Name: subdomain-enum
Price: 0.03 USDC
Availability: InStock

$ man subdomain-enum

agentutility / web-probe / subdomain-enum

PRICE / CALL

$0.03

USDC · base mainnet · scheme: exact

METHOD

POST

CLUSTER

webprobe

CATEGORY

utilities

STATUS

● live

NAME

subdomain-enum — enumerates a domain's subdomains by mining certificate transparency logs (crt.sh)

SYNOPSIS

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

     { ... }

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

DESCRIPTION

Enumerates a domain's subdomains by mining Certificate Transparency logs (crt.sh). All-public data; each subdomain comes with first-seen, last-seen, and cert count. Use it for subdomain enumeration, attack-surface mapping, or DNS recon.

INPUT — request schema

property	type	description	req?
domain	string	—	required
include_wildcards	boolean	—	optional

OUTPUT — response shape

field	type	description
domain	string	Echoes the root domain that was enumerated.
subdomain_count	number	Total number of unique subdomains discovered across mined CT log entries.
subdomains	array	Array of subdomain records, each with hostname, first-seen date, last-seen date, and cert count.
cert_log_entries_examined	number	Number of Certificate Transparency log entries scanned from crt.sh for this domain.
source	string	Upstream data source identifier, typically crt.sh for Certificate Transparency log mining.
notes	string	Free-text notes on enumeration coverage, truncation, or caveats about the result set.

EXAMPLES — two ways to call

EXAMPLE 1 · curl

curl -X POST https://x402.agentutility.ai/subdomain-enum \
  -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 subdomain-enum tool from your MCP-aware agent.

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

METADATA

tags: securitysubdomainct-logrecon
methods: POST
cluster: webprobe
price: $0.03 USDC per call

ADJACENT — other endpoints in webprobe

endpoint	description	price
arxiv-search	arXiv full-text search.	$0.03
browser-render	Loads a public URL with JavaScript enabled and returns rendered HTML, title, final URL, byte count, or a base64 screenshot when requested.	$0.03
browser-session	Loads a URL in a real headless browser with JavaScript executed, then returns the rendered HTML and page title, or a base64 screenshot.	$0.03
headless-browser	Opens a public URL in a real headless browser, waits for client-side rendering, and returns the rendered DOM or a screenshot.	$0.03
javascript-render	Renders a URL with JavaScript enabled and returns the browser-rendered HTML, title, resolved URL, and truncation metadata, or captures a…	$0.03
ssl-cert	Checks a domain's SSL certificate: issuer, subject, SAN list, validity dates, and days-until-expiry.	$0.03
ssl-cert-info	Inspects a domain's SSL/TLS certificate: issuer, subject, SAN list, validity dates, and days-until-expiry.	$0.03
ssl-certificate-check	SSL certificate check / TLS certificate expiry API.	$0.03