Domain intelligence, priced per call. DNS, WHOIS, TLS, DNSSEC, email auth,
blacklists and uptime — for humans with a card, and for AI agents that pay per
request with no account at all.
What you can check
check
price
what you get
profile
$0.025
All 8 domain checks — dns, whois, tls, dnssec, email-auth, security-score, blacklist, plus ip resolved from the A record. $0.040 bought separately.
dns ●
$0.005
A/AAAA/MX/NS/TXT records + resolve timing
whois ●
$0.005
Registrar, dates, nameservers, status
tls ●
$0.005
Certificate validity, issuer, days remaining
dnssec ●
$0.005
Whether DNSSEC validates
email-auth ●
$0.005
SPF, DKIM and DMARC posture
security-score ●
$0.005
Overall security grade
blacklist ●
$0.005
Whether the domain/IP is listed
ip ●
$0.005
Intelligence for an IP address
bots
$0.050
Bot observatory, partner tier — networks, named crawlers, JA4 fingerprints, firewall rules, hourly series. One document, refreshed hourly.
site_status
$0.005
HTTP status + latency, DNS ms, TTL, NS, TLS expiry
page_watch
$0.005
Did this page change since last time, and by how much
● = included in the bundled profile call (8 of the 10 individual checks). site_status and page_watch stay separate: they need a URL and do a live fetch, and page_watch only means anything on a second call — though a profile now seeds its baseline for free.
Two ways to pay
No subscription and nothing expires — you buy a
balance and spend it per call. $1 → 200 single checks or 40 full profiles; $10 → 2,000 or 400.
Humans → buy credits
Pay by card, get an API key with a prepaid balance. Every call draws it down. Any amount from $1 — though $10+ wastes less on card fees.
Your API key:
Save it — it is your account.
Agents → pay per call (x402)
No signup, no key. Call it; get HTTP 402 with the price; pay in USDC; retry.
Settles on Base (currently the Sepolia testnet).
Every check takes a JSON body or the same field as a query parameter.
Bad input gets a 400 with the schema; nothing is charged.
Also available
feature
Bundled profile
All 8 domain checks in one call for $0.025 — you save 37% versus
$0.040 buying them individually, and it is one payment instead of eight.
Scheduled monitors
We re-check on your interval and record when a site goes
down/recovers or a page materially changes. Funded from your balance.
Partial results
If a source is down we return the sections we got
and name the ones we did not, in an errors field. The bundle is billed at its
flat price either way — a profile is only refunded if every section fails. Individual
checks are refunded when they fail.
Free watch baseline
Every profile call also stores a page
snapshot of https://<domain> at no charge, so your first
page_watch on it reports real changes instead of an empty first result. An existing
baseline is never overwritten.
Page-change watch
Text-similarity diff vs the last snapshot — tells you
how much changed and what.