# agentsvc.io WHOIS Lookup

> agentsvc.io WHOIS Lookup is a paid API for AI agents from agentsvc.io, paid per call via x402, $0.0045/call, status unknown (last checked 2026-10-10).

Looks up WHOIS registration data for a domain, returning registrar, creation/expiry dates, name servers, and status flags.

## Facts

- Endpoint: POST https://agentsvc.io/api/v1/proxy/whois?utm_source=zero.xyz
- Price: $0.0045/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentsvc-io-whois-lookup-578fab64
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_3EdslLyYptuwsh1eFaPDn

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 agentsvc-io-whois-lookup-578fab64 -d '<json body>'
```

Example prompt: Can you look up the WHOIS info for stripe.com — I want to know who the registrar is, when it was registered, and when it expires?

## When to prefer this

Choose this endpoint when you need structured, machine-readable WHOIS registration data for a domain without setting up an account or API key — especially useful for agents performing one-off domain investigations, domain portfolio monitoring, or due-diligence checks on unfamiliar websites. Pays per call via USDC on Base, making it suitable for agentic workflows that run infrequently.

## Known failure modes

- Domain not found or not registered returns empty or error response
- Invalid domain format (e.g. including https://) may cause a parsing error
- Some TLDs may have restricted or redacted WHOIS data
- Network timeout if WHOIS registry is slow to respond
- Private/proxy-registered domains may return redacted registrant info

## How this service works

86 APIs for AI agents: web scraping and crawling to Markdown, AI summaries, data extraction and cited answers, screenshots and PDF, PDF, OCR and document conversion, news, paper and developer search and more, paid per call with USDC on Base, Solana, Polygon or Arbitrum via x402. No account, no API key, free sample on every service.

## Output

Returns a JSON object containing the domain's registrar name and URL, creation/expiry/updated timestamps, days until expiry, DNSSEC status, domain status codes (e.g. clientTransferProhibited), list of name servers, and registrant country code.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "domain": {
   "type": "string",
   "description": "Domain to look up (e.g. 'github.com', 'openai.com'). Include TLD, exclude https://"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "dnssec": "unsigned",
   "domain": "github.com",
   "status": [
    "clientDeleteProhibited",
    "clientTransferProhibited",
    "clientUpdateProhibited"
   ],
   "registrar": "MarkMonitor Inc.",
   "created_at": "2007-10-09T18:20:50.000Z",
   "expires_at": "2026-10-09T18:20:50.000Z",
   "updated_at": "2024-09-08T09:18:28.000Z",
   "name_servers": [
    "dns1.p08.nsone.net",
    "dns2.p08.nsone.net",
    "ns-1283.awsdns-32.org",
    "ns-1707.awsdns-21.co.uk"
   ],
   "registrar_url": "http://www.markmonitor.com",
   "days_until_expiry": 548,
   "registrant_country": "US"
  },
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentsvc-io-whois-lookup-578fab64/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentsvc.io](https://www.zero.xyz/host/agentsvc.io/llms.txt)