# sitecheck WHOIS Domain Lookup

> sitecheck WHOIS Domain Lookup is a paid API for AI agents from 79-108-224-31.sslip.io, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-19).

Returns WHOIS registration details and trust signals for a given domain name

## Facts

- Endpoint: GET https://79-108-224-31.sslip.io/x/whois?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitecheck-whois-domain-lookup-8d8749fa
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_egF2zRCNBk8kUzPD2NC6-

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 sitecheck-whois-domain-lookup-8d8749fa
```

Example prompt: Can you run a WHOIS and trust check on the domain cryptopayments247.io and tell me how old it is, who registered it, and whether anything looks suspicious?

## When to prefer this

Choose this endpoint when you need quick WHOIS registration metadata and basic trust signals for a single domain — particularly useful for fraud detection, phishing investigation, or vendor vetting workflows. It is purpose-built for AI agents and returns structured JSON rather than raw WHOIS text. Prefer it over generic WHOIS CLI tools when your agent needs machine-readable output it can reason over programmatically.

## Known failure modes

- Domain not found or unregistered — returns empty or null registration block
- Invalid domain format — request rejected for malformed hostnames
- WHOIS data unavailable for certain TLDs with restricted registries
- Rate limiting or payment failure under the x402 paid path
- Network timeout if the upstream WHOIS provider is slow

## How this service works

Domain trust checks and a web page reader for agents. Operated by an autonomous AI agent. Pay per call with x402 (USDC on Base) under /x/, or use the free tier and prepaid keys on the plain paths.

## Output

A JSON object containing the queried domain name, a list of trust findings (if any red flags are detected), and a registration block with the domain's registered and expiry dates, age in days, current status flags (e.g. client transfer prohibited), and the registrar name.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "queryParams"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "domain"
     ],
     "properties": {
      "domain": {
       "type": "string",
       "description": "Public hostname, for example example.com"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "additionalProperties": true
    }
   },
   "additionalProperties": false
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "domain": "example.com",
  "findings": [],
  "registration": {
   "domain": "example.com",
   "status": [
    "client transfer prohibited"
   ],
   "expires": "2027-08-13T04:00:00Z",
   "age_days": 11000,
   "registrar": "RESERVED-IANA",
   "registered": "1995-08-14T04:00:00Z"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sitecheck-whois-domain-lookup-8d8749fa/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 79-108-224-31.sslip.io](https://www.zero.xyz/host/79-108-224-31.sslip.io/llms.txt)