# 29 AI Rook alternatives in 2026

Last updated: November 9, 2026.

The best alternatives to AI Rook for domain WHOIS APIs: WhoisJSON, Enterno and IPAddress.to, by our benchmark. AI Rook's website is ai-rook.com.

## Domain WHOIS API alternatives

[WhoisJSON](https://datacircle.dev/domain-whois-apis/whoisjson/free#120-monthly), [Enterno](https://datacircle.dev/domain-whois-apis/enterno/free-scout#free-open-api) and [IPAddress.to](https://datacircle.dev/domain-whois-apis/ipaddress-to/free) are the best [domain WHOIS API providers](https://datacircle.dev/best-domain-whois-api) in the Datacircle benchmark.

On our [AI Rook plan pages](https://datacircle.dev/domain-whois-apis/ai-rook/free), we compare each AI Rook plan with other providers' plans. We list other providers' plans below, cheapest per 1,000 domains first.

- [Companyfacts, $49 monthly](https://datacircle.dev/domain-whois-apis/companyfacts/free#49-monthly): $2.45 per 1,000 domains
- [2s.io, pay as you go](https://datacircle.dev/domain-whois-apis/2s-io/free#pay-as-you-go): $2.50 per 1,000 domains
- [HackerTarget, $250 pack](https://datacircle.dev/domain-whois-apis/hackertarget/free#250-pack): $2.50 per 1,000 domains
- [Vee3, $5 monthly, Starter, GET /v1/domains/lookup](https://datacircle.dev/domain-whois-apis/vee3/free-get-v1-domains-lookup#5-monthly-starter-get-v1-domains-lookup): $2.50 per 1,000 domains
- [DR Checker, $15 monthly](https://datacircle.dev/domain-whois-apis/dr-checker/15-monthly): $75.00 per 1,000 domains
- [APICK, top-up from ₩55,000](https://datacircle.dev/domain-whois-apis/apick/top-up-from-55000): $75.07 per 1,000 domains
- [Cedula 360, COP 49,900 monthly](https://datacircle.dev/domain-whois-apis/cedula-360/cop-49900-monthly): $78.69 per 1,000 domains
- [Osint, $4.20 pack](https://datacircle.dev/domain-whois-apis/osint/free#4-20-pack): $84.00 per 1,000 domains

Compare every domain WHOIS API plan: [Domain WHOIS API pricing: free and cheapest plans compared](https://datacircle.dev/domain-whois-api-pricing)

## Email verification API alternatives

[pingutil](https://datacircle.dev/validate-email-apis/pingutil/free-api-key-post-v1-verify), [Validemail.co](https://datacircle.dev/validate-email-apis/validemail-co/free-get-api-v1-validate#9-90-monthly-9-90-month-get-api-v1-validate) and [looot](https://datacircle.dev/validate-email-apis/looot/top-up) are the best [email verification API providers](https://datacircle.dev/best-email-verification-api) in the Datacircle benchmark.

On our [AI Rook plan pages](https://datacircle.dev/validate-email-apis/ai-rook/free), we compare each AI Rook plan with other providers' plans. We list other providers' plans below, cheapest per 1,000 emails first.

- [Agent402 Tools, pay as you go](https://datacircle.dev/validate-email-apis/agent402-tools/pay-as-you-go): $1.00 per 1,000 emails
- [BillionVerify, $20 pack, Starter, POST /verify/bulk](https://datacircle.dev/validate-email-apis/billionverify/20-pack-starter-post-verify-bulk): $1.00 per 1,000 emails
- [DeBounce, top-up from $200, 200K credits, GET /v1/, Single email validation](https://datacircle.dev/validate-email-apis/debounce/free-100-free-credits-get-v1#top-up-from-200-200k-credits-get-v1): $1.00 per 1,000 emails
- [MillionPhones, $100 monthly](https://datacircle.dev/validate-email-apis/millionphones/free#100-monthly): $1.00 per 1,000 emails
- [Prime Verifier, $200 pack, Pay-As-You-Go 200,000 credits, POST /v1/verify/single](https://datacircle.dev/validate-email-apis/prime-verifier/free-post-v1-verify-single#200-pack-pay-as-you-go-200000-credits-post-v1-verify-single): $1.00 per 1,000 emails
- [Amazon SES, $500 monthly](https://datacircle.dev/validate-email-apis/amazon-ses/pay-as-you-go#500-monthly): $100.00 per 1,000 emails
- [EmailIQ, pay as you go, Pay-per-call with x402, POST /email/intelligence](https://datacircle.dev/validate-email-apis/emailiq/free#pay-as-you-go-pay-per-call-with-x402-post-email-intelligence): $100.00 per 1,000 emails
- [HubVibe, pay as you go](https://datacircle.dev/validate-email-apis/hubvibe/pay-as-you-go): $100.00 per 1,000 emails
- [PeopleDB, $200 pack, 2,000 credits, GET /email_verifications](https://datacircle.dev/validate-email-apis/peopledb/free-free-get-email-verifications#200-pack-2000-credits-get-email-verifications): $100.00 per 1,000 emails

Compare every email verification API plan: [Email verification API pricing: free and cheapest plans compared](https://datacircle.dev/email-verification-api-pricing)

## IP company lookup API alternatives

[IPKit](https://datacircle.dev/ip-company-lookup-apis/ipkit/free), [MxToolbox](https://datacircle.dev/ip-company-lookup-apis/mxtoolbox/free-get-api-v1-lookup-asn) and [Enterno](https://datacircle.dev/ip-company-lookup-apis/enterno/free-scout-get-api-v4-asn#free-open-api-get-api-open-ip) are the best [IP company lookup API providers](https://datacircle.dev/best-ip-company-lookup-api) in the Datacircle benchmark.

