WhoisFreaks Domain Availability API
WhoisFreaks Domain Availability API: A broad availability API for teams that need programmatic domain research at scale. Ranked #11 of 34 in Domain Search Tools by our editors (6.6/10); pricing: Free plan · paid from $75/mo (annual); best for enterprise-grade availability API integrations.
At a glance
- Editor score6.6 / 10
- PricingFree plan · paid from $75/mo (annual)
- Best forEnterprise-grade availability API integrations
- Free planYes
- Paid from$75/mo
- Bulk search limit100
- Facts checked20 Sep 2026
Where it wins
- Covers 1,529 TLDs with real-time WHOIS and DNS checks
- Supports bulk checks for up to 100 domains or custom TLDs
- Offers JSON, XML, SDKs, and integrations across major languages
Where it doesn't
- Paid access starts at $75 per month when billed annually
- Bulk checks are limited to 100 domains or custom TLDs
- Bulk upload is not included
Our verdict on WhoisFreaks Domain Availability API
WhoisFreaks Domain Availability API is a programmatic tool for checking domain registration availability across supported top-level domains. It combines single-domain lookups, bulk searches, custom TLD checks, domain suggestions, and real-time WHOIS and DNS-based checks. The product is aimed at domain registrars, hosting providers, digital agencies, brand-protection teams, domain investors, and applications that need availability data through an API rather than a standalone search interface.
Pricing is structured around free credits, one-time credits, and subscriptions. The Free plan includes 500 API credits with no credit card required. The API Credits plan costs $150 one time and provides 50,000 credits that do not expire, with live requests at 80 rpm, bulk requests at 20 rpm, and historical or reverse requests at 10 rpm. The Yearly Subscription costs $75 per month billed annually and includes 50,000 credits per month with the same request limits. The Monthly Subscription costs $75 per month and includes 50,000 API credits with those limits. Paid plans add substantially more capacity than the free tier, while the one-time plan suits workloads that do not need recurring credits.
Its ecosystem fit is a central strength. Official SDK integrations cover Python, JavaScript, TypeScript, Java, Kotlin, C# / .NET, Ruby, Go, Swift, and PHP, while additional integrations include Make, MISP, Microsoft Security Copilot, MCP Server, and Postman. API-key authentication and JSON or XML responses support varied application architectures. The breadth is useful for enterprise integrations, but the product is less suited to teams seeking a simple consumer-facing domain search tool or bulk workflows that require uploads beyond the 100-domain and 100-custom-TLD limits. Choose it when coverage, automation, and integration options matter more than the $75 monthly starting price.
WhoisFreaks Domain Availability API pricing
All 4 WhoisFreaks Domain Availability API plans and prices →
WhoisFreaks Domain Availability API fact sheet
| Free plan | Yes |
|---|---|
| Paid from | $75/mo |
| TLD count | 1529 |
| Bulk search limit | 100 |
| Domain variations | Advanced |
| Bulk upload | No |
| Export options | Multiple |
| API access | Yes |
| Deployment | Cloud |
| Platforms | Web |
| Compliance & security | GDPR |
| Support | Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 16 integrations: Python, JavaScript, TypeScript, Java, Kotlin, C# / .NET … See all → |
| Pricing | Free plan · paid from $75/mo (annual) (source) |
| Website | whoisfreaks.com |
| Facts checked | 20 Sep 2026 |
WhoisFreaks Domain Availability API integrations
WhoisFreaks Domain Availability API lists 16 integrations on its own site.
- Python
- JavaScript
- TypeScript
- Java
- Kotlin
- C# / .NET
- Ruby
- Go
- Swift
- PHP
- Make
- MISP
- Microsoft Security Copilot
- MCP Server
- Postman
- n8n
See all WhoisFreaks Domain Availability API integrations →
Alternatives to WhoisFreaks Domain Availability API
- Instant Domain SearchA broad free domain research suite with AI, bulk search, exports, and registrar comparisons.9.8
- DomainDiscoveryA broad free domain research toolkit for discovery, checking, and comparison.8.6
- DomaintorA broad domain search tool with AI suggestions, bulk checks, social checks, and API access.7.8
See all WhoisFreaks Domain Availability API alternatives →
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Guides on domain search tools
- How to Check If a Domain Is Available (& 10 Domain Search Tools)Aug 2026
- How to Check Domain Name Availability (Domain Search Tools)Aug 2026
Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
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