum_composite('md5', 'sha1', 'sha256')
 
 
 class DebRepositoryDriver(RepositoryDriverBase):
+    def get_repository_data_schema(self):
+        return DEB_REPO_SCHEMA
+
     def priority_sort(self, repo_data):
         # DEB repository expects general values from 0 to 1000. 0
         # to have lowest priority and 1000 -- the highest. Note that a
@@ -94,7 +98,7 @@ class DebRepositoryDriver(RepositoryDriverBase):
         return -priority
 
     def get_repository(self, connection, repository_data, arch, consumer):
-        url = utils.normalize_repository_url(repository_data['url'])
+        url = utils.normalize_repository_url(repository_data['uri'])
         suite = repository_data['suite']
         components = repository_data.get('section')
         path = repository_data.get('path')
@@ -202,7 +206,7 @@ class DebRepositoryDriver(RepositoryDriverBase):
         return new_repo
 
     def create_repository(self, repository_data, arch):
-        url = utils.normalize_repository_url(repository_data['url'])
+        url = utils.normalize_repository_url(repository_data['uri'])
         suite = repository_data['suite']
         component = repository_data.get('section')
         path = repository_data.get('path')
diff --git a/packetary/drivers/rpm_driver.py b/packetary/drivers/rpm_driver.py
index 6464529..5752d75 100644
--- a/packetary/drivers/rpm_driver.py
+++ b/packetary/drivers/rpm_driver.py
@@ -36,6 +36,7 @@ from packetary.objects import PackageRelation
 from packetary.objects import PackageVersion
 from packetary.objects import Repository
 from packetary.objects import VersionRange
+from packetary.schemas import RPM_REPO_SCHEMA
 
 
 urljoin = six.moves.urllib.parse.urljoin
@@ -86,6 +87,9 @@ class CreaterepoCallBack(object):
 
