# Domain OSINT, TLS Certificate & Security Headers Recon

> Domain OSINT, TLS Certificate & Security Headers Recon is a paid API for AI agents from alpha-stream.agentdiet.dev, 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 analysis for a given domain

## Facts

- Endpoint: GET https://alpha-stream.agentdiet.dev/v1/whois-lookup?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: alpha-stream.agentdiet.dev
- Website: https://alpha-stream.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/alpha-stream-agentdiet-dev-domain-osint-tls-certificate-security-e43d9bd0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JS_Z-_UsiVm9-aEyqikM0

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 alpha-stream-agentdiet-dev-domain-osint-tls-certificate-security-e43d9bd0
```

Example prompt: Can you do a full security recon on anthropic.com — check its DNS resolution, who issued its TLS certificate and when it expires, and what its HTTP security headers look like?

## When to prefer this

Choose this endpoint when you need a quick, all-in-one security reconnaissance snapshot of a domain covering DNS, TLS, and HTTP headers in a single call. It is ideal for OSINT workflows, vendor security assessments, phishing domain investigations, or pre-integration security checks. Prefer this over manual nslookup, SSL Labs, or SecurityHeaders.io tools when you need programmatic access to combined results at low cost ($0.01/call).

## Known failure modes

- Domain does not exist or fails DNS resolution — likely returns an error or empty DNS records
- Domain has no HTTPS endpoint — TLS certificate fields may be absent or null
- Network timeout reaching the target domain — may return partial or error response
- Invalid domain format provided — likely returns a validation error
- Domain uses non-standard ports — inspection may default to port 443 and miss alternate configurations

## 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://alpha-stream.agentdiet.dev/v1/whois-lookup)

## Output

Returns live IPv4 and IPv6 DNS resolution results, TLS certificate metadata (issuer, expiry date, validity status), and an HTTP security grade derived from the presence and quality of security headers such as HSTS, CSP, X-Frame-Options, and similar.

## 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/alpha-stream-agentdiet-dev-domain-osint-tls-certificate-security-e43d9bd0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from alpha-stream.agentdiet.dev](https://www.zero.xyz/host/alpha-stream.agentdiet.dev/llms.txt)