# Centorprat, pay as you go: Domain WHOIS API

> Give it domains. For each it queries keyless RDAP (the modern WHOIS) and reports the registrar, creation and expiry dates, days until the domain expires, registry status/locks, nameservers and DNSSEC - with a signal (active / expiring-soon / expired / at-risk).

Centorprat's x402 pay per call plan for the domain WHOIS API costs $5.00 per 1,000 domains. We check each provider's docs for 9 fields. Centorprat's docs list 6: Registrar, Created on, Expires on, Name servers, Statuses, DNSSEC.
We haven't run Centorprat through [our domain WHOIS API benchmark](https://datacircle.dev/best-domain-whois-api.txt) yet.
We rank 495 plans for domain WHOIS APIs by price. Half the plans cost $1.575 or less per 1,000 domains. This plan costs less per 1,000 domains than 18% of the 495 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.
[WhoisJSON](https://datacircle.dev/domain-whois-apis/whoisjson/120-monthly/llms.txt), [Enterno](https://datacircle.dev/domain-whois-apis/enterno/free-open-api/llms.txt) and [IPAddress.to](https://datacircle.dev/domain-whois-apis/ipaddress-to/free/llms.txt) are the best domain WHOIS API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/domain-whois-apis/centorprat/pay-as-you-go
- [Domain WHOIS API in 2026: the best of 20+ providers compared](https://datacircle.dev/best-domain-whois-api.txt)
- Get it: https://agent-data.centorprat.workers.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Request: `POST https://agent-data.centorprat.workers.dev/tools/domain-expiry-registration-check`
- API key: not needed
- Its API docs: https://agent-data.centorprat.workers.dev/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing#/paths/~1tools~1domain-expiry-registration-check
- Sold by: Centorprat (https://agent-data.centorprat.workers.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing)
- Checked: 2026-11-09

## In the answer

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

## Price

- $ per 1,000 domains: $5.00
- Per: result
- Billing: pay as you go

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Give it domains. For each it queries keyless RDAP (the modern WHOIS) and reports the registrar, creation and expiry dates, days until the domain expires, registry status/locks, nameservers and DNSSEC - with a signal (active / expiring-soon / expired / at-risk).

## Data

- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: per call

## Rate limit

- Batch: 3

## Speed

- Answer: in the call

## The call

- You send: nothing required. Optional: domains, warnDays, criticalDays, onlyProblems
- Method: POST
- Path: /tools/domain-expiry-registration-check

## About the plan

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

## The 9 fields the plan's answer can hold

domain, registrar, created date, expires date, days until expiry, status, nameservers, DNSSEC, signal

## Centorprat's plans (1)

- [Centorprat, pay as you go](https://datacircle.dev/domain-whois-apis/centorprat/pay-as-you-go/llms.txt): $5.00 per 1,000, 67% complete

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

- `POST /tools/domain-expiry-registration-check`: [Centorprat, pay as you go](https://datacircle.dev/domain-whois-apis/centorprat/pay-as-you-go/llms.txt)

