# who.is, free, GET /v1/rdap/{domain}: Domain WHOIS API

> Get parsed WHOIS records, normalized RDAP data, DNS records, and TLS certificate details for any domain, all as clean JSON over HTTPS.

who.is' Free plan for the domain WHOIS API costs $0.00 per 1,000 domains. We check each provider's docs for 9 fields. who.is' docs list 4: Created on, Expires on, Name servers, Statuses.
We haven't run who.is through [our domain WHOIS API benchmark](https://datacircle.dev/best-domain-whois-api.txt) yet.
This plan is free. We rank 631 plans for domain WHOIS APIs by price. Half the plans cost $1.663 or less per 1,000 domains. [128 domain WHOIS API plans on our price sheet are free.](https://datacircle.dev/best-domain-whois-api.txt) [WhoisRequest's free plan](https://datacircle.dev/domain-whois-apis/whoisrequest/free-get-api-v1-lookup-whois-domain-name/llms.txt) scores highest of the free plans in our benchmark, at 96.9 out of 100.
[Searchwire's $10 pack](https://datacircle.dev/domain-whois-apis/searchwire/10-pack/llms.txt) is the cheapest paid plan per 1,000 domains. Searchwire's domain WHOIS API costs nothing beyond the plan price. [UAPI's CNY 4.90 pack](https://datacircle.dev/domain-whois-apis/uapi/cny-4-90-pack/llms.txt) costs the least for 10,000 domains a month: about $0.73.
[WhoisRequest](https://datacircle.dev/domain-whois-apis/whoisrequest/free-get-api-v1-lookup-whois-domain-name/llms.txt), [thenetworkery](https://datacircle.dev/domain-whois-apis/thenetworkery/free/llms.txt) and [FluentEDI](https://datacircle.dev/domain-whois-apis/fluentedi/free/llms.txt) are the best domain WHOIS API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/domain-whois-apis/who-is/free-get-v1-rdap-domain
- [Domain WHOIS API in 2026: the best of 40+ providers compared](https://datacircle.dev/best-domain-whois-api.txt)
- Get it: https://who.is/docs/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Request: `GET https://api.who.is/v1/rdap/{domain}`, Normalized RDAP record
- API key: with the plan, on https://who.is/docs/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Its API docs: https://who.is/docs/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Sold by: who.is (https://who.is?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing)
- Checked: 2026-11-10

## In the answer

- Completeness: 44%
- Created on: ✓
- Expires on: ✓
- Name servers: ✓
- Statuses: ✓

## Price

- $ per 1,000 domains: $0.00
- Per: call
- Billing: free

## Charges

- Also pays for: from the same budget: Parsed WHOIS record · Domain history summary · Current DNS records · Current TLS certificate · Nameservers at or under a name · Nameserver summary · Domains on a nameserver

## Overage

- Units cap: hard

## Not found

- $ per 1,000 calls that find nothing: $0.00

## In their words

- Their pitch: Get parsed WHOIS records, normalized RDAP data, DNS records, and TLS certificate details for any domain, all as clean JSON over HTTPS.

## Data

- Freshness: stored
- Keep data: no limit
- Use data: The API is provided so you can look up and integrate parsed WHOIS, normalized RDAP, and DNS and TLS certificate data for individual domains into your own application, workflow, or research. You may query domains you have a legitimate reason to query and display or store the results within your own product, subject to the restrictions below and to the rate limits and quotas for your plan. What you may not do: "You may not resell, sublicense, redistribute, or otherwise make the API responses available to third parties as a standalone data product or feed.", "You may not use it to systematically harvest, mirror, or reconstruct our database, the historical archive, or any substantial portion of it, and you may not circumvent the per-key quotas (for example by rotating keys or creating multiple free accounts).", "No using the API to send unsolicited communications, to facilitate unlawful activity, to attempt to de-anonymize or re-identify redacted registrant data, or to probe, overload, or interfere with the service or its infrastructure."

## Plan

- Pay: $0
- You get: 500 credits a month
- Enough for: 500 calls a month

## Rate limit

- Per second: 1
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: domain. Optional: live
- Method: GET
- Path: /v1/rdap/{domain}

## About the plan

- Plan: Free
- Who can get it: anyone

## The 25 fields the plan's answer can hold

domain, handle, object class name, status, RDAP conformance, resource URL, snapshot time, created date, expires date, name servers, entity handle, entity roles, entity name, entity kind, entity email, entity phone, entity fax, entity organization, entity address, entity address lines, entity country code, entity contact URI, entity public ID type, entity public ID, child entities

