WhoisJSON API
The facts below are what the maker publishes about WhoisJSON API, checked and dated. Our editors have not written about it yet.
Plans and prices
From WhoisJSON API's own pricing page, checked 7 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Basic | Free | 1,000 requests/month · 20 req/min · 1 monitored domain · JSON |
| Pro | $10 a month | 30,000 requests/month · 40 req/min · 5 monitored domains · JSON · Monthly; yearly billing costs 10 months for 12 months of access |
| Ultra | $30 a month | 150,000 requests/month · 60 req/min · 20 monitored domains · JSON · Monthly; yearly billing costs 10 months for 12 months of access |
| Scale | $50 a month | 1,000,000 requests/month · 100 req/min · 30 monitored domains · JSON · Monthly; yearly billing costs 10 months for 12 months of access |
| Mega | $80 a month | Unlimited requests · 100 req/min · 50 monitored domains · Monthly; yearly billing costs 10 months for 12 months of access |
| Giga | $120 a month | Unlimited requests · 200 req/min · 100 monitored domains · Monthly; yearly billing costs 10 months for 12 months of access |
| Tera | $200 a month | Unlimited requests · 300 req/min · 150 monitored domains · Monthly; yearly billing costs 10 months for 12 months of access |
| Titan | $399 a month | Unlimited requests · 600 req/min · 500 monitored domains · Monthly; yearly billing costs 10 months for 12 months of access |
| Atlas | $600 a month | Unlimited requests · 900 req/min · 500 monitored domains · Monthly; yearly billing costs 10 months for 12 months of access |
The facts
Each one read from WhoisJSON API's own pages, with the date it was checked.
What it does
- API documentation
- Yeschecked 20 Sep 2026
- Caching
- Responses are cached for a three-hour TTL, and _forceRefresh=1 bypasses the cache at a cost of two credits on most plans.checked 7 Oct 2026
- Commercial use
- The pricing page says all plans, including Basic, allow commercial use in SaaS products, internal tools, client dashboards, and business applications.checked 7 Oct 2026
- Coverage
- The service says it supports more than 1,500 generic and country-code TLDs and uses RDAP where supported.checked 7 Oct 2026
- Integrations
- Official clients are listed for PHP, Python 3.7+, and Node.js, and the MCP server is described as compatible with Claude, Cursor, and Windsurf.checked 7 Oct 2026
- Intended users
- The maker describes use cases for developers, cybersecurity professionals, businesses, brand protection, domain portfolio management, and DevOps.checked 7 Oct 2026
- Privacy
- The terms state that WhoisJSON does not sell, rent, or share personal information with third parties for marketing purposes.checked 7 Oct 2026
- Product
- WhoisJSON provides a REST API for WHOIS, DNS, SSL certificate, domain availability, email domain intelligence, subdomain discovery, and monitoring lookups.checked 7 Oct 2026
- Quota behavior
- After the monthly request quota is reached, further API calls return HTTP 429 until the next billing cycle.checked 7 Oct 2026
- Response formats
- API endpoints return JSON by default and can return XML with the format=xml parameter.checked 7 Oct 2026
- Security
- The pricing page states that all traffic is encrypted end-to-end and the service is HTTPS-only.checked 7 Oct 2026
- Support
- The API documentation says the support team typically responds within a few hours.checked 7 Oct 2026
Money
- Free plan
- Yeschecked 20 Sep 2026
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