# WhoisXML API on looot

WhoisXML API gives your agent 9 jobs through looot: look up a domain's WHOIS record, look up an IP address, netblocks api ip and 6 more jobs. 9 endpoints run today, from $0.00049 per call.

## At a glance

- Category: Enrichment
- Access: Runs on looot's platform key: you do not need your own WhoisXML API account
- Price: from $0.00049

## Choose it when

- You need to look up a domain's WHOIS record: WhoisXML API is the only provider on looot that runs this job today.
- You want the lowest price to look up an IP address: $0.00049 per call, the cheapest of 2 providers on looot.
- You need to netblocks api ip: WhoisXML API is the only provider on looot that runs this job today.
- You need to look up a domain's DNS records: WhoisXML API is the only provider on looot that runs this job today.
- You need to verify api email: WhoisXML API is the only provider on looot that runs this job today.

## Endpoints and jobs

| Endpoint | Job | Price | Runs (30 days) | Benchmark |
|---|---|---|---|---|
| [WHOIS record for a domain, IP or email](/public-catalog/whoisxml-whois) | `domain.whois.lookup` | $0.025 per call | 97.4% of 39 runs without an error, median 507 ms | no benchmark yet |
| [Geolocation, ISP and ASN for an IP](/public-catalog/whoisxml-ip-geolocation) | `ip.lookup` | $0.00049 per call | 100% of 19 runs without an error, median 866 ms | no benchmark yet |
| [IP range owner for an IP](/public-catalog/whoisxml-ip-netblocks) | `api.ip.netblocks` | $0.0069 per call | not enough runs to rank | no benchmark yet |
| [DNS records for a domain](/public-catalog/whoisxml-dns) | `domain.dns.records` | $0.007 per call | not enough runs to rank | no benchmark yet |
| [Verify an email address](/public-catalog/whoisxml-email-verification) | `api.email.verify` | $0.0089 per call | not enough runs to rank | no benchmark yet |
| [Is a domain available to register](/public-catalog/whoisxml-domain-availability) | `api.domain.availability` | $0.019 per call | not enough runs to rank | no benchmark yet |
| [Domains hosted on an IP](/public-catalog/whoisxml-reverse-ip) | `api.ip.reverse` | $0.095 per call | not enough runs to rank | no benchmark yet |
| [Subdomains of a domain](/public-catalog/whoisxml-subdomains) | `api.domain.subdomains` | $0.19 per call | not enough runs to rank | no benchmark yet |
| [Reputation score for a domain or IP](/public-catalog/whoisxml-domain-reputation) | `api.domain.reputation` | $0.39 per call | not enough runs to rank | no benchmark yet |

## How the numbers are measured

Run numbers are looot's own runs of each endpoint over the last 30 days: the share that completed without an error, and the median time to answer. An endpoint with fewer than 10 runs in that window shows "not enough runs to rank" and is never ranked. Prices are what looot charges per call or per result, fee included, read from the live catalog; you prepay credit and each call is charged when it runs.

Read 2026-11-10 23:22 UTC.

## Related pages

- [WhoisXML API MCP](/mcp/whoisxml)

## For agents

The minimal request for WHOIS record for a domain, IP or email (`whoisxml-whois`). Replace each <placeholder> with your value and send a new idempotency key per run.

### MCP

```json
{
  "endpointId": "whoisxml-whois",
  "input": {
    "domain": "<domain>"
  },
  "idempotencyKey": "<a new id per run>"
}
```

### REST

```bash
curl -X POST https://api.looot.ai/v1/runs \
  -H "Authorization: Bearer $LOOOT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"endpointId":"whoisxml-whois","input":{"domain":"<domain>"},"idempotencyKey":"<a new id per run>"}'
```

### CLI

```bash
looot run whoisxml-whois --input '{"domain":"<domain>"}'
```