How do I install Namecheap?

Namecheap is a local plugin. Install it using npm package: namecheap-api-mcp and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

Is Namecheap safe to use?

Namecheap scored 5.2/10 (moderate risk) in MCP Marketplace's automated security scan. It has 5 high or critical findings to review. It's listed, but review the security report on this page before installing.

What credentials does Namecheap need?

Namecheap requires the following credentials or environment variables: NAMECHEAP_API_USER, NAMECHEAP_API_KEY, NAMECHEAP_CLIENT_IP, NAMECHEAP_USERNAME, NAMECHEAP_ENVIRONMENT. You can find setup instructions on the server detail page.

What AI apps work with Namecheap?

Namecheap uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Namecheap MCP Server

by Lanternrow

Developer ToolsModerate5.2MCP RegistryLocal

Free

Server data from the Official MCP Registry

Namecheap API — domains, DNS, contacts, registrar lock, SSL listing, and pricing.

About

Namecheap API — domains, DNS, contacts, registrar lock, SSL listing, and pricing.

Security Report

5.2

Moderate5.2Moderate Risk

This is a well-designed MCP server for the Namecheap API with strong security practices around credential handling and permission scoping. Credentials are properly stored in environment variables only, the codebase is clean and well-documented, and the server deliberately excludes irreversible or payment-related operations. Minor code quality improvements around error handling specificity would strengthen the implementation further. Supply chain analysis found 8 known vulnerabilities in dependencies (1 critical, 4 high severity). Package verification found 1 issue.

5 files analyzed · 13 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

env_vars

Check that this permission is expected for this type of plugin.

HTTP Network Access

Connects to external APIs or services over the internet.

What You'll Need

Set these up before or after installing:

Namecheap account username (API user)Optional

Environment variable: NAMECHEAP_API_USER

Namecheap API key from Profile -> Tools -> API AccessRequired

Environment variable: NAMECHEAP_API_KEY

Whitelisted public IPv4 of the machine running this serverOptional

Environment variable: NAMECHEAP_CLIENT_IP

Username a command runs on behalf of. Defaults to NAMECHEAP_API_USER; differs only for reseller sub-users.Optional

Environment variable: NAMECHEAP_USERNAME

API environment: "production" (default) or "sandbox"Optional

Environment variable: NAMECHEAP_ENVIRONMENT

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-lanternrow-namecheap-api-mcp": {
      "env": {
        "NAMECHEAP_API_KEY": "your-namecheap-api-key-here",
        "NAMECHEAP_API_USER": "your-namecheap-api-user-here",
        "NAMECHEAP_USERNAME": "your-namecheap-username-here",
        "NAMECHEAP_CLIENT_IP": "your-namecheap-client-ip-here",
        "NAMECHEAP_ENVIRONMENT": "your-namecheap-environment-here"
      },
      "args": [
        "-y",
        "namecheap-api-mcp"
      ],
      "command": "npx"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

namecheap-api-mcp

MCP server for the Namecheap API — manage domains, DNS, contacts, registrar locks, and view SSL certificates and pricing, straight from your AI assistant.

Built for Claude Code and any MCP-compatible AI tool.

Part of The SEO Engine toolkit by Lantern Row — AI-powered SEO and social media tooling for agencies and businesses.

Safety model

This server ships read + safe-write tools only. It can read your account and change DNS / nameserver / forwarding / lock configuration (all reversible), but it deliberately excludes anything that spends money or is irreversible: no domain registration, renewal, reactivation, transfers, SSL purchase/activation, add-funds, or account/address mutation. You can fork and add those if you need them.

Quick start

1. Enable Namecheap API access

Go to Profile → Tools → Namecheap API Access and toggle it ON. (Production access requires account eligibility: 20+ domains, OR a $50+ balance, OR $50+ lifetime spend.)
Copy your API key.
Whitelist the public IPv4 of the machine that will run this server (the API rejects any non-whitelisted IP with error 1011150).

2. Configure your MCP client

{
  "mcpServers": {
    "namecheap": {
      "command": "npx",
      "args": ["-y", "namecheap-api-mcp"],
      "env": {
        "NAMECHEAP_API_USER": "your_username",
        "NAMECHEAP_API_KEY": "your_api_key",
        "NAMECHEAP_CLIENT_IP": "your.whitelisted.ip.v4"
      }
    }
  }
}

Option: clone and build

git clone https://github.com/lanternrow/namecheap-api-mcp.git
cd namecheap-api-mcp
npm install
npm run build

Then point your client at node /path/to/namecheap-api-mcp/dist/index.js. For local credentials you can keep a gitignored .env (copy .env.example) and launch with Node's native flag: node --env-file=.env dist/index.js.

Environment variables

Variable	Required	Description
`NAMECHEAP_API_USER`	Yes	Your Namecheap account username (API user).
`NAMECHEAP_API_KEY`	Yes	API key from Profile → Tools → API Access. Secret.
`NAMECHEAP_CLIENT_IP`	Yes	The whitelisted public IPv4 of this machine.
`NAMECHEAP_USERNAME`	No	Defaults to `NAMECHEAP_API_USER`; differs only for reseller sub-users.
`NAMECHEAP_ENVIRONMENT`	No	`production` (default) or `sandbox`.

Tools

Read

Tool	Description
`check_connection`	Verify credentials + IP whitelist; returns the account balance summary.
`list_domains`	List domains with expiry, lock, auto-renew, and WhoisGuard status (paged/searchable).
`get_domain_info`	Detailed info for one domain.
`check_domains`	Check availability + premium pricing (up to 50 at once).
`get_domain_contacts`	Registrant / Tech / Admin / AuxBilling contacts.
`get_registrar_lock`	Registrar lock status.
`get_dns_hosts`	All DNS host records for a domain.
`get_nameservers`	Nameservers and whether Namecheap DNS is in use.
`get_email_forwarding`	Email forwarding rules.
`get_pricing`	Namecheap pricing for a product type (cache the results).
`list_ssl_certificates`	SSL certificates with type, host, status, expiry.

Safe writes (configuration only — no charges)

Tool	Description
`set_dns_hosts`	Replace all host records (destructive: omitted records are deleted — send the full set).
`set_default_dns`	Switch a domain to Namecheap's default nameservers.
`set_custom_nameservers`	Point a domain at custom nameservers.
`set_email_forwarding`	Set email forwarding rules.
`set_registrar_lock`	Lock / unlock a domain at the registrar.

Notes & gotchas

set_dns_hosts is destructive by API design. Namecheap's setHosts deletes every record not included in the call. Always read current records first (get_dns_hosts), merge your change, then send the complete set.
Errors return HTTP 200. The Namecheap API signals failure in the XML body (Status="ERROR"), not the HTTP status. This server parses that and throws a real error with the Namecheap error number + message.
IPv4 only for the whitelisted client IP.

Security

Credentials are read from environment variables only — never hard-coded, logged, or written to disk by this server.
The API key travels in the query string (Namecheap's design); this server never logs the request URL or key, and error messages surface only the Namecheap error number and text.

License

MIT © Lantern Row

Reviews

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Namecheap MCP Server

About

Security Report

Findings (13)Action required

Permissions Required

What You'll Need

How to Install

Documentation

namecheap-api-mcp

Safety model

Quick start

1. Enable Namecheap API access

2. Configure your MCP client

Option: clone and build

Environment variables

Tools

Read

Safe writes (configuration only — no charges)

Notes & gotchas

Security

License

Reviews

No reviews yet

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