## Centorprat's APIs (18)

- [Centorprat: company discovery API pricing, 1 plan](https://datacircle.dev/company-discovery-apis/centorprat/pay-as-you-go/llms.txt)
- [Centorprat: domain WHOIS API pricing, 1 plan](https://datacircle.dev/domain-whois-apis/centorprat/pay-as-you-go/llms.txt)
- [Centorprat: email verification API pricing, 1 plan](https://datacircle.dev/validate-email-apis/centorprat/pay-as-you-go/llms.txt)
- [Centorprat: Google Ads Transparency API pricing, 1 plan](https://datacircle.dev/google-ad-apis/centorprat/pay-as-you-go/llms.txt)
- [Centorprat: Pinterest search API pricing, 1 plan](https://datacircle.dev/pinterest-search-apis/centorprat/pay-as-you-go/llms.txt)
- [Centorprat: Redfin search API pricing, 1 plan](https://datacircle.dev/redfin-search-apis/centorprat/pay-as-you-go/llms.txt)
- [Centorprat: Telegram channel post API pricing, 1 plan](https://datacircle.dev/telegram-channel-post-apis/centorprat/pay-as-you-go/llms.txt)
- [Centorprat: YouTube channel API pricing, 1 plan](https://datacircle.dev/youtube-channel-apis/centorprat/pay-as-you-go/llms.txt)
- [Centorprat: job postings API pricing, 1 plan, POST /tools/dice-jobs-scraper](https://datacircle.dev/job-posting-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-tools-dice-jobs-scraper/llms.txt)
- [Centorprat: job postings API pricing, 1 plan, POST /tools/indeed-jobs-scraper](https://datacircle.dev/job-posting-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-tools-indeed-jobs-scraper/llms.txt)
- [Centorprat: job postings API pricing, 1 plan, POST /tools/indeed-jobs-scraper-max](https://datacircle.dev/job-posting-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-tools-indeed-jobs-scraper-max/llms.txt)
- [Centorprat: job postings API pricing, 1 plan, POST /tools/multi-job-board-scraper](https://datacircle.dev/job-posting-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-tools-multi-job-board-scraper/llms.txt)
- [Centorprat: job postings API pricing, 1 plan, POST /tools/reed-jobs-scraper](https://datacircle.dev/job-posting-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-tools-reed-jobs-scraper/llms.txt)
- [Centorprat: job postings API pricing, 1 plan, POST /tools/remote-jobs-aggregator](https://datacircle.dev/job-posting-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-tools-remote-jobs-aggregator/llms.txt)
- [Centorprat: job postings API pricing, 1 plan, POST /tools/seek-jobs-scraper](https://datacircle.dev/job-posting-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-tools-seek-jobs-scraper/llms.txt)
- [Centorprat: job postings API pricing, 1 plan, POST /tools/stepstone-jobs-scraper](https://datacircle.dev/job-posting-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-tools-stepstone-jobs-scraper/llms.txt)
- [Centorprat: job postings API pricing, 1 plan, POST /tools/wttj-jobs-scraper](https://datacircle.dev/job-posting-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-tools-wttj-jobs-scraper/llms.txt)
- [Centorprat: job postings API pricing, 1 plan, POST /tools/wellfound-jobs-scraper](https://datacircle.dev/job-posting-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-tools-wellfound-jobs-scraper/llms.txt)
- [Centorprat: job postings API pricing, 1 plan, POST /tools/xing-jobs-scraper](https://datacircle.dev/job-posting-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-tools-xing-jobs-scraper/llms.txt)
- [Centorprat: company enrichment API pricing, 1 plan, GET /enrich/company](https://datacircle.dev/company-enrichment-apis/centorprat/pay-as-you-go-x402-pay-per-call-get-enrich-company/llms.txt)
- [Centorprat: company enrichment API pricing, 1 plan, GET /enrich/company-max](https://datacircle.dev/company-enrichment-apis/centorprat/pay-as-you-go-x402-pay-per-call-get-enrich-company-max/llms.txt)
- [Centorprat: web scraping API pricing, 1 plan, POST /exa/contents](https://datacircle.dev/web-scraping-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-exa-contents/llms.txt)
- [Centorprat: web scraping API pricing, 1 plan, POST /firecrawl/scrape](https://datacircle.dev/web-scraping-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-firecrawl-scrape/llms.txt)
- [Centorprat: web scraping API pricing, 1 plan, POST /contents](https://datacircle.dev/web-scraping-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-contents/llms.txt)
- [Centorprat: web scraping API pricing, 1 plan, GET /web/fetch](https://datacircle.dev/web-scraping-apis/centorprat/pay-as-you-go-x402-pay-per-call-get-web-fetch/llms.txt)
- [Centorprat: web scraping API pricing, 1 plan, GET /web/read](https://datacircle.dev/web-scraping-apis/centorprat/pay-as-you-go-x402-pay-per-call-get-web-read/llms.txt)
- [Centorprat: web search API pricing, 1 plan, POST /exa/search](https://datacircle.dev/web-search-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-exa-search/llms.txt)
