diff --git a/i2v/__main__.py b/i2v/__main__.py
new file mode 100644
index 00000000..f5af93c5
--- /dev/null
+++ b/i2v/__main__.py
@@ -0,0 +1,45 @@
+#!/usr/bin/env python
+from pprint import pprint
+import hashlib
+
+from PIL import Image
+import click
+
+from . import make_i2v_with_chainer
+
+@click.group()
+@click.version_option()
+def cli():
+    pass
+
+@cli.command()
+@click.option('--output', default='default')
+@click.argument('images', nargs=-1)
+def estimate_plausible_tags(images, output='default'):
+    """Estimate plausible tags."""
+    illust2vec = make_i2v_with_chainer(
+        "illust2vec_tag_ver200.caffemodel", "tag_list.json")
+    image_sets = map(lambda x: {'value': x, 'sha256':sha256_checksum(x)}, images)
+    for idx, img_set in enumerate(image_sets):
+        img = Image.open(img_set['value'])
+        res = illust2vec.estimate_plausible_tags([img], threshold=0.5)
+        if isinstance(res[idx]['rating'], zip):
+            res[idx]['rating'] = list(res[idx]['rating'])
+        print("image: {}\nsha256: {}".format(
+            img_set['value'], img_set['sha256']))
+        if output == 'pprint':
+            pprint(res)
+        else:
+            print(res)
+
+
+def sha256_checksum(filename, block_size=65536):
+    sha256 = hashlib.sha256()
+    with open(filename, 'rb') as f:
+        for block in iter(lambda: f.read(block_size), b''):
+            sha256.update(block)
+    return sha256.hexdigest()
+
+
+if __name__ == '__main__':
+    cli()
diff --git a/requirements.txt b/requirements.txt
index 2e6d3f5f..9c558e35 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1 @@
-numpy
-scipy
-Pillow
-scikit-image
-chainer>=2.0.0
+.
diff --git a/setup.py b/setup.py
new file mode 100644
index 00000000..e69e274e
--- /dev/null
+++ b/setup.py
@@ -0,0 +1,41 @@
+#!/usr/bin/env python
+from setuptools import setup, find_packages
+
+with open('README.md') as f:
+    long_description = f.read()
+
+
+setup(
+    name="illustration2vec",
+    version="2.0.1",
+    packages=find_packages(),
+    install_requires=[
+        'chainer>=4.1.0',
+        'click>=6.7',
+        'numpy>=1.14.3',
+        'Pillow>=5.1.0',
+        'scikit-image>=0.14.0',
+    ],
+    author="rezoo",
+    author_email="rezoolab@gmail.com",
+    maintainer="Rachmadani Haryono",
+    maintainer_email="foreturiga@gmail.com",
+    description="A simple deep learning library for estimating a set of tags "
+    "and extracting semantic feature vectors from given illustrations.",
+    license="MIT License",
+    keywords="machine learning tag image illustration",
+    url="https://github.com/rezoo/illustration2vec/",   # project home page, if any
+    project_urls={
+        "Bug Tracker": "https://github.com/rezoo/illustration2vec/issues",
+    },
+    long_description=long_description,
+    long_description_content_type='text/markdown',
+    zip_safe=True,
+    entry_points={'console_scripts': ['i2v = i2v.__main__:cli', ],},
+    extras_require={
+        'dev':  [
+            'pdbpp>=0.9.2',
+            'ipython>=6.4.0',
+        ],
+    },
+)