# IPv4 Address Lookup via Public DNS (Security Review)

> IPv4 Address Lookup via Public DNS (Security Review) is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).

Resolves a hostname to its public IPv4 A records for security review purposes using live DNS data.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/demand-domain-ipv4-records-security-review?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ipv4-address-lookup-via-public-dns-security-review-e1fd36ad
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_c8eRwPYrqJlQ4yXtp2DU2

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 ipv4-address-lookup-via-public-dns-security-review-e1fd36ad -d '<json body>'
```

Example prompt: Can you look up the public IPv4 A records for datapackvibe.com so I can review what IP addresses it resolves to?

## When to prefer this

Use this endpoint when you need to resolve a public hostname to its IPv4 addresses for security review, threat analysis, or infrastructure verification. Prefer this over generic DNS tools when you specifically need A records in a structured, pay-per-call API format suitable for automated agent workflows. Not suitable for MX record lookups, email verification, or AAAA (IPv6) resolution.

## Known failure modes

- Domain does not exist or has no A records — returns empty or NXDOMAIN result
- Invalid domain format provided — may return an error or empty result
- Domain has only IPv6 (AAAA) records and no IPv4 A records — returns empty
- DNS resolution timeout or upstream DNS failure — may return an error
- Private or internal hostnames that are not publicly resolvable — no result returned

## How this service works

IPv4 address lookup for Security review: Return public A records for the hostname. DNS data only; does not send email or verify that an inbox exists.

## Output

Returns the public IPv4 A records (one or more IP addresses) associated with the provided hostname, sourced from live public DNS. No email verification or inbox checking is performed — purely DNS data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "domain": {
   "type": "string",
   "default": "example.com",
   "description": "Public DNS domain, e.g. example.com."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ipv4-address-lookup-via-public-dns-security-review-e1fd36ad/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)