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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 token-intel.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).
Performs live reconnaissance on a domain by resolving IPv4/IPv6 DNS, inspecting TLS certificate issuer and expiry, and grading HTTP security headers.
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://token-intel.agentdiet.dev/v1/osint)
Output
Returns live DNS resolution results (IPv4/IPv6 addresses), TLS certificate details (issuer, expiry date), and an HTTP security header grade for the queried domain, reflecting the current state of the domain's infrastructure and security posture.
Example use cases
Vendor security posture check
“Before we onboard Acme Corp as a vendor, can you pull the domain OSINT on acmecorp.com — I need to see their TLS cert details and whether their HTTP security headers are up to scratch?”
SSL certificate expiry monitoring
“Can you check the TLS certificate on stripe.com for me? I want to know who issued it and when it expires so I can flag if it's close to renewal.”
Domain infrastructure investigation
“I'm investigating a suspicious domain — phishingsite.example.com. Can you do a recon on it and tell me what IPs it resolves to, its TLS cert issuer, and whether it has any security headers configured?”
Technical details
Endpoint
GEThttps://token-intel.agentdiet.dev/v1/osint?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a combined, live snapshot of a domain's DNS resolution, TLS certificate metadata, and HTTP security header posture in a single call — ideal for security recon, vendor due diligence, certificate expiry monitoring, or phishing/threat intelligence investigations. Prefer this over separate DNS or SSL tools when you want all three signals at once without chaining multiple APIs.
Side effects
- Domain does not exist or fails DNS resolution — returns error or empty DNS result
- Domain has no TLS certificate (HTTP-only) — TLS fields will be absent or null
- Domain is unreachable or times out during live probe — may return partial results or timeout error
- Invalid domain format provided — returns validation error
- Domain exists but has no HTTP response — security headers cannot be graded
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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