We charge to collect metrics; the data is free and open once it’s been collected. You let us know to start collecting metrics on something when you register it with us.
The first 1000 items you register are free. Registering more than 1000 items will have an annual fee to provide sustainability for our nonprofit service (waivers available in some cases); the fee will depend on how many items you'd like to register.
Pricing levels are in the works: talk to us for details!