# QuantAgentShop, pay as you go: Domain WHOIS API

> Domain lookup in one call: DNS records (A, AAAA, MX, TXT, NS, CNAME, SOA, CAA with TTLs), registry RDAP registration data (registrar, created, updated and expiry dates, status, nameservers, DNSSEC) and the TLS certificate (issuer, names, validity, days left, chain verified).

QuantAgentShop's Pay per call with x402 plan for the domain WHOIS API costs $9.90 per 1,000 domains. We check each provider's docs for 9 fields. QuantAgentShop's docs list 6: Registrar, Created on, Expires on, Name servers, Statuses, DNSSEC.
We haven't run QuantAgentShop through [our domain WHOIS API benchmark](https://datacircle.dev/best-domain-whois-api.txt) yet.
We rank 400 plans for domain WHOIS APIs by price. Half the plans cost $1.50 or less per 1,000 domains. This plan costs less per 1,000 domains than 11% of the 400 plans.
[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. [C99.nl's $25 yearly plan](https://datacircle.dev/domain-whois-apis/c99-nl/25-yearly/llms.txt) costs the least for 10,000 domains a month: $2.08.
[Enterno](https://datacircle.dev/domain-whois-apis/enterno/free-open-api/llms.txt), [IPAddress.to](https://datacircle.dev/domain-whois-apis/ipaddress-to/free/llms.txt) and [Robtex](https://datacircle.dev/domain-whois-apis/robtex/free/llms.txt) are the best domain WHOIS API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/domain-whois-apis/quantagentshop/pay-as-you-go
- [Domain WHOIS API: the 19 best of 80+ providers compared](https://datacircle.dev/best-domain-whois-api.txt)
- Get it: https://quantagentshop.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Request: `POST https://quantagentshop.com/v1/domain-lookup`
- API key: not needed
- Its API docs: https://quantagentshop.com/tools/domain-lookup?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Sold by: QuantAgentShop (https://quantagentshop.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing)
- Checked: 2026-11-08

## In the answer

- Completeness: 67%
- Registrar: ✓
- Created on: ✓
- Expires on: ✓
- Name servers: ✓
- Statuses: ✓
- DNSSEC: ✓

## Price

- $ per 1,000 domains: $9.90
- Per: call
- Billing: pay as you go

## Charges

- Also pays for: nothing else

## In their words

- Their pitch: Domain lookup in one call: DNS records (A, AAAA, MX, TXT, NS, CNAME, SOA, CAA with TTLs), registry RDAP registration data (registrar, created, updated and expiry dates, status, nameservers, DNSSEC) and the TLS certificate (issuer, names, validity, days left, chain verified).

## Data

- Keep data: no limit
- Use data: What this shop makes from your input (PDFs, QR codes, summaries, extractions, grades, scores, hashes and the layout of every result) is yours to use, store and redistribute freely. Data that comes from a third party stays under that source's terms, linked below, where a licence asks for credit, the result carries an attribution line to keep with it. [...] Do not use the service for anything unlawful. [...] Results are provided as they come from public sources and providers, without warranty.

## Plan

- Pay: per call

## Rate limit

- Concurrent: 1
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: domain. Optional: parts, dns_types
- Method: POST
- Path: /v1/domain-lookup

## About the plan

- Plan: Pay per call with x402
- Who can get it: anyone, with no account or API key, paying each call in USDC on Base (x402)

## The 14 fields the plan's answer can hold

domain, domain exists, registered, registrar, registrar IANA ID, registration date, last changed, expiry date, status, nameservers, DNSSEC, RDAP URL, retrieved at, checked at

## QuantAgentShop's plans (1)

- [QuantAgentShop, pay as you go](https://datacircle.dev/domain-whois-apis/quantagentshop/pay-as-you-go/llms.txt): $9.90 per 1,000, 67% complete

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

- `POST /v1/domain-lookup`: [QuantAgentShop, pay as you go](https://datacircle.dev/domain-whois-apis/quantagentshop/pay-as-you-go/llms.txt)

## QuantAgentShop's APIs (6)

- [QuantAgentShop: business verification API pricing, 1 plan](https://datacircle.dev/business-verification-apis/quantagentshop/pay-as-you-go/llms.txt)
- [QuantAgentShop: domain WHOIS API pricing, 1 plan](https://datacircle.dev/domain-whois-apis/quantagentshop/pay-as-you-go/llms.txt)
- [QuantAgentShop: email verification API pricing, 1 plan](https://datacircle.dev/validate-email-apis/quantagentshop/pay-as-you-go/llms.txt)
- [QuantAgentShop: IP company lookup API pricing, 1 plan](https://datacircle.dev/ip-company-lookup-apis/quantagentshop/pay-as-you-go/llms.txt)
- [QuantAgentShop: phone validation API pricing, 1 plan](https://datacircle.dev/validate-phone-apis/quantagentshop/pay-as-you-go/llms.txt)
- [QuantAgentShop: web scraping API pricing, 1 plan](https://datacircle.dev/web-scraping-apis/quantagentshop/pay-as-you-go/llms.txt)

## QuantAgentShop: domain WHOIS API alternatives

- [ScrapeWhale, $9.90 pack](https://datacircle.dev/domain-whois-apis/scrapewhale/9-90-pack/llms.txt): $9.90 per 1,000, 78% complete, 7 days
- [ViewDNS.info, $149 monthly](https://datacircle.dev/domain-whois-apis/viewdns-info/149-monthly/llms.txt): $9.933 per 1,000, 89% complete, live
- [Osint, $99.99 pack](https://datacircle.dev/domain-whois-apis/osint/99-99-pack/llms.txt): $9.999 per 1,000, 89% complete, live
- [DomainKits, $149.99 monthly, Premium, POST /bulk/whois](https://datacircle.dev/domain-whois-apis/domainkits/149-99-monthly-premium-post-bulk-whois/llms.txt): $9.999 per 1,000, 67% complete

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-08.

- https://quantagentshop.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://quantagentshop.com/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://quantagentshop.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://quantagentshop.com/policies?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://quantagentshop.com/tools/domain-lookup?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing