diff --git a/mackerel/runner.py b/mackerel/runner.py
new file mode 100644
index 0000000..d2568f4
--- /dev/null
+++ b/mackerel/runner.py
@@ -0,0 +1,87 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+"""
+    mackerel.runner
+    ~~~~~~~~~~~~~~~
+
+    Mackerel client implemented by Python.
+
+    Ported from `mackerel-client-ruby`.
+    <https://github.com/mackerelio/mackerel-client-ruby>
+
+    :copyright: (c) 2015 Shinya Ohyanagi, All rights reserved.
+    :license: BSD, see LICENSE for more details.
+"""
+import os
+import logging
+import click
+from mackerel.client import Client
+
+
+class Runner(object):
+
+    def __init__(self, verbose=False):
+        api_key = os.environ.get('MACKEREL_APIKEY')
+        logger = None
+        level = logging.INFO
+        if verbose is True:
+            level = logging.DEBUG
+
+        logging.getLogger('requests').level = logging.ERROR
+        logging.basicConfig(level=level, format=Client.debug_log_format)
+        logger = logging.getLogger('mackerel.client')
+
+        self.client = Client(mackerel_api_key=api_key, logger=logger)
+
+
+@click.group()
+@click.option('--verbose', default=False, type=click.BOOL)
+@click.pass_context
+def cli(ctx, verbose):
+    runner = Runner(verbose)
+    ctx.obj['instance'] = runner
+
+
+@cli.command()
+@click.option('--host-id', default=None)
+@click.option('--status', default=None)
+@click.pass_context
+def status(ctx, host_id, status):
+    runner = ctx.obj['instance']
+    if status is None:
+        if host_id is None:
+            data = runner.client.get_hosts()
+        else:
+            data = [runner.client.get_host(host_id)]
+        message = 'name: {0} status: {1} id: {2} roles: {3}'
+        for d in data:
+            click.echo(message.format(d.name, d.status, d.id, d.roles))
+    else:
+        runner.client.update_host_status(host_id, status)
+
+
+@cli.command()
+@click.option('--name', default=None)
+@click.option('--service', default=None)
+@click.option('--role', default=None)
+@click.pass_context
+def info(ctx, name, service, role):
+    runner = ctx.obj['instance']
+    data = runner.client.get_hosts(name=name, service=service, role=role)
+    [click.echo(host.status) for host in data]
+
+
+@cli.command()
+@click.option('--host-id')
+@click.pass_context
+def retire(ctx, host_id):
+    runner = ctx.obj['instance']
+    runner.client.retire_host(host_id)
+
+
+def main():
+    cli(obj={})
+
+
+if __name__ == '__main__':
+    main()
diff --git a/requirements.txt b/requirements.txt
index d8924e9..95a7a12 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 requests
+click
 simplejson
 mock
diff --git a/setup.py b/setup.py
index 035bb0e..32adef0 100644
--- a/setup.py
+++ b/setup.py
@@ -12,7 +12,7 @@
 import os
 from setuptools import setup, find_packages
 
-requires = ['requests', 'simplejson']
+requires = ['requests', 'simplejson', 'click']
 
 app_name = 'mackerel.client'
 
@@ -43,6 +43,10 @@
         'Operating System :: OS Independent',
         'Programming Language :: Python'
     ],
+    entry_points="""
+    [console_scripts]
+    mkr.py = mackerel.runner:main
+    """,
     tests_require=['requests', 'simplejson', 'mock'],
     test_suite='tests'
 )