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Cheapest Domains

Official registry E-commerce

Compare domain registration and renewal prices across registrars and check exact-name availability.

Source code Website Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http cheapest-domains 'https://www.cheapest.domains/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "cheapest-domains": {
            "type": "http",
            "url": "https://www.cheapest.domains/mcp"
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. Cheapest Domains integrations
  2. Install the plugin
  3. Install only the skill
  4. Connect only MCP
  5. Try it
  6. Scope and privacy
  7. Documentation and support
  8. License

Cheapest Domains integrations

Find domain names you can afford to keep. These integrations give an AI assistant domain-research instructions and access to the public Cheapest Domains service, focused on the real cost of keeping a domain: its annual renewal price. Compare renewals first, with initial registration prices shown separately, supported multi-year estimates, exact-name availability and registrar destinations. Your assistant generates the name ideas; Cheapest Domains supplies the evidence. Purchases happen at the registrar.

This repository contains the installable integrations for Codex, Claude Code, Cursor and other Agent Skills/MCP clients. It includes no application/server implementation, installation hooks, credentials or local service. Cheapest Domains requires no account or API key; your AI client has its own access requirements.

Install the plugin

Choose the commands for your client. The plugin includes both the skill and its remote MCP connection, so skip a duplicate standalone connection.

# Codex
codex plugin marketplace add igalil/cheapest-domains-integrations
codex plugin add cheapest-domains@cheapest-domains

# Claude Code
claude plugin marketplace add igalil/cheapest-domains-integrations
claude plugin install cheapest-domains@cheapest-domains

Start a new Codex chat or reload Claude's plugins after installation. In Claude Code, invoke /cheapest-domains:domain-research. In Codex, ask to use the Cheapest Domains domain-research skill.

Install only the skill

npx skills add igalil/cheapest-domains-integrations --skill domain-research

This installs instructions, not an MCP connection. Use a connected MCP server or the skill's public HTTPS fallback when your client permits network access. Skills.sh directory discovery depends on installation telemetry; this repository is not proof of a listing in any third-party directory.

Connect only MCP

Use https://cheapest.domains/mcp, Streamable HTTP, with no authentication. For Cursor or another compatible client, see the setup instructions. The same service is available through the public REST API.

Try it

Use Cheapest Domains to show three extensions with annual renewals at or below USD 15. Include source times and a comparison link. Do not check exact names.

For name suggestions, tell the assistant about your project, preferred style and budget. It checks suggestions by default within service limits. Ask for unchecked brainstorming if you do not want proposed names sent to checking providers.

Scope and privacy

The service compares selected registrars, not the whole market. Preserve original source dates, stale/partial coverage, premium uncertainty and minimum terms. Availability is temporary and does not reserve a name. The tools cannot buy, register, transfer or renew domains. Radar popularity is DNS activity, not SEO competition or availability, and retains its separate CC BY-NC 4.0 license.

The skill keeps project briefs local and sends only the query inputs needed for research. Exact-name checks can send a domain to the service and its checking providers. Query URLs may appear in hosting logs. See the privacy policy and terms.

Documentation and support

License

The integration files, documentation and marketplace catalogs are MIT licensed, copyright 2026 Ilios Galil (PerfWebsite). See LICENSE. Keep its notice when redistributing copies. This grant does not cover the private application or hosted server source, grant trademark rights, or replace service/third-party data terms. Forks should identify their own publisher rather than imply endorsement.

Frequently asked questions

What is Cheapest Domains?

Compare domain registration and renewal prices across registrars and check exact-name availability.

How do I install Cheapest Domains?

It runs as a remote server. In Claude Code: claude mcp add --transport http cheapest-domains 'https://www.cheapest.domains/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Cheapest Domains need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is Cheapest Domains open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains Cheapest Domains?

It is published by igalil. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.