You must have an API key to make a request. Each app that you create has a separate API key. Each app gets a 100 free API key requests. The following docs outline what responses you should expect and what errors you may see in your developer logs.
Any API call requires you to pass your API token and your API key as "token" and "key".
We provide three sets of endpoints that allow you to access raw and parsed data along with editing your user object to manage portfolios. Note that we do not necessarily respond with the same error codes to your request as we do with our logs so we recommend you use these for debugging.
Our code snippets are populated with your API credentials so you can copy and paste them straight into your code