Store your data in ProBot database easily, using the embed messages feature, for free :).
pip install ProBotDB
Now all you need is a server ID with ProBot, and your auth token from probot.io.
from ProbotDB import ProBotDB
database = ProBotDB('auth token', 'server ID', 'embed name')
database.set('foo', 'bar')
database.get('foo'); // bar
database.push('foo', 'ok')
database.delete('foo');
database.clear();