ddmctl is a tool for interacting with kmfddm.
You can pass in the API key and URL every time you run the command or set env vars for them instead.
To set th env vars:
export DDM_URL="https://$YOUR_SERVER_HERE"
export DDM_API_KEY="$YOUR_API_KEY"
# Optional, but handy if you are only working with a single client
export DDM_CLIENT_ID="$TEST_CLIENT_ID"