Arch Tools Domain WHOIS API pricing: POST /v1/tools/domain-check

Name: Arch Tools domain WHOIS API, POST /v1/tools/domain-check
Brand: Arch Tools

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33% complete: 3 of the 9 fields on our checklistSee the 9 fields

$0.00per 1,000 domainsWe haven't run Arch Tools through our domain WHOIS API benchmark 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. WhoisRequest's free plan scores highest of the free plans in our benchmark, at 96.9 out of 100.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.WhoisRequest, thenetworkery and FluentEDI are the best domain WHOIS API providers in the Datacircle benchmark.

Plan: Free one of Arch Tools' 9 plans

Call: POST /v1/tools/domain-check one of Arch Tools' 2 calls for this API

API: Domain WHOIS API one of Arch Tools' 9 APIs

About this item

Freshness. We don't know how fresh this plan's data is.
3 of the 9 fields on our checklist. Created on, Expires on, Name servers.
Nothing to pay. You get 100 credits, enough for 50 calls.
One call. You send domain to POST /v1/tools/domain-check. The call returns the domain's WHOIS record.
Who can get it: anyone aged 18 or over with a valid email address. Keep data: no limit. Use data: with conditions.

The table starts with Arch Tools' cheapest paid plan. Next come plans from other providers with the price per 1,000 domains closest to Arch Tools'.

	Arch Tools, $199 monthly, Business, POST /v1/tools/domain-check	Wapi, CNY 150 pack	Shunwei, top-up	TrustLookup, $79 monthly	JsonWhois, $21.49 monthly
$ per 1,000 domains	$2.274	$2.243	$2.243	$2.257	$2.262
Completeness	33%	78%	56%	33%	78%
Billing	monthly	pay first	pay first	monthly	monthly
Pay	$199	CNY 150	any amount	$79	$21.49
Enough for	87,500 calls a month	10,000 calls	as many as you pay for	35,000 calls a month	9,500 calls a month
Freshness	unknown	unknown	unknown	24 hours	1 week
Who can get it	anyone aged 18 or over with a valid email address	anyone with a Wapi account	anyone with an account	anyone	anyone with a JsonWHOIS account

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.

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

Charges
Also pays for	from the same budget: 62 other Arch Tools calls

Not found
$ per 1,000 calls that find nothing	$0.00

In their words
Their pitch	Check if a domain is registered or available via RDAP. Returns registration date, nameservers, expiry.

Data
Keep data	no limit
Use data	Your use of the Service is governed by our full Acceptable Use Policy, which is incorporated into these Terms. In summary, you agree not to: Use the Service for any unlawful purpose, or violate any third-party rights or applicable laws [...] Reverse engineer, scrape, copy, resell, or sublicense the Service, or resell, transfer, or redistribute your API key or credits [...] Attempt to exceed rate limits, bypass authentication or billing, or abuse the platform [...] Use the Service to generate spam, malware, phishing, or harmful content

Speed
Answer	in the call

About the plan
Plan	Free
Who can get it	anyone aged 18 or over with a valid email address

The 5 fields the plan's answer can hold

domain, available, creation date, expiration date, name servers