 
 class RpmRepositoryDriver(RepositoryDriverBase):
+    def get_repository_data_schema(self):
+        return RPM_REPO_SCHEMA
+
     def priority_sort(self, repo_data):
         # DEB repository expects general values from 0 to 1000. 0
         # to have lowest priority and 1000 -- the highest. Note that a
@@ -99,7 +103,7 @@ class RpmRepositoryDriver(RepositoryDriverBase):
     def get_repository(self, connection, repository_data, arch, consumer):
         consumer(Repository(
             name=repository_data['name'],
-            url=utils.normalize_repository_url(repository_data["url"]),
+            url=utils.normalize_repository_url(repository_data["uri"]),
             architecture=arch,
             origin=""
         ))
@@ -195,7 +199,7 @@ class RpmRepositoryDriver(RepositoryDriverBase):
     def create_repository(self, repository_data, arch):
         repository = Repository(
             name=repository_data['name'],
-            url=utils.normalize_repository_url(repository_data["url"]),
+            url=utils.normalize_repository_url(repository_data["uri"]),
             architecture=arch,
             origin=repository_data.get('origin')
         )
diff --git a/packetary/schemas/__init__.py b/packetary/schemas/__init__.py
new file mode 100644
index 0000000..ab1922c
--- /dev/null
+++ b/packetary/schemas/__init__.py
@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+
+#    Copyright 2016 Mirantis, Inc.
+#
+#    This program is free software; you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation; either version 2 of the License, or
+#    (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License along
+#    with this program; if not, write to the Free Software Foundation, Inc.,
+#    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+from packetary.schemas.deb_repo_schema import DEB_REPO_SCHEMA
+from packetary.schemas.package_files_schema import PACKAGE_FILES_SCHEMA
+from packetary.schemas.packages_schema import PACKAGES_SCHEMA
+from packetary.schemas.rpm_repo_schema import RPM_REPO_SCHEMA
+
+__all__ = [
+    "DEB_REPO_SCHEMA",
+    "PACKAGES_SCHEMA",
+    "RPM_REPO_SCHEMA",
+    "PACKAGE_FILES_SCHEMA"
+]
diff --git a/packetary/schemas/deb_repo_schema.py b/packetary/schemas/deb_repo_schema.py
new file mode 100644
index 0000000..feee5b4
--- /dev/null
+++ b/packetary/schemas/deb_repo_schema.py
@@ -0,0 +1,56 @@
+# -*- coding: utf-8 -*-
+
+#    Copyright 2016 Mirantis, Inc.
+#
+#    This program is free software; you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation; either version 2 of the License, or
+#    (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License along
+#    with this program; if not, write to the Free Software Foundation, Inc.,
+#    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+DEB_REPO_SCHEMA = {
+    "$schema": "http://json-schema.org/draft-04/schema#",
+    "type": "object",
+    "required": [
+        "name",
+        "uri",
+        "suite",
+    ],
+    "properties": {
+        "name": {
+            "type": "string"
+        },
+        "uri": {
+            "type": "string"
+        },
+        "path": {
+            "type": "string"
+        },
+        "priority": {
+            "anyOf": [
+                {
+                    "type": "number",
+                    "minimum": 0,
+                },
+                {
+                    "type": "null"
+                }
+            ]
+        },
+        "suite": {
+            "type": "string"
+        },
+        "section": {
+            "type": "array",
+            "items": {"type": "string"}
+        }
+    }
+}
diff --git a/packetary/schemas/package_files_schema.py b/packetary/schemas/package_files_schema.py
new file mode 100644
index 0000000..2120fed
--- /dev/null
+++ b/packetary/schemas/package_files_schema.py
@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+
+#    Copyright 2016 Mirantis, Inc.
+#
+#    This program is free software; you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation; either version 2 of the License, or
+#    (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License along
+#    with this program; if not, write to the Free Software Foundation, Inc.,
+#    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+PACKAGE_FILES_SCHEMA = {
+    "$schema": "http://json-schema.org/draft-04/schema#",
+    "type": "array",
+    "items": {
+        "type": "string",
+        "pattern": "^(\/|file:\/\/|https?:\/\/).+$"
+    }
+}
diff --git a/packetary/schemas/packages_schema.py b/packetary/schemas/packages_schema.py
new file mode 100644
index 0000000..8d3c126
--- /dev/null
+++ b/packetary/schemas/packages_schema.py
@@ -0,0 +1,43 @@
+# -*- coding: utf-8 -*-
+
+#    Copyright 2016 Mirantis, Inc.
+#
+#    This program is free software; you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation; either version 2 of the License, or
+#    (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License along
+#    with this program; if not, write to the Free Software Foundation, Inc.,
+#    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+PACKAGES_SCHEMA = {
+    "$schema": "http://json-schema.org/draft-04/schema#",
+    "type": "array",
+    "items": {
+        "type": "object",
+        "required": [
+            "name",
+            "versions"
+        ],
+        "properties": {
+            "name": {
+                "type": "string"
+            },
+            "versions": {
+                "type": "array",
+                "items": [
+                    {
+                        "type": "string",
+                        "pattern": "^([<>]=?|=)\s+.+$"
+                    }
+                ]
+            }
+        }
+    }
+}
diff --git a/packetary/schemas/rpm_repo_schema.py b/packetary/schemas/rpm_repo_schema.py
new file mode 100644
index 0000000..0a051f9
--- /dev/null
+++ b/packetary/schemas/rpm_repo_schema.py
@@ -0,0 +1,49 @@
+# -*- coding: utf-8 -*-
+
+#    Copyright 2016 Mirantis, Inc.
+#
+#    This program is free software; you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation; either version 2 of the License, or
+#    (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License along
+#    with this program; if not, write to the Free Software Foundation, Inc.,
+#    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+RPM_REPO_SCHEMA = {
+    "$schema": "http://json-schema.org/draft-04/schema#",
+    "type": "object",
+    "required": [
+        "name",
+        "uri",
+    ],
+    "properties": {
+        "name": {
+            "type": "string"
+        },
+        "uri": {
+            "type": "string"
+        },
+        "path": {
+            "type": "string"
+        },
+        "priority": {
+            "anyOf": [
+                {
+                    "type": "number",
+                    "minimum": 1,
+                    "maximum": 99,
+                },
+                {
+                    "type": "null"
+                }
+            ]
+        }
+    }
+}
diff --git a/packetary/tests/base.py b/packetary/tests/base.py
index 39e73fd..7ee48bb 100644
--- a/packetary/tests/base.py
+++ b/packetary/tests/base.py
@@ -31,3 +31,9 @@ class TestCase(unittest.TestCase):
             assertion(
                 exp, method(*value), "{0} != f({1})".format(exp, value)
             )
+
+    def assertNotRaises(self, exception, method, *args, **kwargs):
+        try:
+            method(*args, **kwargs)
+        except exception as e:
+            self.fail("Unexpected error: {0}".format(e))
diff --git a/packetary/tests/stubs/generator.py b/packetary/tests/stubs/generator.py
index 28535fb..1218b5a 100644
--- a/packetary/tests/stubs/generator.py
+++ b/packetary/tests/stubs/generator.py
@@ -22,6 +22,7 @@ from packetary import objects
 def gen_repository(name="test", url="file:///test",
                    architecture="x86_64", origin="Test", **kwargs):
     """Helper to create Repository object with default attributes."""
+    url = kwargs.pop("uri", url)
     return objects.Repository(name, url, architecture, origin, **kwargs)
 
