Get started with Reconeer's API for domain reconnaissance.
curl https://reconeer.com/api/domain/example.com
curl https://reconeer.com/api/ip/8.8.8.8
curl https://reconeer.com/api/subdomain/sub.example.com
Free: 10 queries/day (no key needed yet). Premium: Unlimited with API key (sign up for access).
Full examples and source: GitHub Repo