# 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 DNS resolution (IPv4/IPv6), TLS certificate inspection (issuer, expiry), and HTTP security header grading for a target domain.

## Facts

- Endpoint: GET https://token-intel.agentdiet.dev/v1/dns-whois-tls-recon?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: token-intel.agentdiet.dev
- Website: https://token-intel.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/token-intel-agentdiet-dev-domain-osint-tls-certificate-security-adc93694
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BucjfUKY3bRElZOLW9Uj1

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 token-intel-agentdiet-dev-domain-osint-tls-certificate-security-adc93694
```

Example prompt: Can you run a full DNS, TLS certificate, and HTTP security header recon on openai.com — I want to know the IPv4/IPv6 addresses, who issued the certificate, when it expires, and what security grade it gets?

## When to prefer this

Choose this endpoint when you need a combined, live view of a domain's DNS resolution, TLS certificate status, and HTTP security posture in a single call — ideal for OSINT reconnaissance, vendor due diligence, pre-launch audits, or monitoring infrastructure changes without running separate dig/curl/SSL tools.

## Known failure modes

- Domain does not exist or fails to resolve — DNS lookup returns no records
- Target domain is unreachable — TLS/HTTP inspection times out
- Invalid domain format provided — input validation error
- Domain has no HTTPS endpoint — TLS certificate data unavailable
- Payment not processed — HTTP 402 returned before results delivered

## 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/dns-whois-tls-recon)

## Output

Returns live DNS resolution results (IPv4 and IPv6 addresses), TLS certificate details (issuer, expiry date), and an HTTP security headers grade for the queried domain, enabling infrastructure and security posture assessment.

## 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/token-intel-agentdiet-dev-domain-osint-tls-certificate-security-adc93694/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from token-intel.agentdiet.dev](https://www.zero.xyz/host/token-intel.agentdiet.dev/llms.txt)