Rat Radar

MCP server · hosted · v1.4.0 · tech.ratlabs/rat-radar

Online · tested 1h agoNEW · 2h agoSeen in the registry 1h ago

Ask before you scrape: is a site open, may I fetch this URL, and how do I extract a page. No key.

What it does

Rat Radar is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.

From the publisher's description, Electra Index matched it to one capability: web scraping. That makes it a candidate for tasks such as extract website data or collect data behind logins.

Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence). None of this is a test of the tool.

At a glance

Hosted (remote)YES

Local installNO

Live checkOnline · 8 tools

Version1.4.0

PriceNot in the registry

First seen28 Oct 2026

Last checked1h ago

How to connect

As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 1h ago (live check)

Hosted endpoint

https://rat-radar.github-a18.workers.dev/mcp streamable-http

In Claude Code: claude mcp add --transport http rat-radar https://rat-radar.github-a18.workers.dev/mcp

MCP settings (Claude Desktop, Cursor and other MCP clients)

{
  "mcpServers": {
    "rat-radar": {
      "url": "https://rat-radar.github-a18.workers.dev/mcp"
    }
  }
}

Live check

Electra Index connected to the hosted endpoint 1h ago

ONLINE Rat Radar answered an MCP connection on 28 Oct 2026 and introduced itself as rat-radar 1.4.0 (MCP protocol 2025-06-18).

8 tools offered to AI assistants

check_site · Can I scrape this site, and how? Returns a verdict (open, guarded, hostile, blocked), a hostility score, a recommended approach with steps and risks, bot protections, robots.txt and AI-crawler policy, machine-readable surfaces (sitemap, llm
get_playbook · What should I build with this site, and how? Give a domain and, optionally, a goal in plain words (for example "price alerts", "sales leads", "new jobs", "change log", "knowledge base"). Returns the best-matching workflow for that site: wha
list_sites · List the sites in the dataset, optionally by category or verdict. Use it to find easy targets or to see what is covered.
xray_page · How do I extract the data from THIS page? Fetches one public page and returns a ranked extraction plan: embedded JSON, JSON-LD, repeated records with CSS selectors and field names, tables, feeds, hidden API calls. Each source has a reliabil
xray_diagram · Draw a page's anatomy as an Excalidraw diagram: its regions, the ranked ways to get its data, proof rows, the best route and what the page is made of. Returns a download link for the .excalidraw file (give it to the user; it opens at excali
search_sites · Find sites in the dataset by a word: a name, host, category (jobs, shop, news, gov), country or verdict. Use it to discover what is covered before calling check_site.
can_fetch · Does robots.txt allow fetching this exact URL? Fetches the live robots.txt and applies the longest-match rule for a user agent (default: * plus GPTBot, ClaudeBot, Google-Extended, CCBot, PerplexityBot). Returns allowed or not, the rule that
summary · Headline numbers across the dataset: verdict mix, how many sites block AI crawlers (and which), protection vendors, by category and country.

What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method

Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.

Tasks it helps with

Share of each task's required capabilities it covers

Extract website data Web Scraping	50%
Collect data behind logins Web Scraping	50%
Monitor prices Web Scraping	50%
Audit website SEO Web Scraping	33%

Similar tools

Listed for the same task: extract website data

HydrafetchREMOTELOCAL
Clean web data for agents: any URL to Markdown or JSON, plus search, crawls and company brand data
apify-mcp-serverREMOTELOCAL
Extract data from any website with thousands of scrapers, crawlers, and automations on Apify Store ⚡
mcpREMOTELOCAL
Scrape any website, extract structured data, and collect web content at scale with AI agents
thunderbit-mcp-serverREMOTELOCAL
AI-powered web scraping MCP. Distill pages to Markdown or extract structured data via JSON Schema
kitbag-mcpREMOTELOCAL
Zero-config MCP server bundling 50+ utility tools: converters, OCR, scraping, and formatters
SupadataREMOTELOCAL
Video transcripts, metadata and structured data from YouTube, TikTok, Instagram, X; web scraping

Ready-made AI agents

An MCP server is a connector you add to your own assistant. These are finished products that do the same job for you:

Apify82
$19/mo · free plan · Prices & score →
Browser Use82
Free plan · Prices & score →
Firecrawl82
$16/mo · free plan · Prices & score →
Bright Data79
Free plan · Prices & score →

All AI agents to extract website data, ranked →

Facts & evidence

Each fact shows where it was seen and when.

Fact	Value	Evidence	Source	Last confirmed
Hosted endpoint	https://rat-radar.github-a18.workers.dev/mcp	DECLARED	SRC-001 Official MCP Registry	1h ago
Local install (package)	no	DECLARED	SRC-001 Official MCP Registry	1h ago
Remote access (hosted)	yes	DECLARED	SRC-001 Official MCP Registry	1h ago
Website	https://ratlabs.tech/radar/	DECLARED	SRC-001 Official MCP Registry	1h ago
Registry status	active	DECLARED	SRC-001 Official MCP Registry	1h ago
Version	1.4.0	DECLARED	SRC-001 Official MCP Registry	1h ago
MCP server	yes	DECLARED	SRC-001 Official MCP Registry	1h ago

Change history

NEW28 Oct 2026
first seen in the index

Is this page accurate?

Flag it and our robot re-checks the official source. Reports never change a score.

Is Rat Radar still online?

Free alerts · no account

Do you run Rat Radar? Know when it stops answering

For publishers · optional

Its hosted endpoint can be monitored. Monitoring Pro connects every 30 minutes like an AI assistant, emails you within the hour when it stops answering, keeps a 90-day availability history and adds your answer rate to your badge.

Monitor Rat RadarLaunch offer $39.99 once, for life instead of $9.99/month · All plans

Monitoring never changes a score or a rank.

Questions about Rat Radar

How do I connect Rat Radar?

Use the hosted endpoint https://rat-radar.github-a18.workers.dev/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.

What tools does Rat Radar offer?

When Electra Index connected on 28 Oct 2026, it listed 8 tools: check_site, get_playbook, list_sites, xray_page, xray_diagram, search_sites, can_fetch, summary. The full list is in "Live check" above.

Is Rat Radar online?

Yes. Its hosted endpoint answered an MCP connection from Electra Index 1h ago.

What can I use Rat Radar for?

Based on its description, it is most relevant to: extract website data, collect data behind logins, monitor prices, audit website SEO.