What is Whois JSON API used for?

Whois JSON API is an REST API returning WHOIS and RDAP records, live DNS answers, bulk lookups and domain availability as JSON, plus dashboard monitoring of domain changes. It is a good fit for developers adding domain data to an application and monitoring a portfolio of domains for changes.

How much does Whois JSON API cost?

Paid plans for Whois JSON API start at $49 per month, and there is no free plan. A free trial is available.

Is Whois JSON API open source?

No. Whois JSON API is proprietary (closed-source) software and can't be self-hosted. In the API Tools category, open-source options include DummyJSON, Nango and CodeChat.

What are some alternatives to Whois JSON API?

Whois JSON API competes with APILayer.

Whois JSON API: features, pricing and alternatives

About Whois JSON API

Whois JSON API is a set of developer APIs for domain data. The WHOIS and RDAP API returns structured registration details such as registrar, nameservers, status and dates. A DNS Records API fetches live answers grouped by record type: CAA, SOA, CNAME, TXT, NS, MX, AAAA and A. Responses are in JSON, and the site also offers free WHOIS lookup, DNS lookup and domain age checker tools.

Bulk WHOIS handles batches of as many as 20 domains per call and returns a result for each one, and a Domain Availability API checks whether a name can be registered. In the signed-in dashboard, Domain Monitoring watches configured WHOIS, RDAP and DNS sources, shows exactly what changed against the previous values with a change history, and notifies you by email alert or signed webhook. The service is hosted and has documentation and a pricing page, and visitors can start a free trial.

Key features

Structured WHOIS and RDAP lookups in JSON
Live DNS records by type
Bulk WHOIS for up to 20 domains
Domain availability checks
Dashboard monitoring of WHOIS and DNS changes
Change history with previous and current values
Email alerts and signed webhooks

Good fit for

Developers adding domain data to an application
Monitoring a portfolio of domains for changes

Tags: whois; rdap; dns; api; domain-monitoring; developer-tools; json; domains

Whois JSON API: questions and answers

What is Whois JSON API used for?: Whois JSON API is an REST API returning WHOIS and RDAP records, live DNS answers, bulk lookups and domain availability as JSON, plus dashboard monitoring of domain changes. It is a good fit for developers adding domain data to an application and monitoring a portfolio of domains for changes.
How much does Whois JSON API cost?: Paid plans for Whois JSON API start at $49 per month, and there is no free plan. A free trial is available.
Is Whois JSON API open source?: No. Whois JSON API is proprietary (closed-source) software and can't be self-hosted. In the API Tools category, open-source options include DummyJSON, Nango and CodeChat.
What are some alternatives to Whois JSON API?: Whois JSON API competes with APILayer.