# domain.hugen.tokyo WHOIS Lookup

> domain.hugen.tokyo WHOIS Lookup is a paid API for AI agents from domain.hugen.tokyo, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15, last successful call 2026-05-01).

Returns full WHOIS registration data for any domain — registrar, creation/expiry/update dates, domain age, name servers, DNSSEC status, registrant country/org, and EPP status codes

## Facts

- Endpoint: GET https://domain.hugen.tokyo/domain/whois
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Last successful call: 2026-05-01
- Success rate: 100% of calls made through Zero
- Activations on Zero: 1
- Tags: x402
- Canonical page: https://www.zero.xyz/c/domain-hugen-tokyo-61d76363
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_de2NSZ8_a7pn9Th4WHEBS

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 domain-hugen-tokyo-61d76363
```

Example prompt: Can you pull the full WHOIS record for shopify.com — I want to know the registrar, when it was created and expires, how old it is in days, the name servers, and whether DNSSEC is enabled?

## When to prefer this

Use this endpoint when you need structured WHOIS registration metadata for any domain across all TLDs (.com, .net, .org, .io, .dev, .ai, ccTLDs, gTLDs) without standing up your own WHOIS client or handling TLD-specific parsing. Especially useful when you need domain age, registrar, or expiry dates enriched into a pipeline for a flat $0.01 USDC per call.

## Known failure modes

- Domain does not exist — exists field returns false with other fields null or empty
- TLD not supported or WHOIS server unreachable — partial fields returned with per-field error resilience
- Malformed domain input — likely returns error or empty response
- Rate limiting or payment failure — HTTP 402 if payment not provided or insufficient

## How this service works

WHOIS registration lookup — registrar, creation/expiry/updated dates, domain age in days, name servers, DNSSEC, registrant country/org, EPP status codes. All TLDs (.com .net .org .io .dev .ai ccTLDs gTLDs). Per-field error resilience for TLD-specific parsing quirks. No WHOIS library setup or TLD-specific parsing needed. Accepts USDC payments on Base and Solana

## Output

A JSON object containing: domain existence flag, registrar name, WHOIS server, creation/expiration/updated dates, domain age in days, list of name servers, DNSSEC status, EPP status codes, registrant organization and country, and any available emails. Per-field error resilience means partial results are returned even when TLD-specific parsing quirks are encountered.

## Example request

```json
{
 "domain": "example.com"
}
```

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "required": [
    "method"
   ]
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/domain-hugen-tokyo-61d76363/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from domain.hugen.tokyo](https://www.zero.xyz/host/domain.hugen.tokyo/llms.txt)