On our [AI Rook plan pages](https://datacircle.dev/ip-company-lookup-apis/ai-rook/free), we compare each AI Rook plan with other providers' plans. We list other providers' plans below, cheapest per 1,000 IP addresses first.

- [DomScan, $10 pack](https://datacircle.dev/ip-company-lookup-apis/domscan/free#10-pack): $1.00 per 1,000 IP addresses
- [Foundry, pay as you go](https://datacircle.dev/ip-company-lookup-apis/foundry/pay-as-you-go): $1.00 per 1,000 IP addresses
- [WhoisFreaks, $1,000 monthly, Monthly Subscription, 1,000,000 API Credits, POST /v1.0/geolocation](https://datacircle.dev/ip-company-lookup-apis/whoisfreaks/free-post-v1-0-geolocation#1000-monthly-monthly-subscription-1000000-api-credits-post-v1-0-geolocation): $1.00 per 1,000 IP addresses
- [ip2geo.dev, $10 monthly, Starter, POST /convert](https://datacircle.dev/ip-company-lookup-apis/ip2geo-dev/free-post-convert#10-monthly-starter-post-convert): $1.00 per 1,000 IP addresses
- [Osint, $4.20 pack](https://datacircle.dev/ip-company-lookup-apis/osint/free#4-20-pack): $84.00 per 1,000 IP addresses
- [HubVibe, pay as you go](https://datacircle.dev/ip-company-lookup-apis/hubvibe/pay-as-you-go): $100.00 per 1,000 IP addresses
- [NetIntel, pay as you go, x402 pay per call, GET /ip-risk/score](https://datacircle.dev/ip-company-lookup-apis/netintel/pay-as-you-go-x402-pay-per-call-get-ip-risk-score): $100.00 per 1,000 IP addresses
- [RelayShield, pay as you go, metered to a card](https://datacircle.dev/ip-company-lookup-apis/relayshield/free#pay-as-you-go-metered-to-a-card): $100.00 per 1,000 IP addresses

Compare every IP company lookup API plan: [IP company lookup API pricing: free and cheapest plans compared](https://datacircle.dev/ip-company-lookup-api-pricing)

## Web scraping API alternatives

[Scrappey](https://datacircle.dev/web-scraping-apis/scrappey/free-post-api-v1-direct-request#top-up-pay-as-you-go-post-api-v1-direct-request), [WebScraping.AI](https://datacircle.dev/web-scraping-apis/webscraping-ai/free-get-html-get-page-html-datacenter-proxy-no-js-rendering#29-monthly-personal-get-html-get-page-html-datacenter-proxy-no-js-rendering) and [APIFreaks](https://datacircle.dev/web-scraping-apis/apifreaks/free-one-off-10000-credits-post-scraping-web-scraper-api#100-monthly-monthly-1500000-credits-post-scraping-web-scraper-api) are the best [web scraping API providers](https://datacircle.dev/best-web-scraping-api) in the Datacircle benchmark.

On our [AI Rook plan pages](https://datacircle.dev/web-scraping-apis/ai-rook/free), we compare each AI Rook plan with other providers' plans. We list other providers' plans below, cheapest per 1,000 pages first.

- [AnyCrawler, $20 monthly, Builder, POST /v1/crawl/page, Render](https://datacircle.dev/web-scraping-apis/anycrawler/free-post-v1-crawl-page-render#20-monthly-builder-post-v1-crawl-page-render): $2.50 per 1,000 pages
- [Irmu, $25 pack, Starter Pack, GET /crawl, Premium fetch](https://datacircle.dev/web-scraping-apis/irmu/free-get-crawl-premium-fetch#25-pack-starter-pack-get-crawl-premium-fetch): $2.50 per 1,000 pages
- [Site-Shot, $5 monthly](https://datacircle.dev/web-scraping-apis/site-shot/free#5-monthly): $2.50 per 1,000 pages
- [Sofya, top-up from $10](https://datacircle.dev/web-scraping-apis/sofya/free#top-up-from-10): $2.50 per 1,000 pages
- [Osint, $4.20 pack](https://datacircle.dev/web-scraping-apis/osint/free#4-20-pack): $84.00 per 1,000 pages
- [Hystruct, $9 monthly](https://datacircle.dev/web-scraping-apis/hystruct/free#9-monthly): $90.00 per 1,000 pages
- [HubVibe, pay as you go, Pay per call, POST /work/extract/page](https://datacircle.dev/web-scraping-apis/hubvibe/pay-as-you-go-pay-per-call-post-work-extract-page): $100.00 per 1,000 pages
- [Urlbox, $510 monthly, Business (5,000 renders a month), POST /v1/render/async](https://datacircle.dev/web-scraping-apis/urlbox/free-7-day-free-trial-post-v1-render-async#510-monthly-business-5000-renders-a-month-post-v1-render-async): $102.00 per 1,000 pages

Compare every web scraping API plan: [Web scraping API pricing: free and cheapest plans compared](https://datacircle.dev/web-scraping-api-pricing)

## See also

- [Companyfacts alternatives](https://datacircle.dev/companyfacts-alternatives)
- [2s.io alternatives](https://datacircle.dev/2s-io-alternatives)
- [HackerTarget alternatives](https://datacircle.dev/hackertarget-alternatives)
- [Vee3 alternatives](https://datacircle.dev/vee3-alternatives)
- [DR Checker alternatives](https://datacircle.dev/dr-checker-alternatives)
- [APICK alternatives](https://datacircle.dev/apick-alternatives)
- [Cedula 360 alternatives](https://datacircle.dev/cedula-360-alternatives)
- [Osint alternatives](https://datacircle.dev/osint-alternatives)