# Domain OSINT, TLS Certificate & Security Headers Recon

> Domain OSINT, TLS Certificate & Security Headers Recon is a paid API for AI agents from cve-intel.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).

Inspects a domain's live DNS resolution (IPv4/IPv6), TLS certificate issuer and expiry, and HTTP security header grade for OSINT and recon purposes.

## Facts

- Endpoint: GET https://cve-intel.agentdiet.dev/v1/tls-scanner?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: cve-intel.agentdiet.dev
- Website: https://cve-intel.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/cve-intel-agentdiet-dev-domain-osint-tls-certificate-security-headers-8e675caf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Kk7PfhNneZTdtDnitCPsp

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability cve-intel-agentdiet-dev-domain-osint-tls-certificate-security-headers-8e675caf
```

Example prompt: Can you scan anthropic.com and tell me its DNS resolution (both IPv4 and IPv6), who issued its TLS certificate and when it expires, and what security header grade it's getting?

## When to prefer this

Choose this endpoint when you need a fast, single-call OSINT snapshot of a domain's DNS, TLS certificate status, and HTTP security posture — especially useful for security audits, vendor due diligence, pre-launch checks, or reconnaissance workflows where you want all three data points (DNS, TLS, headers) in one response rather than stitching together separate tools.

## Known failure modes

- Invalid or non-existent domain returns an error or empty results
- Domain with no TLS certificate may return partial results (DNS only)
- Unreachable domains or those behind DDoS protection may fail to respond
- Typos in domain name result in incorrect or no data
- Rate limiting or payment failure (HTTP 402) blocks the request

## 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://cve-intel.agentdiet.dev/v1/tls-scanner)

## Output

Returns live DNS resolution results (IPv4 and IPv6 addresses), TLS certificate details including issuer and expiration date, and an HTTP security headers grade or assessment for the target domain.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "domain"
 ],
 "properties": {
  "domain": {
   "type": "string",
   "minLength": 1,
   "description": "Target domain name (e.g. anthropic.com, openai.com) for DNS, TLS certificate, and security header OSINT"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cve-intel-agentdiet-dev-domain-osint-tls-certificate-security-headers-8e675caf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cve-intel.agentdiet.dev](https://www.zero.xyz/host/cve-intel.agentdiet.dev/llms.txt)