I definitely do not make a living from it, but after two years, my Bitcoin on-chain data and metrics API service has started to generate some revenue.

It's basically a service where you can download highly processed Bitcoin data in CSV, XLSX, or JSON formats, updated hourly.

I offer affordable subscriptions paid directly in satoshis to my self-hosted Lightning Network node — no intermediaries!

If you’d like to check it out: https://bitcoinisdata.com/