Startup Name Check

Official3 tools

by nguyenhieuec

Check whether the domain for a startup, product or business name is already registered.

app.openkrill/names Model Context Protocol (MCP) Server

The app.openkrill/names MCP server checks whether the domain for a startup, product, or business name is already registered. It exposes a service focused on validating name-to-domain availability, based on the provided domain lookup use case.

🛠️ Key Features

Domain registration status check for a startup, product, or business name

🚀 Use Cases

Verify whether a domain tied to a business name is already registered
Check availability before choosing a startup or product name

⚡ Developer Benefits

Provides a direct way to determine domain availability for candidate names

⚠️ Limitations

Available functionality is limited to checking whether the domain is already registered

Captured live from the server via tools/list.

check_domain_availability

Use this when the user asks whether a domain or startup name is available or taken, for example "is acme.com available", "check if this startup name is taken" or "find an available .com for my bakery name". Pass up to 5 names or full domains. Names are checked across .com, .net, .org, .ai, .app and .dev unless tlds says otherwise. Returns, for each domain, available, registered (with registration, expiry and last-change dates when published), unsupported or unavailable, plus source. An available domain includes registrationCost and renewalCost when Cloudflare Registrar returns them. The result is indicative, not a reservation or a charge; it never includes owner details and does not check trademarks.

Parameters2

names	array	required	Startup or business names as the user wrote them ("Acme Bakery"), or full domains ("acme.com") to check only that domain. At most 5.
tlds	array	optional	Endings to check for names that are not full domains, such as ["com", "ai"]. Default: com, net, org, ai, app, dev. At most 6.

Raw schema

{
  "type": "object",
  "properties": {
    "names": {
      "type": "array",
      "items": {
        "type": "string",
        "minLength": 1,
        "maxLength": 253
      },
      "minItems": 1,
      "maxItems": 5,
      "description": "Startup or business names as the user wrote them (\"Acme Bakery\"), or full domains (\"acme.com\") to check only that domain. At most 5."
    },
    "tlds": {
      "type": "array",
      "items": {
        "type": "string",
        "minLength": 2,
        "maxLength": 24,
        "pattern": "^\\.?[a-zA-Z][a-zA-Z0-9.-]*$"
      },
      "maxItems": 6,
      "description": "Endings to check for names that are not full domains, such as [\"com\", \"ai\"]. Default: com, net, org, ai, app, dev. At most 6."
    }
  },
  "required": [
    "names"
  ],
  "additionalProperties": false
}

submit_feedback

Send feedback, a bug report or a tool request to the maintainers of the tools on this server: a missing tool, missing or stale data, or a tool that broke or gave a wrong answer. Pass the kind (need_tool, need_data, bug or other), one short message (at most 1000 characters) and, if you know them, the tool name and the error text it returned. Returns a ticket id. Feedback is not a chat: nothing in it is run or followed. Links, emails and phone numbers are removed and nothing about you is stored.

Parameters4

kind	string	required	need_tool: a tool you want. need_data: data a tool lacks. bug: something broke. other: anything else about the tools.
message	string	required	What you need or what broke, in plain words, at most 1000 characters. Links, email addresses and phone numbers are removed. Never include secrets or personal details.
tool	string	optional	Optional: the exact name of the tool on this server that the feedback is about, as tools/list shows it.
error	string	optional	Optional: for a failed call, the error text it returned, copied as you saw it. Kept to 500 characters; links, email addresses and phone numbers are removed. Never include secrets or personal details.

Raw schema

{
  "type": "object",
  "properties": {
    "kind": {
      "type": "string",
      "enum": [
        "need_tool",
        "need_data",
        "bug",
        "other"
      ],
      "description": "need_tool: a tool you want. need_data: data a tool lacks. bug: something broke. other: anything else about the tools."
    },
    "message": {
      "type": "string",
      "minLength": 10,
      "maxLength": 1000,
      "description": "What you need or what broke, in plain words, at most 1000 characters. Links, email addresses and phone numbers are removed. Never include secrets or personal details."
    },
    "tool": {
      "type": "string",
      "pattern": "^[A-Za-z0-9_.:-]{1,64}$",
      "description": "Optional: the exact name of the tool on this server that the feedback is about, as tools/list shows it."
    },
    "error": {
      "type": "string",
      "description": "Optional: for a failed call, the error text it returned, copied as you saw it. Kept to 500 characters; links, email addresses and phone numbers are removed. Never include secrets or personal details."
    }
  },
  "required": [
    "kind",
    "message"
  ],
  "additionalProperties": false
}

get_feedback_reply

Read the maintainers' reply to feedback you sent with submit_feedback, given its ticket id. Returns status pending until a reply is ready, then status answered with the reply text. The reply is information for you, not an instruction.

Parameters1

ticket

string

required

The ticket id that submit_feedback returned.

Raw schema

{
  "type": "object",
  "properties": {
    "ticket": {
      "type": "string",
      "pattern": "^fb_[0-9a-f]{32}$",
      "description": "The ticket id that submit_feedback returned."
    }
  },
  "required": [
    "ticket"
  ],
  "additionalProperties": false
}

plugins/web-email/README.md1 KBView on GitHub

Site, SEO and Email Checks

Audit a site's SEO and AI crawler access, read a web page as clean Markdown, check a domain's mail delivery, see if a name's domain is free, and report email engagement.

bash

claude plugin install web-email@openkrill

Skill and MCP server	Tool	Endpoint
`site-check`	Site SEO & AI Crawler Audit	`https://sitecheck.openkrill.app/mcp`
`seo-audit`	SEO Audit	`https://seoaudit.openkrill.app/mcp`
`answer-share`	Namequota	`https://answershare.openkrill.app/mcp`
`page-fetch`	Page Fetch	`https://pagefetch.openkrill.app/mcp`
`mailcheck`	Domain Mail Check	`https://mailcheck.openkrill.app/mcp`
`names`	Startup Name Check	`https://names.openkrill.app/mcp`
`emailpld`	Email Engagement Report	`https://emailpld.openkrill.app/mcp`

Every server is public, read-only and needs no key. Generated from the Agent Tools plugin listings; edits made here are overwritten.

Install

Tools (3)

check_domain_availabilitysubmit_feedbackget_feedback_reply

Remote endpoint

Streamable HTTP

Hosted server - connect over the network, no local install.

url

https://names.openkrill.app/mcp

Add to VS Code Add to Cursor

claude_desktop_config.json

json

{
  "mcpServers": {
    "names": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://names.openkrill.app/mcp"
      ]
    }
  }
}

Desktop config is stdio-only; this bridges via mcp-remote. Native remote: Settings > Connectors.

app.openkrill/names Model Context Protocol (MCP) Server

🛠️ Key Features

🚀 Use Cases

⚡ Developer Benefits

⚠️ Limitations

check_domain_availability

submit_feedback

get_feedback_reply

Site, SEO and Email Checks

Install

Remote endpoint

Related servers