Name: whois-lookup
Price: 0.02 USDC
Availability: InStock

$ man whois-lookup

agentutility / web-probe / whois-lookup

PRICE / CALL

$0.02

USDC · base mainnet · scheme: exact

METHOD

POST

CLUSTER

webprobe

CATEGORY

utilities

STATUS

● live

NAME

whois-lookup — looks up whois registration data for a domain via the iana-mandated rdap endpoint for its tld

SYNOPSIS

POST https://x402.agentutility.ai/whois-lookup
     Content-Type: application/json
     X-PAYMENT:    <signed-transferWithAuthorization>

     { ... }

↳ first call → 402 Payment Required. Sign USDCtransferWithAuthorization, retry with theX-PAYMENT header.

DESCRIPTION

Looks up WHOIS registration data for a domain via the IANA-mandated RDAP endpoint for its TLD. Returns registration date, age in days, expiration date, days-until-expiry, last-changed and transfer dates, registrar (name + IANA id), registrant/admin/tech contacts, nameservers, DNSSEC-signed flag, EPP status codes, and risk flags (newly-registered, expiring-soon, locked). Optionally appends a crt.sh certificate-transparency summary. Use it as a whois API, RDAP domain lookup, domain age check, registrar finder, expiration checker, nameserver inspector, DNSSEC verifier, domain transfer history source, TLD registration record, or brand-protection + phishing triage tool.

INPUT — request schema

property	type	description	req?
domain	string	Apex domain to look up (e.g. 'example.com'). Subdomains are stripped to the registrable domain before query.	required
include_certificates	boolean	If true, fetch a crt.sh certificate-transparency summary (issuer counts, first/last seen, total certs). Default false.	optional

OUTPUT — response shape

field	type	description
domain	string	Queried domain name in canonical lowercase form.
rdap_server	string	RDAP server URL that answered the lookup for this TLD.
registered_date	string	Domain creation timestamp in ISO 8601 format.
expiration_date	string	Current registration expiration timestamp in ISO 8601 format.
age_days	number	Days elapsed since the domain was first registered.
days_until_expiry	number	Days remaining until the current registration expires; negative if already expired.
registrar	object	Registrar record with name, IANA ID, and abuse contact email and phone.
contacts	object	Registrant, admin, and tech contact roles with any unredacted name, org, email, and country.
nameservers	array	Authoritative nameserver hostnames listed on the domain record.
dnssec_signed	boolean	True if the domain has a signed DNSSEC delegation at the TLD.
statuses	array	EPP status codes on the domain such as clientTransferProhibited or pendingDelete.
flags	array	Derived risk flags like newly-registered, expiring-soon, redacted-whois, or pending-transfer.
cert_summary	object	Certificate-transparency summary with first-seen date, recent issuers, and active cert count.

EXAMPLES — two ways to call

EXAMPLE 1 · curl

curl -X POST https://x402.agentutility.ai/whois-lookup \
  -H 'Content-Type: application/json' \
  -d '{ }'

first response = 402 Payment Required with payment requirements; sign + retry with X-PAYMENT.

EXAMPLE 2 · mcp

# Install the MCP package for this endpoint's cluster
npx -y @agentutility/mcp-<cluster>

# Required: EVM private key with USDC on Base
export X402_PRIVATE_KEY=0x...

# Then call the whois-lookup tool from your MCP-aware agent.

MCP server handles payment automatically — your coding agent just calls the tool by name.

METADATA

tags: whoisrdapdomaindnssecurity
methods: POST
cluster: webprobe
price: $0.02 USDC per call

ADJACENT — other endpoints in webprobe

endpoint	description	price
archive-snapshot	Finds the closest archived snapshot of a public URL, like a Wayback Machine API.	$0.02
archive-snapshot-api	Finds archived snapshots of public web pages, returning the closest Wayback Machine captures with timestamps, status codes, and replay URLs.	$0.02
archive-url	Looks up the archived copy of a public URL closest to a given timestamp and can fetch cleaned archived page text.	$0.02
brand-domain-check	Checks whether a brand or company domain is established, expiring, registrar-locked, or newly registered, on the same RDAP backend as who…	$0.02
brand-watch-domain-risk	Checks new or suspicious brand-adjacent domains for age, registrar, expiry, DNSSEC, and transfer/lock statuses.	$0.02
creator-domain-check	Checks creator, newsletter, podcast, and community domains for age, expiry, registrar, DNSSEC, and suspicious new-registration flags.	$0.02
dmarc-check	Audits a domain's email authentication posture: DMARC, SPF, and DKIM in one check.	$0.02
dns-lookup	Full DNS lookup over Cloudflare 1.1.1.1 DNS-over-HTTPS.	$0.02