 
diff --git a/packetary/tests/test_deb_driver.py b/packetary/tests/test_deb_driver.py
index c22630d..b6be505 100644
--- a/packetary/tests/test_deb_driver.py
+++ b/packetary/tests/test_deb_driver.py
@@ -21,6 +21,7 @@ import os.path as path
 import six
 
 from packetary.drivers import deb_driver
+from packetary.schemas import DEB_REPO_SCHEMA
 from packetary.tests import base
 from packetary.tests.stubs.generator import gen_package
 from packetary.tests.stubs.generator import gen_repository
@@ -66,7 +67,7 @@ class TestDebDriver(base.TestCase):
     def test_get_repository(self):
         repos = []
         repo_data = {
-            "name": "repo1", "url": "http://host", "suite": "trusty",
+            "name": "repo1", "uri": "http://host", "suite": "trusty",
             "section": ["main", "universe"], "path": "my_path"
         }
         self.connection.open_stream.return_value = {"Origin": "Ubuntu"}
@@ -99,7 +100,7 @@ class TestDebDriver(base.TestCase):
 
     def test_get_repository_if_release_does_not_exist(self):
         repo_data = {
-            "name": "repo1", "url": "http://host", "suite": "trusty",
+            "name": "repo1", "uri": "http://host", "suite": "trusty",
             "section": ["main"], "path": "my_path"
         }
         repos = []
@@ -115,7 +116,7 @@ class TestDebDriver(base.TestCase):
 
     def test_get_repository_fail_if_error(self):
         repo_data = {
-            "name": "repo1", "url": "http://host", "suite": "trusty",
+            "name": "repo1", "uri": "http://host", "suite": "trusty",
             "section": ["main"], "path": "my_path"
         }
         repos = []
@@ -132,7 +133,7 @@ class TestDebDriver(base.TestCase):
         with self.assertRaisesRegexp(ValueError, "does not supported"):
             self.driver.get_repository(
                 self.connection,
-                {"url": "http://host", "suite": "trusty"},
+                {"uri": "http://host", "suite": "trusty"},
                 "x86_64",
                 lambda x: None
             )
@@ -313,14 +314,14 @@ class TestDebDriver(base.TestCase):
     @mock.patch("packetary.drivers.deb_driver.utils.ensure_dir_exist")
     def test_create_repository(self, mkdir_mock, deb822, gzip, open, os):
         repository_data = {
-            "name": "Test", "url": "file:///repo", "suite": "trusty",
+            "name": "Test", "uri": "file:///repo", "suite": "trusty",
             "section": "main", "type": "rpm", "priority": "100",
             "origin": "Origin", "path": "/repo"
         }
         repo = self.driver.create_repository(repository_data, "x86_64")
         self.assertEqual(repository_data["name"], repo.name)
         self.assertEqual("x86_64", repo.architecture)
-        self.assertEqual(repository_data["url"] + "/", repo.url)
+        self.assertEqual(repository_data["uri"] + "/", repo.url)
         self.assertEqual(repository_data["origin"], repo.origin)
         self.assertEqual(
             (repository_data["suite"], repository_data["section"]),
@@ -340,7 +341,7 @@ class TestDebDriver(base.TestCase):
 
     def test_createrepository_fails_if_invalid_data(self):
         repository_data = {
-            "name": "Test", "url": "file:///repo", "suite": "trusty",
+            "name": "Test", "uri": "file:///repo", "suite": "trusty",
             "type": "rpm", "priority": "100",
             "origin": "Origin", "path": "/repo"
         }
@@ -397,3 +398,7 @@ class TestDebDriver(base.TestCase):
         )
         rel_path = self.driver.get_relative_path(repo, "test.pkg")
         self.assertEqual("pool/main/t/test.pkg", rel_path)
+
+    def test_get_repository_data_scheme(self):
+        schema = self.driver.get_repository_data_schema()
+        self.assertIs(DEB_REPO_SCHEMA, schema)
diff --git a/packetary/tests/test_repository_api.py b/packetary/tests/test_repository_api.py
index 84d7a4a..798d539 100644
--- a/packetary/tests/test_repository_api.py
+++ b/packetary/tests/test_repository_api.py
@@ -19,21 +19,31 @@
 import copy
 import mock
 
+import jsonschema
+
 from packetary.api import Configuration
 from packetary.api import Context
 from packetary.api import RepositoryApi
+from packetary.schemas import PACKAGE_FILES_SCHEMA
+from packetary.schemas import PACKAGES_SCHEMA
 from packetary.tests import base
 from packetary.tests.stubs import generator
 from packetary.tests.stubs.helpers import CallbacksAdapter
 
