If you told me that your solution help my team ship faster and saves an hour per engineer per week then that's easy math: your product pays for itself.
Suggestions:
- Make all base features free (the ones on your site currently)
- Add analytics to your product, collect data and put it behind a paywall (entirely or partially by truncating historical data)
- Iterate on premium features that improves critical metrics
- Offer analytics with a trial of 2 to 3 months, enough time for graphs to speak for themselves
- Make sure the gains are seen by the manager or business owner or whoever is the person in charge
Pricing can be based on the average of hours saved.