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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 mcp-compiler.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).
Performs live DNS resolution (IPv4/IPv6), TLS certificate inspection (issuer, expiry), and HTTP security header grading for a target domain.
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://mcp-compiler.agentdiet.dev/v1/asn-lookup)
Output
Returns live DNS resolution results (IPv4 and IPv6 addresses), TLS certificate metadata (issuer, validity dates/expiry), and an HTTP security header grade assessing the domain's security posture.
Example use cases
Vendor security due diligence check
“Before we onboard this new SaaS vendor, can you inspect their domain stripe.com — pull the DNS resolution, TLS certificate issuer and expiry, and HTTP security header grade so I can include it in our vendor risk report?”
Monitor SSL expiry for client site
“Check the TLS certificate on myclientsite.com — I need to know who issued it and exactly when it expires so I can warn them before it lapses.”
OSINT recon on a suspicious domain
“I need OSINT on this domain phishingsuspect.xyz — get me its IPv4 and IPv6 DNS records, the TLS cert details, and its HTTP security grade so I can assess whether it's a threat.”
Technical details
Endpoint
GEThttps://mcp-compiler.agentdiet.dev/v1/asn-lookup?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a combined, single-call OSINT snapshot of a domain's DNS, TLS, and HTTP security posture without stitching together separate DNS, SSL checker, and header scanner tools. Ideal for security due diligence, vendor risk assessment, certificate expiry monitoring, or threat intelligence on suspicious domains.
Side effects
- Domain does not exist or cannot be resolved — DNS lookup fails
- Domain has no TLS certificate (HTTP-only) — certificate fields absent or null
- Network timeout reaching the target domain — partial or empty response
- Malformed domain input — validation error returned
- Domain exists but blocks automated probes — incomplete header data
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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