4ai – premium .ai domains for sale
Search 254 premium .ai domains for sale, get free .ai value estimates and real .ai sales data.
使うべきか
品質と安全性
検出事項（4）
- LOWTool 'get_domain' description lacks action verbget_domain 内
- LOWTool 'list_categories' description lacks action verblist_categories 内
- LOWTool 'compare_domains' description lacks action verbcompare_domains 内
- LOWTool 'ai_domain_sales' description lacks action verbai_domain_sales 内
ツール定義とプロトコルへの準拠に関する自動分析に基づいています。
コンテキストコスト
これは、サーバーのツールがモデルのコンテキストに読み込まれるたびに消費されるおおよそのトークン数です。数が多いほど、ほかのタスクに使える注意が減ります。
インストール
ワンクリックインストール
これを `claude_desktop_config.json` ファイルに追加してください:
{
"mcpServers": {
"domains": {
"url": "https://4ai.ai/mcp"
}
}
}リモートエンドポイント
https://4ai.ai/mcpstreamable-httpできること
ツール一覧
ツール（10）
🟢search_domains(query, category, type, max_length, limit)
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.
入力スキーマ
{
"type": "object",
"properties": {
"query": {
"type": "string",
"description": "Word to look for in the domain name or a category word, e.g. \"quantum\", \"casino\", \"health\""
},
"category": {
"type": "string",
"description": "Category key, e.g. short, numeric, quantum, crypto, tech, ai, code, space, health, gaming, commerce, places, brands"
},
"type": {
"type": "string",
"enum": [
"numeric",
"short",
"one-word",
"two-word"
],
"description": "Kind of name"
},
"max_length": {
"type": "integer",
"description": "Maximum length of the name without .ai"
},
"limit": {
"type": "integer",
"description": "Maximum number of results (default 20, max 100)"
}
}
}🟢get_domain(domain)
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.
入力スキーマ
{
"type": "object",
"properties": {
"domain": {
"type": "string",
"description": "Domain name, with or without .ai"
}
},
"required": [
"domain"
]
}🟢list_categories
Categories of .ai domains in the 4ai portfolio, with what they are good for and how many names each has.
入力スキーマ
{
"type": "object",
"properties": {}
}🟢estimate_domain_value(domains)
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.
入力スキーマ
{
"type": "object",
"properties": {
"domains": {
"type": "array",
"items": {
"type": "string"
},
"description": "Domain names, e.g. [\"agent.ai\", \"888.ai\"]"
}
},
"required": [
"domains"
]
}🟢suggest_domains(description, max_length, limit)
Describe 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 for a .ai name for something.
入力スキーマ
{
"type": "object",
"properties": {
"description": {
"type": "string",
"description": "What the project, company or product does, in any words"
},
"max_length": {
"type": "integer",
"description": "Maximum length of the name without .ai"
},
"limit": {
"type": "integer",
"description": "Maximum number of results (default 10, max 50)"
}
},
"required": [
"description"
]
}🟢similar_domains(domain, limit)
Alternatives 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.
入力スキーマ
{
"type": "object",
"properties": {
"domain": {
"type": "string",
"description": "Domain name, with or without .ai"
},
"limit": {
"type": "integer",
"description": "Maximum number of results (default 8)"
}
},
"required": [
"domain"
]
}🟢get_offer_link(domain, amount_usd, note)
A 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.
入力スキーマ
{
"type": "object",
"properties": {
"domain": {
"type": "string",
"description": "Domain in the 4ai portfolio, e.g. \"quantumchip.ai\""
},
"amount_usd": {
"type": "integer",
"description": "Offer in USD (minimum 3000). Optional."
},
"note": {
"type": "string",
"description": "Short message to the seller, e.g. what the domain is for. Optional, max 300 characters."
}
},
"required": [
"domain"
]
}🟢compare_domains(domains)
Compare 2 to 5 .ai domain names side by side: length, type, words, whether 4ai sells it, estimated value ranges and a short verdict.
入力スキーマ
{
"type": "object",
"properties": {
"domains": {
"type": "array",
"items": {
"type": "string"
},
"description": "Domain names, e.g. [\"quantumchip.ai\", \"aiquantum.ai\"]"
}
},
"required": [
"domains"
]
}🟢how_buying_works
The 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.
入力スキーマ
{
"type": "object",
"properties": {}
}🟢ai_domain_sales(limit, max_length)
The biggest publicly reported .ai domain sales (price in USD, date, venue, source). Useful to estimate what a .ai domain is worth.
入力スキーマ
{
"type": "object",
"properties": {
"limit": {
"type": "integer",
"description": "Number of sales (default 20)"
},
"max_length": {
"type": "integer",
"description": "Only names up to this length without .ai"
}
}
}コミュニティ
エビデンス