4ai – premium .ai domains for sale
Search 254 premium .ai domains for sale, get free .ai value estimates and real .ai sales data.
Should I use this
Quality & Safety
Findings (4)
- LOWTool 'get_domain' description lacks action verbin get_domain
- LOWTool 'list_categories' description lacks action verbin list_categories
- LOWTool 'compare_domains' description lacks action verbin compare_domains
- LOWTool 'ai_domain_sales' description lacks action verbin ai_domain_sales
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"domains": {
"url": "https://4ai.ai/mcp"
}
}
}Remote endpoints
https://4ai.ai/mcpstreamable-httpWhat it can do
Tool inventory
Tools (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.
Input Schema
{
"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.
Input Schema
{
"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.
Input Schema
{
"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.
Input Schema
{
"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.
Input Schema
{
"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.
Input Schema
{
"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.
Input Schema
{
"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.
Input Schema
{
"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.
Input Schema
{
"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.
Input Schema
{
"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"
}
}
}Community
Evidence