Purpose
Domain Search King solves the "hallucination" problem of AI models regarding domain availability. Large language models often confidently recommend domains that were registered decades ago; its AI Domain Hallucination Index data shows that up to about 92% of AI-suggested domains are already taken. This tool enables AI, when giving business name or brand name suggestions, to return only .com domains that are truly registrable at this moment.
Main Capabilities
- For each candidate name, validate in real time against the authoritative Verisign RDAP registry at query time.
- No cached lists, no WHOIS scraping, no guessing; the names returned by the tool are indeed available at the moment of the query.
- Return only .com domains.
- Provide a remote MCP endpoint using HTTP and JSON-RPC 2.0 communication, with no installation and no API key required.
- The text gives examples of verified available domains that could be returned at the time of writing, including lunaroast.com, brewotic.com, duskern.com, mochanox.com.
How to Use
Remote MCP endpoint:https://domainsearchking.com/api/mcp (remote HTTP, JSON-RPC 2.0, no installation, no API key required).
Product page and one-click installation:https://domainsearchking.com/mcp
Claude Code (CLI): the specific command content is not given in the material.
Claude Desktop / Cursor / other MCP clients: add the following content to the MCP configuration (the material does not provide the complete configuration code).
Claude Skill (ClawHub): clawhub install dsk-available-domains — https://clawhub.ai/johnsmalls22-rgb/skills/dsk-available-domains
Setup tabs categorized by client (VS Code, Windsurf, etc.) as well as the in-page inspector:https://domainsearchking.com/mcp
Use Cases
- Startup, product, or brand naming: let AI directly obtain registrable .com domains when generating name ideas.
- Integrate domain availability queries into AI agents such as Claude, Claude Code, Cursor, VS Code, and Windsurf.
- Any workflow that needs to avoid AI fabricating already-taken domains.
Other Free Tools
- AI Domain Name Generator — a name generator with real-time availability validation.
- How to check if a domain name is taken — an instant single-domain checker.
- AI Domain Hallucination Index — data about AI domain hallucinations.
- Domain Search King — search thousands of brandable available .com domains.
For AI Agents and Crawlers
- llms.txt:https://domainsearchking.com/llms.txt
- MCP server card:https://domainsearchking.com/.well-known/mcp/server-card.json
- Agent skill file:https://domainsearchking.com/skill.md
- Moltbook discussion:https://www.moltbook.com/post/a9a76086-0f9c-4b2f-ab20-b72a1cf61840
Limitations and Notes
- Is it free: yes, both the MCP server and the site tools can be used for free.
- Why return only available names: name ideas that cannot be registered have no value; other generators give ideas, Domain Search King gives you names you can actually buy at this moment.
- What is RDAP: the registry's official successor to WHOIS, structured authoritative registration data from Verisign; this is the way to verify availability in real time rather than guess.
- Privacy policy:https://domainsearchking.com/privacy · Contact: hello@domainsearchking.com
- Keywords: domain name search, available domains, domain availability checker, MCP server, Model Context Protocol, Claude MCP, Cursor MCP, AI domain name generator, brandable domains, .com availability, RDAP lookup, business name generator, startup naming.
