Subdomain Finder MCP
Passive subdomain enumeration from certificate transparency (certspotter, crt.sh) with DNS checks.
MCP server · by theluckystrike
About
Subdomain Finder MCP is an MCP server published by theluckystrike. Marketplaces we read that list it: 1 (Official MCP Registry). We first saw it on 2026-11-02 and have recorded no change since. As of our marketplace pass on 2026-11-08.
What it asks for
- Runs remotely
None of the marketplaces we read publishes its tools or the settings it asks for.
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Works with
- Claude Code
- Codex
- Cursor
- VS Code
- Copilot CLI
A one-click link opens the client, which asks you to confirm before it adds the server.
From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.
Connect
Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.
As a remote MCP server
Built from what Official MCP Registry declares.
claude mcp add --transport http subdomain-finder-mcp https://subdomain-finder-mcp.lipmichal.workers.dev/mcp[mcp_servers.subdomain-finder-mcp]
url = "https://subdomain-finder-mcp.lipmichal.workers.dev/mcp"{
"mcpServers": {
"subdomain-finder-mcp": {
"url": "https://subdomain-finder-mcp.lipmichal.workers.dev/mcp"
}
}
}Where it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Official MCP Registry (Open the registry record) | Listed | 1.0.0 | Forks (GitHub): 0 Stars (GitHub): 0 |
Not marked |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
What changed
- Became a product we track
- Official MCP Registry: appeared
Similar plugins
Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.
-
Find known subdomains of a domain. Passive data; may include historic entries. List or count.
-
crt.sh SSL Certificate Transparency & Subdomain Recon
Query crt.sh SSL/TLS Certificate Transparency logs for subdomain discovery and certificate audits.
-
Find dangling DNS records vulnerable to subdomain takeover across AWS, Azure, GCP, Cloudflare and Oracle Cloud.
-
domain-intel io.github.lazymac2x/domain-intel
Cloudflare Workers MCP server: domain-intel
-
dns-intelligence io.github.4hmetuyar/dns-intelligence
DNS record enumeration, misconfiguration and dangling-subdomain detection
-
OSINT email and subdomain discovery for AI agents, powered by theHarvester. Multi-arch Docker.
-
Claim a working subdomain in one call — A, CNAME and TXT records. No domain to buy, no account.
-
Certificate Transparency search: subdomains, certificate history and hostname keyword search.
-
Find lookalike domains of a brand's website and see which resolve and what they show.
-
Discover mobile app attack surfaces via BeVigil OSINT — hosts, subdomains, URLs, and more.
Similar plugins by marketplace
The same question asked of one marketplace at a time: is there an analog of this plugin there?
Has a listing on Claude Code: claude-plugins-community (5)
-
Client-side web security scanner — detects secrets, vulnerable JS libraries, misconfigurations, XSS sinks, CORS issues, and more
-
Reco SaaS & AI security — query app risks, shadow IT, AI agents, user posture, and access events directly from Claude Code
-
AI-native security intelligence. Query your security posture, investigate threats, triage alerts, and run SQL against all your connected data sources — directly from Claude Code.
-
Skills for working with NightVision, a DAST and API Discovery platform that finds exploitable vulnerabilities in web applications and REST APIs
-
Connect Google Search Console to Claude Code. Query rankings, inspect URLs, audit indexing, and find content opportunities through natural language. Built for SEO workflows.
Has a listing on Claude Code: claude-plugins-official (5)
-
Skills for working with NightVision, a DAST and API Discovery platform that finds exploitable vulnerabilities in web applications and REST APIs
-
Set up endorctl and use Endor Labs to scan, prioritize, and fix security risks across your software supply chain
-
Configure, run, and interpret HawkScan DAST results inside Claude Code. Generates stackhawk.yml configs, runs scans via CLI or Docker, and transforms security findings into…
-
Skills for the Cloudflare developer platform: Workers, Durable Objects, Agents SDK, MCP servers, Wrangler CLI, and web performance.
-
Query the StackHawk platform API for security posture reporting, findings analysis, and app management. Guides agents through authentication, data retrieval, and result…
Has a listing on Claude: knowledge-work-plugins (5)
-
Configure, run, and interpret HawkScan DAST results inside Claude Code. Generates stackhawk.yml configs, runs scans via CLI or Docker, and transforms security findings into…
-
Query the StackHawk platform API for security posture reporting, findings analysis, and app management. Guides agents through authentication, data retrieval, and result…
-
Web scraping, Google search, structured data extraction, and MCP server integration powered by Bright Data. Includes 7 skills: scrape any webpage as markdown (with bot…
-
Exa AI web search, deep research, and content extraction. Provides MCP tools and research skills for comprehensive web search, people discovery, company research, academic papers…
-
Deploy, manage and monitor your Hostinger services directly from Claude Code. The plugin connects Claude to Hostinger's remote MCP server, so you can ship sites and apps, manage…
Has a listing on Codex: openai-curated (openai/plugins) (5)
-
Cloudflare platform plugin with curated skills for Workers, Wrangler, and Agents SDK plus the official Cloudflare API MCP server.
-
Codex Security workflows for security scans, analysis, and investigation.
