4ai – premium .ai domains for sale

ai.4ai/domainsVersion 1.0.0

Search 254 premium .ai domains for sale, get free .ai value estimates and real .ai sales data.

Status

Responds163 msNov 14, 2026, 13:26 UTCAnswered our handshake without sign-in.

Registry data may be out of date

We could not refresh it, so this page shows the last copy.

Last checked: Nov 14, 2026, 13:26 UTC
Latency: 163 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://4ai.ai/mcpResponds163 msNov 14, 2026, 13:26 UTC

No sign-in

Claude Code

claude mcp add --transport http domains https://4ai.ai/mcp

Claude Desktop and claude.ai

1
2
3

Settings > Connectors > Add custom connector
Name: domains
Remote MCP server URL: https://4ai.ai/mcp

Cursor

{
  "mcpServers": {
    "domains": {
      "url": "https://4ai.ai/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"domains","type":"http","url":"https://4ai.ai/mcp"}'

Built your own server? run.zero hosts MCP servers on European infrastructure.

Host your own MCP server on run.zero

Tools

10 tools

Tools of 4ai – premium .ai domains for sale
	Description		Read-only	Idempotent	Open world
`ai_domain_sales`The biggest publicly reported .ai domain sales (price in USD, date, venue, source). Useful to estimate what a .ai domain is worth.	The biggest publicly reported .ai domain sales (price in USD, date, venue, source). Useful to estimate what a .ai domain is worth.	Not declared	Yes	Not declared	No
`compare_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.	Compare 2 to 5 .ai domain names side by side: length, type, words, whether 4ai sells it, estimated value ranges and a short verdict.	Not declared	Yes	Not declared	No
`estimate_domain_value`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.	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.	Not declared	Yes	Not declared	No
`get_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.	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.	Not declared	Yes	Not declared	No
`get_offer_link`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.	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.	Not declared	Yes	Not declared	No
`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.	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.	Not declared	Yes	Not declared	No
`list_categories`Categories of .ai domains in the 4ai portfolio, with what they are good for and how many names each has.	Categories of .ai domains in the 4ai portfolio, with what they are good for and how many names each has.	Not declared	Yes	Not declared	No
`search_domains`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.	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.	Not declared	Yes	Not declared	No
`similar_domains`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.	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.	Not declared	Yes	Not declared	No
`suggest_domains`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.	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.	Not declared	Yes	Not declared	No

Details

Registry status: Active
Published: Nov 1, 2026
Updated: Nov 1, 2026
Website: https://4ai.ai/for-ai-agents/⁠ (opens in a new tab)
Repository: Not given
Categories (suggested): CRMSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

Are you the operator? Claim this listing