- [Centorprat: web search API pricing, 1 plan, POST /firecrawl/search](https://datacircle.dev/web-search-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-firecrawl-search/llms.txt)
- [Centorprat: web search API pricing, 1 plan, POST /search-read](https://datacircle.dev/web-search-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-search-read/llms.txt)
- [Centorprat: web search API pricing, 1 plan, POST /tavily/search](https://datacircle.dev/web-search-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-tavily-search/llms.txt)
- [Centorprat: web search API pricing, 1 plan, GET /web/search](https://datacircle.dev/web-search-apis/centorprat/pay-as-you-go-x402-pay-per-call-get-web-search/llms.txt)
- [Centorprat: web search API pricing, 1 plan, POST /search](https://datacircle.dev/web-search-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-search/llms.txt)
- [Centorprat: web search API pricing, 1 plan, GET /web/search-read](https://datacircle.dev/web-search-apis/centorprat/pay-as-you-go-x402-pay-per-call-get-web-search-read/llms.txt)
- [Centorprat: SERP API pricing, 1 plan, POST /serp](https://datacircle.dev/serp-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-serp/llms.txt)
- [Centorprat: SERP API pricing, 1 plan, POST /geo-search](https://datacircle.dev/serp-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-geo-search/llms.txt)
- [Centorprat: local business search API pricing, 1 plan, POST /tools/google-maps-scraper](https://datacircle.dev/local-business-search-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-tools-google-maps-scraper/llms.txt)
- [Centorprat: local business search API pricing, 1 plan, POST /tools/google-maps-scraper-max](https://datacircle.dev/local-business-search-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-tools-google-maps-scraper-max/llms.txt)
- [Centorprat: news API pricing, 1 plan, POST /tools/google-news-scraper](https://datacircle.dev/news-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-tools-google-news-scraper/llms.txt)
- [Centorprat: news API pricing, 1 plan, POST /news](https://datacircle.dev/news-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-news/llms.txt)
- [Centorprat: LinkedIn company data API pricing, 1 plan, POST /tools/linkedin-company-scraper](https://datacircle.dev/linkedin-company-profile-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-tools-linkedin-company-scraper/llms.txt)
- [Centorprat: LinkedIn company data API pricing, 1 plan, POST /tools/linkedin-company-scraper-max](https://datacircle.dev/linkedin-company-profile-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-tools-linkedin-company-scraper-max/llms.txt)
- [Centorprat: LinkedIn job search API pricing, 1 plan, POST /tools/linkedin-jobs-scraper](https://datacircle.dev/linkedin-job-search-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-tools-linkedin-jobs-scraper/llms.txt)
- [Centorprat: LinkedIn job search API pricing, 1 plan, POST /tools/linkedin-jobs-scraper-max](https://datacircle.dev/linkedin-job-search-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-tools-linkedin-jobs-scraper-max/llms.txt)
- [Centorprat: tech stack API pricing, 1 plan, POST /tools/saas-stack-email-provider-detector](https://datacircle.dev/company-technology-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-tools-saas-stack-email-provider-detector/llms.txt)
- [Centorprat: tech stack API pricing, 1 plan, GET /shopify/store](https://datacircle.dev/company-technology-apis/centorprat/pay-as-you-go-x402-pay-per-call-get-shopify-store/llms.txt)
- [Centorprat: tech stack API pricing, 1 plan, POST /tools/wordpress-plugin-detector](https://datacircle.dev/company-technology-apis/centorprat/pay-as-you-go-x402-pay-per-call-post-tools-wordpress-plugin-detector/llms.txt)

## Centorprat: domain WHOIS API alternatives

- [How.is, pay as you go](https://datacircle.dev/domain-whois-apis/how-is/pay-as-you-go/llms.txt): $5.00 per 1,000, 56% complete, live
- [fetcher.cloud, pay as you go](https://datacircle.dev/domain-whois-apis/fetcher-cloud/pay-as-you-go/llms.txt): $5.00 per 1,000, 44% complete, live
- [Companyfacts, $10 pack](https://datacircle.dev/domain-whois-apis/companyfacts/10-pack/llms.txt): $5.00 per 1,000, 67% complete
- [DomainHelp, pay as you go, Pay per call with x402, 10 to 49 domains a request](https://datacircle.dev/domain-whois-apis/domainhelp/pay-as-you-go-pay-per-call-with-x402-10-to-49-domains-a-request/llms.txt): $5.00 per 1,000, 33% 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 2026-11-09.

- https://agent-data.centorprat.workers.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://agent-data.centorprat.workers.dev/.well-known/x402?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://agent-data.centorprat.workers.dev/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://agent-data.centorprat.workers.dev/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://agent-search.centorprat.workers.dev/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing