I'm new to integrations. But, has anyone had any success integrating with Angie's List? The way this is intended to work, is that Angie's List is going to send new Lead info over to our org. However, it won't work in the "traditional" sense that I'm used to ... creating Connected App in Salesforce.

They don't have much documentation, but they've given me this
"it’s merely a HTTP POST to the URL of client API, and send JSON formatted lead data as request body payload. As for authentication, we don’t support OAUTH2, or make any requests to get access token out of box. Most of the client APIs we’ve been worked with are authorized by HTTP authorization header “X-API-KEY”. And they’ll provide a non-expired token value to use."

I'm looking at some workarounds like a Zapier in the meantime. Any thoughts/suggestions is greatly appreciated. Thank you all!