## who.is' plans (5)

- [who.is, free, GET /v1/rdap/{domain}](https://datacircle.dev/domain-whois-apis/who-is/free-get-v1-rdap-domain/llms.txt): $0.00 per 1,000, 44% complete, stored
- [who.is, $4.99 pack, Credit pack, GET /v1/rdap/{domain}, Normalized RDAP record](https://datacircle.dev/domain-whois-apis/who-is/4-99-pack-credit-pack-get-v1-rdap-domain-normalized-rdap-record/llms.txt): $2.495 per 1,000, 44% complete, stored
- [who.is, $29 monthly, Pro API Access, GET /v1/rdap/{domain}, Normalized RDAP record](https://datacircle.dev/domain-whois-apis/who-is/29-monthly-pro-api-access-get-v1-rdap-domain-normalized-rdap-record/llms.txt): $1.933 per 1,000, 44% complete, stored
- [who.is, $99 monthly, Growth API Access, GET /v1/rdap/{domain}, Normalized RDAP record](https://datacircle.dev/domain-whois-apis/who-is/99-monthly-growth-api-access-get-v1-rdap-domain-normalized-rdap-record/llms.txt): $1.65 per 1,000, 44% complete, stored
- [who.is, $199 monthly, Scale API Access, GET /v1/rdap/{domain}, Normalized RDAP record](https://datacircle.dev/domain-whois-apis/who-is/199-monthly-scale-api-access-get-v1-rdap-domain-normalized-rdap-record/llms.txt): $1.327 per 1,000, 44% complete, stored

## who.is' calls (4)

- `GET /v1/rdap/{domain}`, Normalized RDAP record: [who.is, free, GET /v1/rdap/{domain}](https://datacircle.dev/domain-whois-apis/who-is/free-get-v1-rdap-domain/llms.txt)
- `GET /v1/whois/{domain}`, Parsed WHOIS record: [who.is, free, GET /v1/whois/{domain}](https://datacircle.dev/domain-whois-apis/who-is/free-get-v1-whois-domain/llms.txt)
- `GET /v1/rdap/{domain}`, Normalized RDAP record (live): [who.is, $4.99 pack, Credit pack, GET /v1/rdap/{domain}, Normalized RDAP record (live)](https://datacircle.dev/domain-whois-apis/who-is/4-99-pack-credit-pack-get-v1-rdap-domain-normalized-rdap-record-live/llms.txt)
- `GET /v1/whois/{domain}`, Parsed WHOIS record (live): [who.is, $4.99 pack, Credit pack, GET /v1/whois/{domain}, Parsed WHOIS record (live)](https://datacircle.dev/domain-whois-apis/who-is/4-99-pack-credit-pack-get-v1-whois-domain-parsed-whois-record-live/llms.txt)

## who.is' APIs (1)

- [who.is Domain WHOIS API pricing, 5 plans, GET /v1/rdap/{domain}, Normalized RDAP record](https://datacircle.dev/domain-whois-apis/who-is/free-get-v1-rdap-domain/llms.txt)

## who.is: domain WHOIS API alternatives

[who.is alternatives: other domain WHOIS API providers by price](https://datacircle.dev/who-is-alternatives.txt)

We list who.is' cheapest paid plan first. Next we list other providers' plans closest to who.is in price per 1,000 domains.

- [who.is, $199 monthly, Scale API Access, GET /v1/rdap/{domain}, Normalized RDAP record](https://datacircle.dev/domain-whois-apis/who-is/199-monthly-scale-api-access-get-v1-rdap-domain-normalized-rdap-record/llms.txt): $1.327 per 1,000, 44% complete, stored
- [WhoisFreaks, $200 monthly, Monthly Subscription, 150,000 API Credits, POST /v2.0/bulkwhois/live](https://datacircle.dev/domain-whois-apis/whoisfreaks/200-monthly-monthly-subscription-150000-api-credits-post-v2-0-bulkwhois-live/llms.txt): $1.333 per 1,000, 100% complete, live
- [Netlas, $490 yearly](https://datacircle.dev/domain-whois-apis/netlas/490-yearly/llms.txt): $1.343 per 1,000, 89% complete, 45 days
- [DNSai, $499 monthly, Enterprise, GET /api/v1/domains/{id}/whois/](https://datacircle.dev/domain-whois-apis/dnsai/499-monthly-enterprise-get-api-v1-domains-id-whois/llms.txt): $1.663 per 1,000, 89% complete, stored
- [isMalicious, €990 yearly](https://datacircle.dev/domain-whois-apis/ismalicious/990-yearly/llms.txt): $9.284 per 1,000, 67% complete, stored

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-10.

- https://api.who.is/v1/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://who.is/docs/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://who.is/docs/api/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing