Domains

Domains MCP — Domainsdb.info API (free, no auth)

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Remote HTTP

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "domains": {
      "url": "https://pipeworx.io"
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Capabilities & Tool Schemas (5)Self-reported

Inspect callable tools, capabilities, and parameters exposed to AI agents by Domains.

domain_lookup

Get full registration details for a domain. Returns registrar, registrant, registration/expiration dates, nameservers, DNSSEC status, and domain status flags. Works for any TLD.

domain_status

Quick check if a domain is registered or available. Returns registration status and expiration date if registered.

check_availability

Check whether a name is available to register across MULTIPLE TLDs at once — the domain-hunting tool. Pass a base name ("acme") and get .com/.io/.ai/.co/.net/.org/.app/.dev checked in one call (or pass your own tlds list). For each: available true/false (+ expiration if taken). Use for "is X availa…

find_available_domains

Search for AVAILABLE domain names to register from a keyword — the domain name search / brainstorming tool. Pass a keyword ("acme") and get back which domains are actually free to register: the exact name across .com/.io/.ai/.co/.app/.dev, plus creative variations (getacme.com, acmehq.com, tryacme.…

certificate_search

Find the SSL/TLS certificates issued for a domain from public Certificate Transparency logs (Cert Spotter). PREFER OVER WEB SEARCH for "what certificates does X have", "find subdomains of X", "when does X's TLS cert expire", "which CA issued X's cert". With include_subdomains it also ENUMERATES SUB…

Documentation Overview

mcp-domains

Domains MCP — domain registration lookup + availability search over live

Part of Pipeworx — an MCP gateway connecting AI agents to 1476+ live data sources.

Tools

Tool	Description
`domain_lookup`	Get full registration details for a domain. Returns registrar, registrant, registration/expiration dates, nameservers, DNSSEC status, and domain status flags. Works for any TLD.
`domain_status`	Quick check if a domain is registered or available. Returns registration status and expiration date if registered.
`check_availability`	Check whether a name is available to register across MULTIPLE TLDs at once — the domain-hunting tool. Pass a base name ("acme") and get .com/.io/.ai/.co/.net/.org/.app/.dev checked in one call (or pass your own tlds list). For each: available true/false (+ expiration if taken). Use for "is X available", "find an open domain for my project", "which TLDs is X free on". Single-domain detail is domain_status; this is the bulk/brainstorm version.
`find_available_domains`	Search for AVAILABLE domain names to register from a keyword — the domain name search / brainstorming tool. Pass a keyword ("acme") and get back which domains are actually free to register: the exact name across .com/.io/.ai/.co/.app/.dev, plus creative variations (getacme.com, acmehq.com, tryacme.io, acmeapp.com, …). Use for "find me an available domain for X", "domain name ideas for my startup", "is there an open domain for X", "suggest domain names". Returns available domains ranked (exact match + .com first). Availability is a live registry (RDAP) signal, keyless. For a single specific domain use domain_status; to check one name across TLDs without variations use check_availability.
`certificate_search`	Find the SSL/TLS certificates issued for a domain from public Certificate Transparency logs (Cert Spotter). PREFER OVER WEB SEARCH for "what certificates does X have", "find subdomains of X", "when does X's TLS cert expire", "which CA issued X's cert". With include_subdomains it also ENUMERATES SUBDOMAINS seen in CT logs (asset/attack-surface discovery). Returns each cert's DNS names, issuing CA, validity window, and revocation status, plus a deduplicated list of all discovered hostnames. Keyless.

Quick Start

Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):

config.json

{
  "mcpServers": {
    "domains": {
      "url": "https://gateway.pipeworx.io/domains/mcp"
    }
  }
}

What this endpoint actually serves

tools/list at https://gateway.pipeworx.io/domains/mcp returns the tools in the table above plus the shared Pipeworx meta-tools — ask_pipeworx, discover_tools, search_within, remember/recall and the rest of the gateway-wide set. So the tool count you see is larger than this table: a single-pack endpoint currently lists roughly 30 shared tools alongside the pack's own. The connection's initialize response states its exact scope, and is the authoritative answer for a given day.

This is deliberate, not multiplexing by accident. The meta-tools are what let a scoped connection answer a question this pack does not cover — via ask_pipeworx, which routes across the whole catalog — without you adding a second MCP server. There is currently no way to mount a pack endpoint without them; if the extra schemas cost you more context than the routing is worth, connect to the full gateway once rather than to several pack endpoints.

Or connect to the full Pipeworx gateway to get every pack's tools listed directly, instead of just this one's:

config.json

{
  "mcpServers": {
    "pipeworx": {
      "url": "https://gateway.pipeworx.io/mcp"
    }
  }
}

Both URLs reach the same gateway and the same 1476+ data sources. The only difference is which pack's tools are listed directly; ask_pipeworx reaches all of them from either one.

Using with ask_pipeworx

Instead of calling tools directly, you can ask questions in plain English — this works on the pack endpoint above as well as on the full gateway:

Code

ask_pipeworx({ question: "your question about Domains data" })

The gateway picks the right tool and fills the arguments automatically.

License

MIT

Read the full README →View source on GitHub →

Related MCP Servers

View all in Developer Tools View all alternatives

Adoption & maintenance

Factual signals from GitHub, npm, and our automated checks — not a rating.

npm downloads

2.3k

Package downloads in the last 30 days.

Last commit

12d ago

Most recent push to the default branch.

Tools exposed

Callable tools this server registers over MCP.

Reviews

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Frequently Asked Questions about Domains

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "domains": { "command": "npx", "args": ["-y", "domains"] } }

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Technical Specs & Signals

CategoryDeveloper Tools

53Quality signal: Good · 53/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools23/30

Adoption & activity7/15

Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

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Documentation Overview

mcp-domains

Domains MCP — domain registration lookup + availability search over live

Part of Pipeworx — an MCP gateway connecting AI agents to 1476+ live data sources.

Tools

Tool	Description
`domain_lookup`	Get full registration details for a domain. Returns registrar, registrant, registration/expiration dates, nameservers, DNSSEC status, and domain status flags. Works for any TLD.
`domain_status`	Quick check if a domain is registered or available. Returns registration status and expiration date if registered.
`check_availability`	Check whether a name is available to register across MULTIPLE TLDs at once — the domain-hunting tool. Pass a base name ("acme") and get .com/.io/.ai/.co/.net/.org/.app/.dev checked in one call (or pass your own tlds list). For each: available true/false (+ expiration if taken). Use for "is X available", "find an open domain for my project", "which TLDs is X free on". Single-domain detail is domain_status; this is the bulk/brainstorm version.
`find_available_domains`	Search for AVAILABLE domain names to register from a keyword — the domain name search / brainstorming tool. Pass a keyword ("acme") and get back which domains are actually free to register: the exact name across .com/.io/.ai/.co/.app/.dev, plus creative variations (getacme.com, acmehq.com, tryacme.io, acmeapp.com, …). Use for "find me an available domain for X", "domain name ideas for my startup", "is there an open domain for X", "suggest domain names". Returns available domains ranked (exact match + .com first). Availability is a live registry (RDAP) signal, keyless. For a single specific domain use domain_status; to check one name across TLDs without variations use check_availability.
`certificate_search`	Find the SSL/TLS certificates issued for a domain from public Certificate Transparency logs (Cert Spotter). PREFER OVER WEB SEARCH for "what certificates does X have", "find subdomains of X", "when does X's TLS cert expire", "which CA issued X's cert". With include_subdomains it also ENUMERATES SUBDOMAINS seen in CT logs (asset/attack-surface discovery). Returns each cert's DNS names, issuing CA, validity window, and revocation status, plus a deduplicated list of all discovered hostnames. Keyless.

Quick Start

Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):

config.json

{
  "mcpServers": {
    "domains": {
      "url": "https://gateway.pipeworx.io/domains/mcp"
    }
  }
}

What this endpoint actually serves

Or connect to the full Pipeworx gateway to get every pack's tools listed directly, instead of just this one's:

config.json

{
  "mcpServers": {
    "pipeworx": {
      "url": "https://gateway.pipeworx.io/mcp"
    }
  }
}

Both URLs reach the same gateway and the same 1476+ data sources. The only difference is which pack's tools are listed directly; ask_pipeworx reaches all of them from either one.

Using with ask_pipeworx

Instead of calling tools directly, you can ask questions in plain English — this works on the pack endpoint above as well as on the full gateway:

Code

ask_pipeworx({ question: "your question about Domains data" })

The gateway picks the right tool and fills the arguments automatically.

License

MIT