# thenetworkery, free: Domain WHOIS API

> Who holds a domain, IP address or AS number – from the registry, via RDAP.

thenetworkery's Free plan for the domain WHOIS API costs $0.00 per 1,000 domains. We check each provider's docs for 9 fields. thenetworkery's docs list all 9: Registrant, Registrar, Created on, Updated on, Expires on, Name servers, Statuses, DNSSEC, Abuse contact.
In [our domain WHOIS API benchmark](https://datacircle.dev/best-domain-whois-api.txt), this plan scores 95.5 out of 100. thenetworkery ranks first of 38 providers.
We rank 589 plans for domain WHOIS APIs by price. Half the plans cost $1.67 or less per 1,000 domains. This plan and 29 others tie for the lowest price per 1,000 domains of the 589 plans. [See the best free domain WHOIS API plan.](https://datacircle.dev/best-domain-whois-api.txt)
[thenetworkery](https://datacircle.dev/domain-whois-apis/thenetworkery/free/llms.txt), [FluentEDI](https://datacircle.dev/domain-whois-apis/fluentedi/free/llms.txt) and [DomainDetails](https://datacircle.dev/domain-whois-apis/domaindetails/9-99-monthly-alerts-get-api-rdap/llms.txt) are the best domain WHOIS API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/domain-whois-apis/thenetworkery/free
- [Domain WHOIS API in 2026: the best of 30+ providers compared](https://datacircle.dev/best-domain-whois-api.txt)
- Get it: https://thenetworkery.com/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Request: `GET https://thenetworkery.com/api/v1/whois`
- API key: not needed
- Its API docs: https://thenetworkery.com/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing#whois
- Sold by: thenetworkery (https://thenetworkery.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing)
- Checked: 2026-11-10

## In the answer

- Completeness: 100%
- Registrant: ✓
- Registrar: ✓
- Created on: ✓
- Updated on: ✓
- Expires on: ✓
- Name servers: ✓
- Statuses: ✓
- DNSSEC: ✓
- Abuse contact: ✓

## Score

- Overall score: 95.5
- Price score: 100
- Accuracy score: 97
- Cost to get started score: 100
- Bundle score: 96
- Performance score: 66

## Price

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

## Charges

- Also pays for: from the same budget: Domain health report · What's my IP? · DNS lookup · DNSSEC check · Nameserver health check · Email security check · Email test · Email record builder · Blacklist check · SSL/TLS certificate check · HTTP headers & security check · Certificate Transparency search · Network report · ASN & BGP prefix lookup · RPKI / ROA validator · PeeringDB lookup · Reverse DNS (PTR) check · Open port check · IP calculator · POST /mcp-server-test · JWT decoder · MAC address vendor lookup · DN42 registry search · DN42 free resource finder · DN42 peering config generator · Public DNS resolver status · One resolver with history

## Not found

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

## In their words

- Their pitch: Who holds a domain, IP address or AS number – from the registry, via RDAP.

## Data

- Freshness: live
- Keep data: no limit
- Use data: Registration data belongs to the registry that publishes it and is shown under its terms of use, linked under each result. Use it to run or troubleshoot networks, not for marketing or bulk collection. Use the service only for lawful purposes and only to check systems you own, run, or are authorised to test. In particular, you must not: scan, probe or attack networks, hosts or services you aren't authorised to test, or use the port check, HTTP, TLS, MCP or webhook tools as part of an attack, use webhook URLs, auto-forwarding, the webhook sender tester or monitors to send spam, unsolicited or harmful traffic, or to overload anyone's systems, store or share unlawful, harmful or infringing content in webhook URLs, status pages, saved results or share links, or use them for phishing or impersonation, get around rate limits, blocks or usage limits, for example by rotating addresses or creating accounts in bulk, interfere with, disrupt or try to gain unauthorised access to the service or its infrastructure, or test its security without following our security reporting process. Automated use through the API and MCP server is welcome within their published limits. Please send a meaningful User-Agent so we can contact you if something goes wrong.

## Plan

- Pay: $0

## Rate limit

- Per second: 1
- Batch: 1

## Speed

- Answer: in the call
- Median: 0.15 s

## The call

- You send: query
- Method: GET
- Path: /whois

## About the plan

- Plan: Free
- Who can get it: anyone, to check systems they own, run or are authorised to test

## The 16 fields the plan's answer can hold

domain name, handle, status, created date, updated date, expiry date, days until expiry, name servers, DNSSEC, transfer lock, registrar, registrant name, admin name, tech name, abuse contact, RDAP server

## thenetworkery's plans (1)

- [thenetworkery, free](https://datacircle.dev/domain-whois-apis/thenetworkery/free/llms.txt): $0.00 per 1,000, 100% complete, live

## thenetworkery's calls for this API (1)

- `GET /whois`: [thenetworkery, free](https://datacircle.dev/domain-whois-apis/thenetworkery/free/llms.txt)

## thenetworkery's APIs (2)

- [thenetworkery: domain WHOIS API pricing, 1 plan](https://datacircle.dev/domain-whois-apis/thenetworkery/free/llms.txt)
- [thenetworkery: IP company lookup API pricing, 1 plan](https://datacircle.dev/ip-company-lookup-apis/thenetworkery/free/llms.txt)

## thenetworkery: domain WHOIS API alternatives

- [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
- [Robtex, free](https://datacircle.dev/domain-whois-apis/robtex/free/llms.txt): $0.00 per 1,000, 67% 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 2026-11-10.

- https://thenetworkery.com/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://thenetworkery.com/api/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://thenetworkery.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://thenetworkery.com/tools/whois?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing