I use NextDNS, but found managing allow-/denylists through the UI tedious, especially since I like to sync lists between profiles and keep them in version control.

So Claude and I built nextdnsctl, a small Python CLI that lets you manage lists via the official API.

    pip install nextdnsctl
    # get your key from https://my.nextdns.io/account
    nextdnsctl auth <api-key> # or set NEXTDNS_API_KEY
    nextdnsctl profile-list
    nextdnsctl denylist import "Router Profile" ./blocklist.txt