# IPv4 Address Lookup for Vendor Screening

> IPv4 Address Lookup for Vendor Screening 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).

Returns public DNS A records (IPv4 addresses) for a given hostname, intended for vendor screening and domain infrastructure research.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/demand-domain-ipv4-records-vendor-screening?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-for-vendor-screening-bf43061d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XsS79CXGcccsO_lIIi8nB

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-for-vendor-screening-bf43061d -d '<json body>'
```

Example prompt: Can you look up the public IPv4 DNS A records for acmecorp.com? I need it for vendor screening.

## When to prefer this

Choose this endpoint when you need a quick, low-cost DNS A record resolution for vendor or supplier screening workflows. It is ideal when you only need IPv4 addresses from public DNS and do not require email verification, WHOIS data, or broader threat intelligence. Best suited for lightweight due diligence pipelines where DNS infrastructure data is the primary signal.

## Known failure modes

- Domain does not exist or has no A records — returns empty result or NXDOMAIN
- Invalid domain format supplied — may return validation error
- Domain exists but has no IPv4 A records (IPv6-only or misconfigured) — returns empty A record set
- Network or upstream DNS resolver timeout — returns error

## How this service works

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

## Output

The endpoint returns the public DNS A records for the specified domain, listing the IPv4 addresses that the hostname currently resolves to. No email verification or inbox validation is performed — this is pure 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-for-vendor-screening-bf43061d/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)