# Domain OSINT, TLS Certificate & Security Headers Recon

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

Performs live reconnaissance on a domain including IPv4/IPv6 DNS resolution, TLS certificate issuer/expiry details, and HTTP security header grading.

## Facts

- Endpoint: GET https://json-repair.agentdiet.dev/v1/osint?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: json-repair.agentdiet.dev
- Website: https://json-repair.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/json-repair-agentdiet-dev-domain-osint-tls-certificate-security-0aab851f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1Hdmw-eV5uB-Kg4VZrAJb

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 json-repair-agentdiet-dev-domain-osint-tls-certificate-security-0aab851f
```

Example prompt: Can you run a full domain recon on stripe.com — check its DNS resolution (IPv4 and IPv6), TLS certificate issuer and expiry, and how it scores on HTTP security headers?

## When to prefer this

Choose this endpoint when you need a quick, all-in-one passive recon snapshot of a domain covering DNS, TLS, and HTTP security in a single call. It is ideal for security due diligence, vendor assessments, pre-launch audits, or monitoring a domain's certificate health without needing to integrate multiple specialized DNS/SSL tools separately.

## Known failure modes

- Invalid or non-existent domain returns an error or empty DNS result
- Domain with no TLS certificate will have null/missing certificate fields
- Domains blocking automated probes may return incomplete header data
- Network timeouts for slow or unreachable domains
- Malformed domain input (e.g. with http:// prefix or trailing slash) may cause parsing errors

## 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://json-repair.agentdiet.dev/v1/osint)

## Output

Returns live DNS resolution data (IPv4 and IPv6 addresses), TLS certificate metadata (issuer, expiry date, validity status), and an HTTP security headers assessment including a security grade 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/json-repair-agentdiet-dev-domain-osint-tls-certificate-security-0aab851f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from json-repair.agentdiet.dev](https://www.zero.xyz/host/json-repair.agentdiet.dev/llms.txt)