 
+@mock.patch("packetary.api.jsonschema")
 class TestRepositoryApi(base.TestCase):
     def setUp(self):
         self.controller = CallbacksAdapter()
         self.api = RepositoryApi(self.controller)
-        self.repo_data = {"name": "repo1", "url": "file:///repo1"}
+        self.repo_data = {"name": "repo1", "uri": "file:///repo1"}
+        self.requirements_data = [
+            {"name": "test1"}, {"name": "test2", "versions": ["< 3", "> 1"]}
+        ]
+        self.schema = {}
         self.repo = generator.gen_repository(**self.repo_data)
         self.controller.load_repositories.return_value = [self.repo]
+        self.controller.get_repository_data_schema.return_value = self.schema
         self._generate_packages()
 
     def _generate_packages(self):
@@ -56,7 +66,8 @@ class TestRepositoryApi(base.TestCase):
 
     @mock.patch("packetary.api.RepositoryController")
     @mock.patch("packetary.api.ConnectionsManager")
-    def test_create_with_config(self, connection_mock, controller_mock):
+    def test_create_with_config(self, connection_mock, controller_mock,
+                                jsonschema_mock):
         config = Configuration(
             http_proxy="http://localhost", https_proxy="https://localhost",
             retries_num=10, retry_interval=1, threads_num=8,
@@ -75,7 +86,8 @@ class TestRepositoryApi(base.TestCase):
 
     @mock.patch("packetary.api.RepositoryController")
     @mock.patch("packetary.api.ConnectionsManager")
-    def test_create_with_context(self, connection_mock, controller_mock):
+    def test_create_with_context(self, connection_mock, controller_mock,
+                                 jsonschema_mock):
         config = Configuration(
             http_proxy="http://localhost", https_proxy="https://localhost",
             retries_num=10, retry_interval=1, threads_num=8,
@@ -93,42 +105,67 @@ class TestRepositoryApi(base.TestCase):
             context, "deb", "x86_64"
         )
 
-    def test_create_repository(self):
+    def test_create_repository(self, jsonschema_mock):
         file_urls = ["file://test1.pkg"]
         self.api.create_repository(self.repo_data, file_urls)
         self.controller.create_repository.assert_called_once_with(
             self.repo_data, file_urls
         )
+        jsonschema_mock.validate.assert_has_calls(
+            [
+                mock.call(self.repo_data, self.schema),
+                mock.call(file_urls, PACKAGE_FILES_SCHEMA),
+            ]
+        )
 
-    def test_get_packages_as_is(self):
+    def test_get_packages_as_is(self, jsonschema_mock):
         packages = self.api.get_packages([self.repo_data], None)
         self.assertEqual(5, len(packages))
         self.assertItemsEqual(
             self.packages,
             packages
         )
+        jsonschema_mock.validate.assert_called_once_with(
+            self.repo_data, self.schema
+        )
 
-    def test_get_packages_by_requirements_with_mandatory(self):
+    def test_get_packages_by_requirements_with_mandatory(self,
+                                                         jsonschema_mock):
+        requirements = [{"name": "package1"}]
         packages = self.api.get_packages(
-            [self.repo_data], [{"name": "package1"}], True
+            [self.repo_data], requirements, True
         )
         self.assertEqual(3, len(packages))
         self.assertItemsEqual(
             ["package1", "package2", "package3"],
             (x.name for x in packages)
         )
+        jsonschema_mock.validate.assert_has_calls(
+            [
+                mock.call(self.repo_data, self.schema),
+                mock.call(requirements, PACKAGES_SCHEMA),
+            ]
+        )
 
-    def test_get_packages_by_requirements_without_mandatory(self):
+    def test_get_packages_by_requirements_without_mandatory(self,
+                                                            jsonschema_mock):
+        requirements = [{"name": "package4"}]
         packages = self.api.get_packages(
-            [self.repo_data], [{"name": "package4"}], False
+            [self.repo_data], requirements, False
         )
         self.assertEqual(2, len(packages))
         self.assertItemsEqual(
             ["package1", "package4"],
             (x.name for x in packages)
         )
+        jsonschema_mock.validate.assert_has_calls(
+            [
+                mock.call(self.repo_data, self.schema),
+                mock.call(requirements, PACKAGES_SCHEMA),
+            ]
+        )
 
