The API reference contains capabilities to run live code against the Netography API for testing and educational purposes. This system is built using readme.com and uses code snippets that are generated from API docs and hosted on JSFiddle.
It is good security practice to delete the API keys you test with and create production keys to use. Do not use production keys in the live API testing docs environment.
What is JSFiddle?
This is a code snippet service that lets you run client-side Javascript code for developer testing. If you are testing new code, the keys you enter in JSFiddle are never sent outside your browser, but this is using external code on several outside services from Netography (including readme.com and JSFiddle).