-
CrowdStrike Falcon Foundry development skills for building cybersecurity applications on the Falcon platform. Includes UI development, collections, functions, workflows, API…
-
CrowdStrike Falcon Fusion skills for authoring, deploying, and executing Fusion workflows. Includes live action discovery, YAML authoring with schema validation, workflow import…
-
Available for US1 customers only. Analyze, investigate, and act on your Datadog telemetry directly from ChatGPT using natural language. Ask questions about your production…
Has a listing on Community GitHub marketplaces (5)
-
Find dangling DNS records vulnerable to subdomain takeover across AWS, Azure, GCP, Cloudflare and Oracle Cloud.
-
OSINT recon tools for Vibe Squad specialists (dns, whois, crt.sh, wayback, github leaked-secrets). Owner roles: scout, security-analyst, exploit-developer.
-
Manage the domains you own at Porkbun: DNS, nameservers, forwarding, DNSSEC, restore points and Secure Static Hosting, including publishing a site Claude builds for you.
-
Domain and Certificate Tracker MCP
Every client's domains and certificates in one inventory: what expires, unlocks or changes.
-
Generates creative domain name ideas for your project and checks availability across multiple TLDs (.com, .io, .dev, .ai, etc.).
Has a listing on Copilot CLI: github/awesome-copilot (5)
-
CrowdStrike Falcon Foundry development skills for building cybersecurity applications on the Falcon platform. Includes UI development, collections, functions, workflows, API…
-
Use Datadog directly in Copilot / VS Code through a preconfigured Datadog MCP server. Query logs, metrics, traces, dashboards, and more through natural conversation.
-
Vercel deployment platform integration. Manage deployments, check build status, access logs, configure domains, and control your frontend infrastructure directly from Claude Code.
-
azure-resources-query
Browse Azure resources through read-only Resource Graph queries with explicit subscription selection in a Copilot canvas.
-
CrowdStrike Falcon Fusion skills for authoring, deploying, and executing Fusion workflows. Includes live action discovery, YAML authoring with schema validation, workflow import…
Has a listing on Copilot CLI: github/copilot-plugins (5)
-
Advanced Security plugin for GitHub Copilot.
-
workiq
Query Microsoft 365 data with natural language — emails, meetings, documents, Teams messages, and more.
-
Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.
-
Bring Azure DevOps work-item, repository, and pull-request workflows into GitHub Copilot.
-
Build Power Apps Canvas Apps using the Canvas Authoring MCP server.
Has a listing on Cursor: cursor/plugins (5)
-
Brainstorm domain names and check availability.
-
Browse and automate the web with TinyFish: run multi-step web automations, search the web, extract clean page content, and drive remote stealth browser sessions.
-
Analyze website traffic, audiences, and competitors.
-
Research keywords, backlinks, rankings, and site health.
-
Research keywords, backlinks, traffic, and competitors.
Has a listing on Docker MCP Catalog (5)
-
MCP server for Shodan — host/network recon, CVE and exploit lookup, InternetDB, and persistent alerts (34 tools).
-
Access the latest documentation on Cloudflare products such as Workers, Pages, R2, D1, KV.
-
The Official Model Context Protocol (MCP) server for Kagi Search & other tools.
-
Connects with the Beagle Security backend using a user token to manage applications, run automated security tests, track vulnerabilities across environments, and gain intelligence…
-
Community-maintained server for DuckDuckGo search. Not published by or affiliated with DuckDuckGo.
Has a listing on Official MCP Registry (5)
-
Find known subdomains of a domain. Passive data; may include historic entries. List or count.
-
crt.sh SSL Certificate Transparency & Subdomain Recon
Query crt.sh SSL/TLS Certificate Transparency logs for subdomain discovery and certificate audits.
-
domain-intel io.github.lazymac2x/domain-intel
Cloudflare Workers MCP server: domain-intel
-
dns-intelligence io.github.4hmetuyar/dns-intelligence
DNS record enumeration, misconfiguration and dangling-subdomain detection
-
OSINT email and subdomain discovery for AI agents, powered by theHarvester. Multi-arch Docker.
Has a listing on PyPI (MCP servers) (5)
-
Register a SaaS app's customer hostnames, show their DNS records and checks, recheck or delete them.
-
ahrefs com.mcparmory/ahrefs
Analyze domain authority, backlinks, traffic, and keyword rankings for SEO intelligence
-
Screaming Frog SEO Spider MCP Server (headless)
Headless Screaming Frog SEO Spider via its CLI: run crawls, export and filter data, no GUI needed.
-
globalping com.mcparmory/globalping
Run network tests (ping, traceroute, DNS) from probes worldwide
-
MCP server with 173 tools: a real Chrome browser over CDP with nodriver, HTTP with Chrome's TLS fingerprint, Cloudflare Turnstile handling, session reuse, and web research without…
Has a listing on npm registry (MCP servers) (5)
-
Domain research for AI agents: checks hundreds of names in one call, with prices and where to buy.
-
dnstwist io.github.w0h1v/dnstwist
MCP server for dnstwist: detect typosquatting, phishing and brand impersonation domains.
-
mcp com.dechonet/mcp
30 security tools for AI agents: phishing links, exposure maps, DNS, SSL, PQC, history, pivots.
-
shodan io.github.BurtTheCoder/shodan
MCP server for Shodan API — device search, IP lookup, DNS, and CVE/CPE queries.
-
Audit a domain's email and web security: SPF, DKIM, DMARC, MTA-STS, DNSSEC, TLS, WHOIS. No API keys.
Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.
Want this mark on your plugin in our catalog?
Prove you maintain it with a file in its repository, a file on your domain or a DNS record, and you can show this mark on the card, with live banners for your site and README. How verification works
You also get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.