This plugin (Realhook) provides your Limnoria bot with a simple webhook, which can be used to send messages to an (at the moment hardcoded) irc-channel vi a HTTP POST request.
Keep in mind: The hook does not implement any form of authentication. The hook is exposed to anyone who has access to the server via http, thus allowing them to use it!
A simple python client for the hook:
import requests
HOOKURL = 'https://bots.realraum.at/realhook/'
requests.post(HOOKURL, data = 'hello world', headers={'content-type': 'text/plain;'})
At realraum we use(d) this to notify our irc-channel about zeromq events, see demo code.