-    def test_clone_repositories_as_is(self):
+    def test_clone_repositories_as_is(self, jsonschema_mock):
         # return value is used as statistics
         mirror = copy.copy(self.repo)
         mirror.url = "file:///mirror/repo"
@@ -143,15 +180,19 @@ class TestRepositoryApi(base.TestCase):
         )
         self.assertEqual(6, stats.total)
         self.assertEqual(4, stats.copied)
+        jsonschema_mock.validate.assert_called_once_with(
+            self.repo_data, self.schema
+        )
 
-    def test_clone_by_requirements_with_mandatory(self):
+    def test_clone_by_requirements_with_mandatory(self, jsonschema_mock):
         # return value is used as statistics
         mirror = copy.copy(self.repo)
         mirror.url = "file:///mirror/repo"
+        requirements = [{"name": "package1"}]
         self.controller.fork_repository.return_value = mirror
         self.controller.assign_packages.return_value = [0, 1, 1]
         stats = self.api.clone_repositories(
-            [self.repo_data], [{"name": "package1"}],
+            [self.repo_data], requirements,
             "/mirror", include_mandatory=True
         )
         packages = {self.packages[0], self.packages[1], self.packages[2]}
@@ -163,15 +204,23 @@ class TestRepositoryApi(base.TestCase):
         )
         self.assertEqual(3, stats.total)
         self.assertEqual(2, stats.copied)
+        jsonschema_mock.validate.assert_has_calls(
+            [
+                mock.call(self.repo_data, self.schema),
+                mock.call(requirements, PACKAGES_SCHEMA),
+            ]
+        )
 
-    def test_clone_by_requirements_without_mandatory(self):
+    def test_clone_by_requirements_without_mandatory(self,
+                                                     jsonschema_mock):
         # return value is used as statistics
         mirror = copy.copy(self.repo)
         mirror.url = "file:///mirror/repo"
+        requirements = [{"name": "package4"}]
         self.controller.fork_repository.return_value = mirror
         self.controller.assign_packages.return_value = [0, 4]
         stats = self.api.clone_repositories(
-            [self.repo_data], [{"name": "package4"}],
+            [self.repo_data], requirements,
             "/mirror", include_mandatory=False
         )
         packages = {self.packages[0], self.packages[3]}
@@ -183,30 +232,65 @@ class TestRepositoryApi(base.TestCase):
         )
         self.assertEqual(2, stats.total)
         self.assertEqual(1, stats.copied)
+        jsonschema_mock.validate.assert_has_calls(
+            [
+                mock.call(self.repo_data, self.schema),
+                mock.call(requirements, PACKAGES_SCHEMA),
+            ]
+        )
 
-    def test_get_unresolved(self):
+    def test_get_unresolved(self, jsonschema_mock):
         unresolved = self.api.get_unresolved_dependencies([self.repo_data])
         self.assertItemsEqual(["package6"], (x.name for x in unresolved))
+        jsonschema_mock.validate.assert_called_once_with(
+            self.repo_data, self.schema
+        )
 
-    def test_load_requirements(self):
+    def test_load_requirements(self, jsonschema_mock):
         expected = {
             generator.gen_relation("test1"),
             generator.gen_relation("test2", ["<", "3"]),
             generator.gen_relation("test2", [">", "1"]),
         }
         actual = set(self.api._load_requirements(
-            [{"name": "test1"}, {"name": "test2", "versions": ["< 3", "> 1"]}]
+            self.requirements_data
         ))
         self.assertEqual(expected, actual)
         self.assertIsNone(self.api._load_requirements(None))
+        jsonschema_mock.validate.assert_called_once_with(
+            self.requirements_data,
+            PACKAGES_SCHEMA
+        )
 
-    def test_validate_repo_data(self):
-        # TODO(bgaifullin) implement me
-        pass
+    def test_validate_data(self, jsonschema_mock):
+        self.api._validate_data(self.repo_data, self.schema)
+        jsonschema_mock.validate.assert_called_once_with(
+            self.repo_data, self.schema
+        )
 
-    def test_validate_requirements_data(self):
-        # TODO(bgaifullin) implement me
-        pass
+    def test_validate_invalid_data(self, jschema_m):
+        jschema_m.ValidationError = jsonschema.ValidationError
+        jschema_m.SchemaError = jsonschema.SchemaError
+
+        paths = [("a", "b"), ()]
+        for path in paths:
+            msg = "Invalid data: error."
+            details = "\nField: {0}".format(".".join(path)) if path else ""
+            with self.assertRaisesRegexp(ValueError, msg + details):
+                jschema_m.validate.side_effect = jsonschema.ValidationError(
+                    "error", path=path
+                )
+                self.api._validate_data([], {})
+            jschema_m.validate.assert_called_with([], {})
+            jschema_m.validate.reset_mock()
+
+            msg = "Invalid schema: error."
+            with self.assertRaisesRegexp(ValueError, msg + details):
+                jschema_m.validate.side_effect = jsonschema.SchemaError(
+                    "error", schema_path=path
+                )
+                self.api._validate_data([], {})
+            jschema_m.validate.assert_called_with([], {})
 
