Context7
Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.
Description from the maker (original English)
Search 254 premium .ai domains for sale, get free .ai value estimates and real .ai sales data.
These three are never merged into one score: opinions, measurements and popularity are different things.
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
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Works in Claude on the web, desktop and mobile:
https://4ai.ai/mcpRun this in your terminal
claude mcp add --transport http domains https://4ai.ai/mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"domains": {
"url": "https://4ai.ai/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Paste into .vscode/mcp.json in your project
{
"servers": {
"domains": {
"type": "http",
"url": "https://4ai.ai/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
ChatGPT connects only to servers on the internet:
https://4ai.ai/mcpMenu names can differ slightly by plan and over time.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
Tool names and descriptions exactly as the server reported them on Nov 6, 2026. The maker wrote them, not us; we show them as plain text.
search_domainsSearch 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.
get_domainDetails 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.
list_categoriesCategories of .ai domains in the 4ai portfolio, with what they are good for and how many names each has.
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. Also says if the name is for sale on 4ai, with an offer link. Up to 100 names per call.
suggest_domainsDescribe a company, product or idea in plain words (e.g. "telehealth app for mental health", "crypto casino", "quantum chip startup") and get the best-fitting .ai domains from the 4ai portfolio, ranked, each with the reason it fits and an offer link. Use this when the user asks f
similar_domainsAlternatives to a .ai domain: give any name (taken, too expensive, or one the user already likes) and get the closest .ai domains that are for sale on 4ai.
get_offer_linkA link to the offer form for a 4ai domain with the amount (and an optional note) filled in. Nothing is sent: the user opens the link, checks the offer and sends it. Minimum offer $3,000.
compare_domainsCompare 2 to 5 .ai domain names side by side: length, type, words, whether 4ai sells it, estimated value ranges and a short verdict.
how_buying_worksThe steps, payment (Escrow.com), fees, minimum offer and transfer time for buying a .ai domain from 4ai. Use it when the user asks whether buying is safe or how it works.
ai_domain_salesThe biggest publicly reported .ai domain sales (price in USD, date, venue, source). Useful to estimate what a .ai domain is worth.
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026
The registry lists no source repo, so we cannot match the publisher (4ai.ai) to the code
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
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Read 10 tool descriptions and found no hidden instructions to the AI
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 2 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
The registry does not list a required key, though some servers ask you to sign in on first use.
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
The GitHub repo last changed –, and the latest version (1.0.0) reached the registry 6 days ago.
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
In the same category: Context7, Codebase Memory, Exa
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
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No README found in the repo