SpryTools Domain Availability Checker API review
A low-cost API for domain checks, WHOIS data, and small batches of up to 10 domains.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
SpryTools Domain Availability Checker API is a REST-based tool for developers and businesses adding domain research to applications or workflows. It supports single-domain availability checks, bulk checks for up to 10 domains, WHOIS record lookups, domain suggestions, DNS-based availability detection, and API-key authentication. The product fits teams that want domain-search functions inside their own software rather than a separate browser-based research tool.
The pricing structure is simple. The Free plan provides API access. Starter costs €2.99 per month, Pro costs €8.99 per month, and Business costs €24.99 per month; each paid plan lists API access and is billed monthly. The published plan structure positions the paid tiers as options for higher usage on the shared SpryTools API platform, while the free tier gives developers a way to begin without a monthly charge. For small integrations, Starter offers a low entry price, while Pro and Business provide higher-priced monthly choices as usage needs increase.
Platform fit is the main decision point. The API can cover a focused domain workflow with availability checks, WHOIS information, DNS-based detection, and suggestions across popular extensions. API-key authentication supports controlled access from an application or internal workflow. At the same time, the product is available through an API only, so teams looking for a standalone interface should choose another type of domain search tool. Its bulk capability is also capped at 10 domains, making it better suited to small batches than broad, high-volume discovery. Choose SpryTools for a narrow, programmatic domain-search feature; look elsewhere for a wider research environment or larger batch workflows.
SpryTools Domain Availability Checker API pros and cons
- Where it wins
- Checks availability for single domains or batches of up to 10
- Combines WHOIS, DNS-based detection, and domain suggestions
- Free tier plus paid monthly plans starting at €2.99
- Where it doesn't
- API-only access does not provide a standalone search interface
- Bulk checks are limited to 10 domains per batch
- Feature scope centers on domain research and availability checks
SpryTools Domain Availability Checker API fact sheet, pricing and score →
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