About Cheapest Domains
Cheapest Domains provides domain-research instructions and access to a service that compares registrar prices, emphasizing annual renewal costs. It is for domain researchers using AI clients and includes an Agent Skill and a remote MCP connection.
Key features
- 01Compare annual renewal prices across selected registrars
- 02Show registration prices separately
- 03Estimate supported multi-year costs
- 04Check exact-name availability
- 05Provide registrar destinations and comparison links
Use cases
- 01Compare renewal costs before choosing a domain extension
- 02Check availability of proposed domain names
- 03Estimate domain costs over multiple years
- 04Research domain options within a budget
MCP support
The integration includes a remote MCP connection at `https://cheapest.domains/mcp` using Streamable HTTP, with no authentication. MCP tools access the public domain research service; they cannot purchase, register, transfer, or renew domains.
Configuration
Remote servers need no local install. Pick your client, then copy the config or install in one click.
https://www.cheapest.domains/mcpclaude mcp add --transport http domains-cheapest-cheapest-domains https://www.cheapest.domains/mcp{"mcpServers":{"domains-cheapest-cheapest-domains":{"type":"http","url":"https://www.cheapest.domains/mcp"}}}Open in Cursor{"servers":{"domains-cheapest-cheapest-domains":{"type":"http","url":"https://www.cheapest.domains/mcp"}}}Open in VS Code{"mcpServers":{"domains-cheapest-cheapest-domains":{"type":"http","url":"https://www.cheapest.domains/mcp"}}}{"mcpServers":{"domains-cheapest-cheapest-domains":{"serverUrl":"https://www.cheapest.domains/mcp"}}}Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.
Tools
12| Parameter | Type | Required | Description |
|---|---|---|---|
| q | string | No | TLD search: .com is exact; com is partial. Separate alternatives with commas or spaces. |
| name | string | No | One ASCII domain label without the extension, such as myproject. Price and link tools only build links from it; availability and popularity tools send the exact domain to their providers. |
| sort | enum | No | Ranking metric. Total uses a conservative new-registration estimate.renewal | registration | total |
| view | enum | No | Best returns one winner per TLD; all returns every matching registrar offer.best | all |
| limit | integer | No | Maximum number of results, up to 200. |
| years | integer | No | Planning horizon in years, including initial registration. |
| format | enum | No | Response representation. CSV and Markdown use the same filters, order and bounded pagination; they contain main offers, not favorite comparison arrays. MCP retains structured JSON alongside rendered text.json | csv | markdown |
| offset | integer | No | Result offset. Follow pagination.next for additional results; the feed can change between requests. |
| orderBy | enum | No | Order results by the selected price metric or extension. Cheapest-per-extension winners are selected before ordering.price | extension |
| direction | enum | No | Ascending or descending result order. Unknown totals follow priced totals in either price direction.asc | desc |
| favorites | string | No | Up to two distinct connected registrar IDs, comma-separated. Adds saved favorite offers and fresh baselines for this result page, independent of filters. Does not save preferences or check names. |
| hideJumps | boolean | No | Exclude current renewal prices greater than twice registration. |
| registrar | string | No | Connected registrar ID from the registrars endpoint. Omit to compare all. |
| registrars | string | No | Comma-separated connected registrar IDs to compare together. Use instead of registrar. Cheapest-per-extension winners are chosen within this set. |
| includeStale | boolean | No | Accepted for compatibility. Saved prices stay in results until a successful refresh replaces them and are labeled stale. includeStale=true still requires view=all. |
| maxRenewalCents | integer | No | Maximum annual renewal in integer USD cents; 1000 means USD 10. |
| hideCountryCodes | boolean | No | Exclude two-letter country-code extensions. |
Details
From the project READMECheapest 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
- Plugin installation, data handling and license scope
- Bundled skill
- API reference
- Public setup guide
- Integration issues
- Service support: [email protected]
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.
Comments
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