 
 class TestContext(base.TestCase):
diff --git a/packetary/tests/test_repository_contoller.py b/packetary/tests/test_repository_contoller.py
index e59bfda..db83b15 100644
--- a/packetary/tests/test_repository_contoller.py
+++ b/packetary/tests/test_repository_contoller.py
@@ -53,7 +53,7 @@ class TestRepositoryController(base.TestCase):
         self.assertIs(self.driver, controller.driver)
 
     def test_load_repositories(self):
-        repo_data = {"name": "test", "url": "file:///test1"}
+        repo_data = {"name": "test", "uri": "file:///test1"}
         repo = gen_repository(**repo_data)
         self.driver.get_repository = CallbacksAdapter()
         self.driver.get_repository.side_effect = [repo]
@@ -150,7 +150,7 @@ class TestRepositoryController(base.TestCase):
 
     def test_create_repository(self):
         repository_data = {
-            "name": "Test", "url": "file:///repo/",
+            "name": "Test", "uri": "file:///repo/",
             "section": ("trusty", "main"), "origin": "Test"
         }
         repo = gen_repository(**repository_data)
diff --git a/packetary/tests/test_rpm_driver.py b/packetary/tests/test_rpm_driver.py
index 3a98953..07d9296 100644
--- a/packetary/tests/test_rpm_driver.py
+++ b/packetary/tests/test_rpm_driver.py
@@ -23,6 +23,7 @@ import sys
 import six
 
 from packetary.objects import FileChecksum
+from packetary.schemas import RPM_REPO_SCHEMA
 from packetary.tests import base
 from packetary.tests.stubs.generator import gen_repository
 from packetary.tests.stubs.helpers import get_compressed
@@ -68,7 +69,7 @@ class TestRpmDriver(base.TestCase):
 
     def test_get_repository(self):
         repos = []
-        repo_data = {"name": "os", "url": "http://host/centos/os/x86_64/"}
+        repo_data = {"name": "os", "uri": "http://host/centos/os/x86_64/"}
         self.driver.get_repository(
             self.connection,
             repo_data,
@@ -220,13 +221,13 @@ class TestRpmDriver(base.TestCase):
     @mock.patch("packetary.drivers.rpm_driver.utils.ensure_dir_exist")
     def test_create_repository(self, ensure_dir_exists_mock):
         repository_data = {
-            "name": "Test", "url": "file:///repo/os/x86_64", "origin": "Test"
+            "name": "Test", "uri": "file:///repo/os/x86_64", "origin": "Test"
         }
         repo = self.driver.create_repository(repository_data, "x86_64")
         ensure_dir_exists_mock.assert_called_once_with("/repo/os/x86_64/")
         self.assertEqual(repository_data["name"], repo.name)
         self.assertEqual("x86_64", repo.architecture)
-        self.assertEqual(repository_data["url"] + "/", repo.url)
+        self.assertEqual(repository_data["uri"] + "/", repo.url)
         self.assertEqual(repository_data["origin"], repo.origin)
 
