# 23 DNSai alternatives in 2026

Last updated: November 7, 2026.

Other providers sell domain WHOIS APIs like DNSai's. DomScan, Enterno and Robtex each cost $0.00 per 1,000 domains.

## Domain WHOIS API alternatives

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

- [DomScan, free, POST /v1/whois/bulk](https://datacircle.dev/domain-whois-apis/domscan/free-post-v1-whois-bulk): $0.00 per 1,000 domains
- [Enterno, free, Scout](https://datacircle.dev/domain-whois-apis/enterno/free-scout): $0.00 per 1,000 domains
- [Robtex, free](https://datacircle.dev/domain-whois-apis/robtex/free): $0.00 per 1,000 domains
- [VebAPI, free](https://datacircle.dev/domain-whois-apis/vebapi/free): $0.00 per 1,000 domains
- [WhoisFreaks, free, POST /v2.0/bulkwhois/live](https://datacircle.dev/domain-whois-apis/whoisfreaks/free-post-v2-0-bulkwhois-live): $0.00 per 1,000 domains
- [Whoxy, $75 pack, 50,000 Whois Lookup API Queries](https://datacircle.dev/domain-whois-apis/whoxy/free-education#75-pack-50000-whois-lookup-api-queries): $1.50 per 1,000 domains
- [Netlas, $49 monthly](https://datacircle.dev/domain-whois-apis/netlas/49-monthly): $1.63 per 1,000 domains
- [JsonWhois, $55.57 monthly](https://datacircle.dev/domain-whois-apis/jsonwhois/free#55-57-monthly): $1.66 per 1,000 domains
- [domainIQ, $49.95 monthly, Pro, GET /api, 1,000 requests a day](https://datacircle.dev/domain-whois-apis/domainiq/49-95-monthly-pro-get-api-1000-requests-a-day): $1.67 per 1,000 domains
- [DataAndAPIs, $24.99 monthly](https://datacircle.dev/domain-whois-apis/dataandapis/free#24-99-monthly): $1.67 per 1,000 domains
- [DomainTools, contact us, Enterprise, GET /{domain}/whois/](https://datacircle.dev/domain-whois-apis/domaintools/contact-us-enterprise-get-domain-whois): no price per 1,000 domains
- [GuGuData, contact us](https://datacircle.dev/domain-whois-apis/gugudata/cny-49-monthly#contact-us): no price per 1,000 domains
- [HackerTarget, contact us](https://datacircle.dev/domain-whois-apis/hackertarget/free#contact-us): no price per 1,000 domains
- [Validin, contact us](https://datacircle.dev/domain-whois-apis/validin/contact-us): no price per 1,000 domains
- [ViewDNS.info, contact us](https://datacircle.dev/domain-whois-apis/viewdns-info/free#contact-us): no price 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)

## Tech stack API alternatives

On our [DNSai plan pages](https://datacircle.dev/company-technology-apis/dnsai/499-monthly), we compare each DNSai plan with other providers' plans. We list other providers' plans below, cheapest per 1,000 companies first.

- [DetectZeStack, $79 monthly, Mega, GET /changes](https://datacircle.dev/company-technology-apis/detectzestack/free-get-changes#79-monthly-mega-get-changes): $1.58 per 1,000 companies
- [The Companies API, $950 yearly](https://datacircle.dev/company-technology-apis/the-companies-api/free#950-yearly): $1.58 per 1,000 companies
- [WhatCMS, $80 monthly, 50,000 Detections, GET /API/Tech](https://datacircle.dev/company-technology-apis/whatcms/free-500-detections-get-api-tech#80-monthly-50000-detections-get-api-tech): $1.60 per 1,000 companies
- [Tomba, $59,988 yearly](https://datacircle.dev/company-technology-apis/tomba/free#59988-yearly): $1.67 per 1,000 companies
- [Skrapp, contact us, Custom plan, POST /api/v3/companies/bulk-enrich](https://datacircle.dev/company-technology-apis/skrapp/349-monthly-enterprise-50k-post-api-v3-companies-bulk-enrich#contact-us-custom-plan-post-api-v3-companies-bulk-enrich): no price per 1,000 companies
- [StackScan, contact us, Talk to sales, GET /v1/tech-lookup/domains/lookup](https://datacircle.dev/company-technology-apis/stackscan/39-monthly-pro-get-v1-tech-lookup-domains-lookup#contact-us-talk-to-sales-get-v1-tech-lookup-domains-lookup): no price per 1,000 companies
- [StoreCensus, contact us](https://datacircle.dev/company-technology-apis/storecensus/99-monthly#contact-us): no price per 1,000 companies
- [TechnologyChecker, contact us, Enterprise, GET /v1/domain/{domain}/history](https://datacircle.dev/company-technology-apis/technologychecker/free-get-v1-domain-domain-history#contact-us-enterprise-get-v1-domain-domain-history): no price per 1,000 companies

Compare every tech stack API plan: [Tech stack API pricing: free and cheapest plans compared](https://datacircle.dev/tech-stack-api-pricing)