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

## Facts

- Endpoint: GET https://json-repair.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: 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-04b0be2e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SviMztzppm-rbufvUu2NG

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-04b0be2e
```

Example prompt: Can you run a full TLS and security header scan on anthropic.com — I want to see who issued the cert, when it expires, the resolved IPs, and how it scores on HTTP security headers?

## When to prefer this

Choose this endpoint when you need a combined DNS + TLS + HTTP security header snapshot for a domain in a single call, especially for OSINT recon, security audits, compliance checks, or verifying certificate health without setting up dedicated monitoring tooling.

## Known failure modes

- Domain does not exist or fails DNS resolution — returns error or empty DNS fields
- Domain has no HTTPS/TLS — certificate fields will be absent or null
- Target server times out or is unreachable — partial or failed response
- Invalid domain format input — returns validation error
- Domain blocks automated probes — may return incomplete header data

## 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/tls-scanner)

## Output

Returns live IPv4/IPv6 DNS resolution results, TLS certificate metadata (issuer, expiry date, chain details), and an HTTP security header assessment/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-04b0be2e/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)