     @mock.patch("packetary.drivers.rpm_driver.utils")
@@ -278,3 +279,7 @@ class TestRpmDriver(base.TestCase):
         )
         rel_path = self.driver.get_relative_path(repo, "test.pkg")
         self.assertEqual("packages/test.pkg", rel_path)
+
+    def test_get_repository_data_schema(self):
+        schema = self.driver.get_repository_data_schema()
+        self.assertIs(RPM_REPO_SCHEMA, schema)
diff --git a/packetary/tests/test_schemas.py b/packetary/tests/test_schemas.py
new file mode 100644
index 0000000..f8d740e
--- /dev/null
+++ b/packetary/tests/test_schemas.py
@@ -0,0 +1,287 @@
+# -*- coding: utf-8 -*-
+
+#    Copyright 2016 Mirantis, Inc.
+#
+#    This program is free software; you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation; either version 2 of the License, or
+#    (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License along
+#    with this program; if not, write to the Free Software Foundation, Inc.,
+#    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+import jsonschema
+
+from packetary.schemas import DEB_REPO_SCHEMA
+from packetary.schemas import PACKAGE_FILES_SCHEMA
+from packetary.schemas import PACKAGES_SCHEMA
+from packetary.schemas import RPM_REPO_SCHEMA
+from packetary.tests import base
+
+
+class TestRepositorySchemaBase(base.TestCase):
+    def check_invalid_name(self):
+        self._check_invalid_type('name')
+
+    def check_invalid_uri(self):
+        self._check_invalid_type('uri')
+
+    def check_invalid_path(self):
+        self._check_invalid_type('path')
+
+    def check_required_properties(self):
+        repos_data = [{"name": "os"}, {"uri": "file:///repo"}]
+        for data in repos_data:
+            self.assertRaisesRegexp(
+                jsonschema.ValidationError,
+                "is a required property",
+                jsonschema.validate, data, self.schema
+            )
+
+    def check_priority(self, min_value=None, max_value=None):
+        if min_value is not None:
+            self._check_invalid_priority(min_value - 1)
+            self._check_valid_priority(min_value)
+        if max_value is not None:
+            self._check_invalid_priority(max_value + 1)
+            self._check_valid_priority(max_value)
+        self._check_valid_priority(None)
+        self._check_invalid_priority("abc")
+
+    def _check_invalid_type(self, key):
+        invalid_data = {key: 123}
+        self.assertRaisesRegexp(
+            jsonschema.ValidationError, "123 is not of type 'string'",
+            jsonschema.validate, invalid_data[key],
+            self.schema['properties'][key]
+        )
+
+    def _check_valid_priority(self, value):
+        self.assertNotRaises(
+            jsonschema.ValidationError, jsonschema.validate, value,
+            self.schema['properties']['priority']
+        )
+
+    def _check_invalid_priority(self, value):
+        self.assertRaisesRegexp(
+            jsonschema.ValidationError,
+            "is not valid under any of the given schemas",
+            jsonschema.validate, value, self.schema['properties']['priority']
+        )
+
+
+class TestDebRepoSchema(TestRepositorySchemaBase):
+    def setUp(self):
+        self.schema = DEB_REPO_SCHEMA
+
+    def test_valid_repo_data(self):
+        repo_data = {
+            "name": "os", "uri": "file:///repo", "suite": "trusty",
+            "section": ["main", "multiverse"], "path": "/some/path",
+            "priority": 1001
+        }
+        self.assertNotRaises(
+            jsonschema.ValidationError, jsonschema.validate,
+            repo_data, self.schema
+        )
+
+    def test_priority(self):
+        self.check_priority(0)
+
+    def test_validation_fail_for_required_properties(self):
+        self.check_required_properties()
+
+        repo_data = {"name": "os", "uri": "file:///repo"}
+        self.assertRaisesRegexp(
+            jsonschema.ValidationError, "'suite' is a required property",
+            jsonschema.validate, repo_data, self.schema
+        )
+
+    def test_validation_fail_if_name_is_invalid(self):
+        self.check_invalid_name()
+
+    def test_validation_fail_if_uri_is_invalid(self):
+        self.check_invalid_uri()
+
+    def test_validation_fail_if_path_is_invalid(self):
+        self.check_invalid_path()
+
+    def test_validation_fail_if_suite_is_invalid(self):
+        repo_data = {"name": "os", "uri": "file:///repo", "suite": 123}
+        self.assertRaisesRegexp(
+            jsonschema.ValidationError, "123 is not of type 'string'",
+            jsonschema.validate, repo_data, self.schema
+        )
+
+    def test_validation_fail_if_section_not_array(self):
+        repo_data = {
+            "name": "os", "uri": "file:///repo", "suite": "trusty",
+            "section": 123
+        }
+        self.assertRaisesRegexp(
+            jsonschema.ValidationError, "123 is not of type 'array'",
+            jsonschema.validate, repo_data, self.schema
+        )
+
+    def test_validation_fail_if_section_not_string(self):
+        repo_data = {
+            "name": "os", "uri": "file:///repo", "suite": "trusty",
+            "section": [123]
+        }
+        self.assertRaisesRegexp(
+            jsonschema.ValidationError, "123 is not of type 'string'",
