I need to test it, but as for $15/month for access to real time api... to me it doesn't sound expensive (from developer's point of view) - depends on quality, if it's websockets or web/rest api, amount of coins... hard to say... all the rest looks cool, thanks

*update: from Coinigy API, "WEBSOCKET API docs located here: Coming soon!", but there's couple of words in the same docs linked under REST HTTP API (http://docs.coinigy.apiary.io/#reference/websocket-api)