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Domain OSINT, TLS Certificate & Security Headers Recon
Domain OSINT, TLS Certificate & Security Headers Recon is a paid API for AI agents from x402broker.com, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).
Performs live DNS resolution, TLS certificate inspection, and HTTP security header grading for a given domain name.
Price / call$0.01
Success—
StatusUnknown
How this service works
Inspects live IPv4/IPv6 DNS resolution, TLS certificate issuer/expiry, and HTTP security grade. (Live x402 v2, IETF MPP & MCP endpoint at https://x402broker.com/v1/osint)
Output
Returns live DNS resolution results (IPv4/IPv6 addresses), TLS certificate metadata (issuer, expiry date, validity status), and an HTTP security header audit with a security grade, all gathered in real time for the specified domain.
Example use cases
Vendor security due diligence
“Before we sign a contract with this vendor, can you check paymentco.io — I need to see their DNS setup, TLS certificate details like issuer and expiry, and how their HTTP security headers stack up?”
Certificate expiry monitoring alert
“Our ops team wants to know if the TLS certificate for api.acmecorp.com is close to expiring — can you pull the certificate info and tell me the expiry date and who issued it?”
Competitor security posture recon
“I'm doing a security benchmark and want to understand how competitor.com is configured — can you look up their IPv4 and IPv6 DNS records, check their TLS certificate, and grade their HTTP security headers?”
Technical details
Endpoint
GEThttps://x402broker.com/v1/osint?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, combined OSINT snapshot of a domain's network and security posture — DNS resolution, TLS certificate details, and HTTP security headers in a single call. Prefer it over manual tooling or separate nslookup/openssl/curl checks when an agent needs to programmatically assess domain security, perform vendor due diligence, monitor certificate health, or conduct lightweight reconnaissance without requiring shell access.
Side effects
- Domain does not exist or fails DNS resolution — returns error or empty DNS records
- Domain has no TLS certificate (HTTP-only) — TLS fields will be absent or indicate failure
- Domain is unreachable or times out — may return partial results or timeout error
- Invalid domain format provided — returns validation error
- Domain blocks automated HTTP requests — security headers may be incomplete
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| domainrequired | string | Target domain name (e.g. anthropic.com, openai.com) for DNS, TLS certificate, and security header OSINT |
Output
Schema · Response
{
"type": "object"
}Reviews
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