Integrate DomainKits with your system.
All DomainKits features available through a simple REST API.
Connect domain data to your own systems and workflows.
The core of the API is research: query six domain inventories by keyword, or browse an entire gTLD, then stack filters for length, age, composition and sale status until millions of names narrow down to a decision-ready shortlist.
From there the endpoints chain together. A typical flow: search a keyword across newly registered domains, check WHOIS and safety on the interesting ones, confirm how the keyword is trending, then see whether matching names are listed for sale.
Brand protection teams watch each day's new registrations for names that contain their brand, and check WHOIS, DNS and safety status on anything suspicious. Domain investors filter expiring inventory by age, length and drop date to feed acquisition pipelines, and track marketplace supply by TLD or keyword to read the market before bidding.
Product builders use the same endpoints for registrar-style search experiences, portfolio dashboards that track listing status for held names, or research tools built on registration trend data.
Coverage is gTLD-focused, spanning all the gTLDs we track. The data is compiled from public sources and does not include ccTLD zones, so totals can differ from registry-reported figures. Search indexes and trend series refresh daily; WHOIS, DNS and safety lookups run live at request time. Trend windows span 7 to 180 days.
API access is included with Premium and higher plans. Authentication is a single key sent in a request header, and the same key works for both the REST API and the DomainKits MCP Server. API usage is metered separately from your web and MCP limits, so API calls do not consume the quotas you use elsewhere. Every response carries rate limit headers, and per-endpoint limits are listed in the API reference (sign in required).