Create an Account
All you need is to enter a username. You will be given an API key and some free credits.
Graphs Tab
Check out the graphs tab and double click an example graph to see a good starting point. Tabs are in the upper left corner. As you build your graphs, you will find them here.

Run Tab
After you have an example graph opened, try running it by navigating to the Run tab and entering some text. The “Basic” graph is a good hello world. Again, double click the "Basic" tile in the Graphs tab to open it.

Nodes Tab
When you’re ready to try changing the graph or building a new one, you can head to the nodes tab.

Save a New Graph
You can save a copy of a graph or clear an existing one in the Save tab.