+            jsonschema.validate, repo_data, self.schema
+        )
+
+
+class TestRpmRepoSchema(TestRepositorySchemaBase):
+    def setUp(self):
+        self.schema = RPM_REPO_SCHEMA
+
+    def test_valid_repo_data(self):
+        repo_data = {
+            "name": "os", "uri": "file:///repo", "path": "/some/path",
+            "priority": 45
+        }
+        self.assertNotRaises(
+            jsonschema.ValidationError, jsonschema.validate, repo_data,
+            self.schema
+        )
+
+    def test_priority(self):
+        self.check_priority(1, 99)
+
+    def test_validation_fail_for_required_properties(self):
+        self.check_required_properties()
+
+    def test_validation_fail_if_name_is_invalid(self):
+        self.check_invalid_name()
+
+    def test_validation_fail_if_uri_is_invalid(self):
+        self.check_invalid_uri()
+
+    def test_validation_fail_if_path_is_invalid(self):
+        self.check_invalid_path()
+
+
+class TestPackagesSchema(base.TestCase):
+    def setUp(self):
+        self.schema = PACKAGES_SCHEMA
+
+    def test_valid_requirements_data(self):
+        requirements_data = [
+            {"name": "test1", "versions": [">= 1.1.2", "<= 3"]},
+            {"name": "test2", "versions": ["< 3", "> 1", ">= 4"]},
+            {"name": "test3", "versions": ["= 3"]},
+            {"name": "test4", "versions": ["=     3"]}
+        ]
+        self.assertNotRaises(
+            jsonschema.ValidationError, jsonschema.validate, requirements_data,
+            self.schema
+        )
+
+    def test_validation_fail_for_required_properties(self):
+        requirements_data = [
+            [{"name": "test1"}],
+            [{"versions": ["< 3", "> 1"]}]
+        ]
+        for data in requirements_data:
+            self.assertRaisesRegexp(
+                jsonschema.ValidationError,
+                "is a required property",
+                jsonschema.validate, data, self.schema
+            )
+
+    def test_validation_fail_if_name_is_invalid(self):
+        requirements_data = [
+            {"name": 123, "versions": [">= 1.1.2", "<= 3"]},
+        ]
+        self.assertRaisesRegexp(
+            jsonschema.ValidationError, "123 is not of type 'string'",
+            jsonschema.validate, requirements_data, self.schema
+        )
+
+    def test_validation_fail_if_versions_not_array(self):
+        requirements_data = [
+            {"name": "test1", "versions": 123}
+        ]
+        self.assertRaisesRegexp(
+            jsonschema.ValidationError, "123 is not of type 'array'",
+            jsonschema.validate, requirements_data,
+            self.schema
+        )
+
+    def test_validation_fail_if_versions_not_string(self):
+        requirements_data = [
+            {"name": "test1", "versions": [123]}
+        ]
+        self.assertRaisesRegexp(
+            jsonschema.ValidationError, "123 is not of type 'string'",
+            jsonschema.validate, requirements_data,
+            self.schema
+        )
+
+    def test_validation_fail_if_versions_not_match(self):
+        versions = [
+            ["1.1.2"],  # relational operator
+            [">=3"],    # not whitespace after ro
+            ["== 3"]    # ==
+        ]
+        for version in versions:
+            self.assertRaisesRegexp(
+                jsonschema.ValidationError, "does not match",
+                jsonschema.validate, version,
+                self.schema['items']['properties']['versions']
+            )
+
+
+class TestPackageFilesSchema(base.TestCase):
+    def setUp(self):
+        self.schema = PACKAGE_FILES_SCHEMA
+
+    def test_valid_file_urls(self):
+        file_urls = [
+            "file://test1.pkg",
+            "file:///test2.pkg",
+            "/test3.pkg",
+            "http://test4.pkg",
+            "https://test5.pkg"
+        ]
+        self.assertNotRaises(
+            jsonschema.ValidationError, jsonschema.validate, file_urls,
+            self.schema
+        )
+
+    def test_validation_fail_if_urls_not_array(self):
+        file_urls = "/test1.pkg"
+        self.assertRaisesRegexp(
+            jsonschema.ValidationError, "'/test1.pkg' is not of type 'array'",
+            jsonschema.validate, file_urls, self.schema
+        )
+
+    def test_validation_fail_if_urls_not_string(self):
+        file_urls = [123]
+        self.assertRaisesRegexp(
+            jsonschema.ValidationError, "123 is not of type 'string'",
+            jsonschema.validate, file_urls, self.schema
+        )
+
+    def test_validation_fail_if_invalid_file_urls(self):
+        file_urls = [
+            ["test1.pkg"],        # does not match pattern
+            ["./test2.pkg"],      # does not match pattern
+            ["file//test3.pkg"],  # does not match pattern
+            ["http//test4.pkg"]   # does not match pattern
+        ]
+
+        for url in file_urls[2:]:
+            self.assertRaisesRegexp(
+                jsonschema.ValidationError, "does not match",
+                jsonschema.validate, url, self.schema
+            )
diff --git a/requirements.txt b/requirements.txt
index a369282..a281751 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,3 +12,4 @@ stevedore>=1.1.0
 six>=1.5.2
 python-debian>=0.1.21
 lxml>=3.2
+jsonschema!=2.5.0,<3.0.0,>=2.0.0 # MIT