Datacircle

fourzerotwo pricing: domain WHOIS API

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67% complete: 6 of the 9 fields on our checklistSee the 9 fields

$0.00per 1,000 domainsWe haven't run fourzerotwo through our domain WHOIS API benchmark yet.This plan is free. We rank 607 plans for domain WHOIS APIs by price. Half the plans cost $1.667 or less per 1,000 domains. See the best free domain WHOIS API plan.Searchwire's $10 pack 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 costs the least for 10,000 domains a month: about $0.73.thenetworkery, FluentEDI and DomainDetails are the best domain WHOIS API providers in the Datacircle benchmark.
Type a number to see the cheapest fourzerotwo plan for that many domains. The table below then sorts the other plans by what each costs.
Plan: Free key one of fourzerotwo's 5 plans
Call: GET /v1/domains/facts fourzerotwo's only call for this API
API: Domain WHOIS API one of fourzerotwo's 8 APIs

About this item

  • Live. fourzerotwo reads the domain's WHOIS record when you call the API.
  • 6 of the 9 fields on our checklist. Registrar, Created on, Expires on, Name servers, Statuses, DNSSEC.
  • Nothing to pay. You get up to 90 calls a month.
  • One call. You send domain to GET /v1/domains/facts. The call returns the domain's WHOIS record.
  • Who can get it: anyone with an email address. Keep data: no API terms. Use data: Keep the attribution when you show the data..

fourzerotwo: domain WHOIS API alternatives

fourzerotwo alternatives: other domain WHOIS API providers by price

The table starts with fourzerotwo's cheapest paid plan. Next come plans from other providers with the price per 1,000 domains closest to fourzerotwo's. Each plan in the table gives live data.

fourzerotwo, pay as you goWhoisFreaks, $2,000 pack, 1,000,000 API Credits, POST /v2.0/bulkwhois/liveSiteCheck, pay as you go, x402 pay per call, GET /api/domainGenexxis, pay as you go, x402 pay per call, GET /whois-bulkWhoxy, $10 pack
$ per 1,000 domains$2.00$2.00$2.00$2.00$2.00
Completeness67%100%89%78%78%
Billingpay as you gopay firstpay as you gopay as you gopay first
Payper call$2,000per callper call$10
Enough foras many as you pay for1,000,000 resultsas many as you pay foras many as you pay for5,000 calls
Freshnesslivelivelivelivelive
Who can get itanyone with a wallet paying each call in USDC through x402 on Base, with no account or API keyanyone over the age of 13 with a real company or personal email, not for gambling, adult content, dating, the alcohol industry, defense or military organizationsanyone at least 18 acting for business purposes (not a consumer), not a person subject to sanctions or from a region where the service or the payment would be prohibited, with no account or API key, paying each call in USDC (x402)anyone with a wallet holding USDC on Base, with no account or API key, paying each call (x402)anyone 13 or older with an account, one account per person or legal entity

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.

  1. fourzerotwo.si/apis/domains/facts
  2. fourzerotwo.si/catalog.json
  3. fourzerotwo.si/credits
  4. fourzerotwo.si/free
  5. fourzerotwo.si/llms.txt
  6. fourzerotwo.si/openapi.json

Product details

The key fields this plan's answer can hold, then each filled column in its row on the sheet.

  • Registrant, not in the answer
  • Registrar
  • Created on
  • Updated on, not in the answer
  • Expires on
  • Name servers
  • Statuses
  • DNSSEC
  • Abuse contact, not in the answer
Price
$ per 1,000 domains$0.00
Percall
Billingfree
Charges
Also pays forfrom the same budget: 529 other fourzerotwo calls: 500 a day
Not found
$ per 1,000 calls that find nothing$0.00
In their words
Their pitchRegistrar, created, expiry, age, status codes, nameservers and DNSSEC.
Data
Freshnesslive
Keep datano API terms
Use dataKeep the attribution when you show the data.
Plan
Pay$0
Enough for90 calls a month
Rate limit
Per day3
Batch1
Speed
Answerin the call
The call
You senddomain
MethodGET
Path/v1/domains/facts
About the plan
PlanFree key
Who can get itanyone with an email address
The 7 fields the plan's answer can hold

registrar, created date, expires date, domain age, status, name servers, DNSSEC

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