4ai – premium .ai domains for sale
ai.4ai/domains4ai.aistreamable-httpv1.0.0Scanned
Search 254 premium .ai domains for sale, get free .ai value estimates and real .ai sales data.
5 tools: 2 change things and 3 only read.
- Reads private data · 0
- Reads text others write · 0
- Can send data out · 0
- No findings
Anlyon alternative
2 of these tools change something. Run those as governed actions.
Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.
Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.
Import an OpenAPI spec →Tools
Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.
5 tools
Changes things 2Claude Code: ask
ai_domain_salesThe biggest publicly reported .ai domain sales (price in USD, date, venue, source).No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it The biggest publicly reported .ai domain sales (price in USD, date, venue, source). Useful to estimate what a .ai domain is worth.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false
estimate_domain_valueFree value estimate for any .ai domain name: auction, marketplace and brokerage values with likely ranges, the type of name, a short verdict and notes.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it Free value estimate for any .ai domain name: auction, marketplace and brokerage values with likely ranges, the type of name, a short verdict and notes. Also says if the name is for sale on 4ai, with an offer link. Up to 100 names per call.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false
Only reads 3Show 3 read-only tools
get_domainDetails for one domain in the 4ai portfolio (for example "p0.ai"): categories, page, offer link, and comparable public .ai sales.No findings
Why it is in this group
- The name "get_domain" says "get": a word for reading.
Description, as the server wrote it Details for one domain in the 4ai portfolio (for example "p0.ai"): categories, page, offer link, and comparable public .ai sales. Says so if the domain is not in the portfolio.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false
list_categoriesCategories of .ai domains in the 4ai portfolio, with what they are good for and how many names each has.No findings
Why it is in this group
- The name "list_categories" says "list": a word for reading.
Description, as the server wrote it Categories of .ai domains in the 4ai portfolio, with what they are good for and how many names each has.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false
search_domainsSearch the 4ai.ai portfolio of premium .ai domain names for sale.No findings
Why it is in this group
- The name "search_domains" says "search": a word for reading.
Description, as the server wrote it Search the 4ai.ai portfolio of premium .ai domain names for sale. Filter by a word in the name, a category (see list_categories), type and maximum length. Every result has an offer link.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Exfil surface
Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.
No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or untrusted-input or outbound.
- Reads private data0
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write0
- Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
- Can send data out0
- Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.
Findings
Matches of fixed checks, with the text they matched.
No check matched anything in these tool definitions. That is not a safety guarantee.
History
Changes to its tool definitions and to its remote endpoint, newest first.
No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.
Install
Pinned to version 1.0.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http domains https://4ai.ai/mcpclaude mcp add --transport http domains https://4ai.ai/mcpRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__domains__search_domains",
"mcp__domains__get_domain",
"mcp__domains__list_categories"
],
"ask": [
"mcp__domains__estimate_domain_value",
"mcp__domains__ai_domain_sales"
],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as domains. Review it before you use it.
Pin
Keep the decision: fail CI when the tools change, follow every change, or show a badge.
Pin in CI
Fail a build when the tools you reviewed are not the tools the server serves today.
curl -s "https://anlyon.dev/api/v1/servers/ai.4ai/domains/verify?hash=7d501529ccb02ddc5978ac9298cd74b9ffd6d0aff039932937fc75abb1fa1eac" | jq -e '.changed == false'Pinned hash 7d501529ccb0, from Nov 1, 2026, 04:17 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/ai.4ai/domains/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/ai.4ai/domains)Source: MCP Registry. Synced Nov 1, 2026, 04:17 UTC.