Nice work - looks like a cross between IFTTT and Pushbullet.
What are your differentiating factors?
Actually we are working on adding Hooks as an IFTTT channel later this month as a trigger so anyone can build their own receipts.
However, now that IFTTT supports push notifications, why do you still need Pushover or Pushbullet?
There's a sample curl command right there on the page.
EDIT: Pushbullet's home page has a link to API docs, and it took 30 seconds to find this: https://docs.pushbullet.com/#create-push