# WhoisRequest, free, GET /api/v1/lookup/rdap/{domain name}: Domain WHOIS API

> An RDAP lookup returns structured registration data over HTTPS, including typed events, entity roles, statuses, notices and source links when the responding service publishes them.

WhoisRequest's Free plan for the domain WHOIS API costs $0.00 per 1,000 domains. We check each provider's docs for 9 fields. WhoisRequest's docs list 1: Name servers.
WhoisRequest limits how many calls you get but gives no number.
In [our domain WHOIS API benchmark](https://datacircle.dev/best-domain-whois-api.txt), this plan scores 91.3 out of 100. WhoisRequest ranks first of 48 providers.
We rank 631 plans for domain WHOIS APIs by price. Half the plans cost $1.663 or less per 1,000 domains. This plan and 37 others tie for the lowest price per 1,000 domains of the 631 plans. [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.
[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/whoisrequest/free-get-api-v1-lookup-rdap-domain-name
- [Domain WHOIS API in 2026: the best of 40+ providers compared](https://datacircle.dev/best-domain-whois-api.txt)
- Get it: https://whoisrequest.org/docs/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Request: `GET https://whoisrequest.org/api/v1/lookup/rdap/{domain name}`
- API key: not needed
- Its API docs: https://whoisrequest.org/docs/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Sold by: WhoisRequest (https://whoisrequest.org?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing)
- Checked: 2026-11-11

## In the answer

- Completeness: 11%
- Name servers: ✓

## Score

- Overall score: 91.3
- Price score: 100
- Accuracy score: 99
- Cost to get started score: 100
- Bundle score: 93
- Performance score: 15

## Price

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

## Charges

- Also pays for: WHOIS Lookup · IP WHOIS Lookup · Domain Availability Check · DNS Lookup · DNS Report · DNSSEC Check · Nameserver Lookup · Reverse DNS Lookup · IP to ASN Lookup · Hosting Lookup · Website Uptime Check · SSL Certificate Check · HTTP Headers Check · IDN and Punycode Converter

## Not found

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

## In their words

- Their pitch: An RDAP lookup returns structured registration data over HTTPS, including typed events, entity roles, statuses, notices and source links when the responding service publishes them.

## Data

- Freshness: live
- Keep data: no limit
- Use data: Use WhoisRequest.org for lawful registration research, network diagnostics and operational troubleshooting. Access to a public lookup does not grant permission to misuse the returned data or the upstream service. Do not use the service for harassment, bulk personal-data harvesting, credential attacks, unauthorized surveillance, service disruption, automated load, or attempts to reach private infrastructure. Respect the policies and rate limits of the original data provider.

## Plan

- Pay: $0

## Rate limit

- Batch: 1

## Speed

- Answer: in the call
- Median: 0.65 s

## The call

- You send: domain name
- Method: GET
- Path: /api/v1/lookup/rdap/{domain name}

## About the plan

- Plan: Free
- Who can get it: anyone, no account or API key

## The 10 fields the plan's answer can hold

query, RDAP source URL, summary, events, nameservers, notices, raw JSON, checked at, methodology URL, tool

## WhoisRequest's plans (1)

- [WhoisRequest, free, GET /api/v1/lookup/rdap/{domain name}](https://datacircle.dev/domain-whois-apis/whoisrequest/free-get-api-v1-lookup-rdap-domain-name/llms.txt): $0.00 per 1,000, 11% complete, live

## WhoisRequest's calls for this API (2)

- `GET /api/v1/lookup/rdap/{domain name}`: [WhoisRequest, free, GET /api/v1/lookup/rdap/{domain name}](https://datacircle.dev/domain-whois-apis/whoisrequest/free-get-api-v1-lookup-rdap-domain-name/llms.txt)
- `GET /api/v1/lookup/whois/{domain name}`: [WhoisRequest, free, GET /api/v1/lookup/whois/{domain name}](https://datacircle.dev/domain-whois-apis/whoisrequest/free-get-api-v1-lookup-whois-domain-name/llms.txt)

## WhoisRequest's APIs (2)

- [WhoisRequest IP company lookup API pricing, 1 plan](https://datacircle.dev/ip-company-lookup-apis/whoisrequest/free/llms.txt)
- [WhoisRequest Domain WHOIS API pricing, 1 plan, GET /api/v1/lookup/rdap/{domain name}](https://datacircle.dev/domain-whois-apis/whoisrequest/free-get-api-v1-lookup-rdap-domain-name/llms.txt)

## WhoisRequest: domain WHOIS API alternatives

[WhoisRequest alternatives: every domain WHOIS API provider ranked](https://datacircle.dev/whoisrequest-alternatives.txt)

We list other providers' plans closest to this plan in price per 1,000 domains. Each plan in the list gives live data.

- [thenetworkery, free](https://datacircle.dev/domain-whois-apis/thenetworkery/free/llms.txt): $0.00 per 1,000, 100% complete, live
- [FluentEDI, free](https://datacircle.dev/domain-whois-apis/fluentedi/free/llms.txt): $0.00 per 1,000, 67% complete, live
- [Enterno, free, Scout](https://datacircle.dev/domain-whois-apis/enterno/free-scout/llms.txt): $0.00 per 1,000, 89% complete, live
- [IPAddress.to, free](https://datacircle.dev/domain-whois-apis/ipaddress-to/free/llms.txt): $0.00 per 1,000, 89% complete, live

## Sources

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

- https://whoisrequest.org/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://whoisrequest.org/docs/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://whoisrequest.org/methodology?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://whoisrequest.org/privacy-policy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://whoisrequest.org/rdap?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://whoisrequest.org/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://whoisrequest.org/tools/asn-lookup?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://whoisrequest.org/whois?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing