MCP server

CheckWebsiteNow Official

com.checkwebsitenow/checker

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Check if a website is down, explain browser errors and score agent readability (MCP, WebMCP).

At a glance

Type

MCP server

Publisher

checkwebsitenow.com (verified by the MCP Registry)

Status

Working at last check

Tools

9

Token cost

About 1,552 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http checker https://checkwebsitenow.com/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.checker]
url = "https://checkwebsitenow.com/mcp"

Gemini CLI

{"mcpServers":{"checker":{"httpUrl":"https://checkwebsitenow.com/mcp"}}}

Cursor

{"mcpServers":{"checker":{"url":"https://checkwebsitenow.com/mcp"}}}

VS Code

{"servers":{"checker":{"type":"http","url":"https://checkwebsitenow.com/mcp"}}}

Antigravity

agy mcp add checker https://checkwebsitenow.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"checker","server_url":"https://checkwebsitenow.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"checker","server_url":"https://checkwebsitenow.com/mcp"}

Tools

• check_agent_readability ~195 tokens
  CheckWebsiteNow Agent Readability Score 0-100 (our own transparent score, not official) from bounded static evidence: homepage HTML, robots.txt, llms.txt, API/MCP discovery files, sitemap and Markdown negotiation. Every deduction names its fix. MCP discovery is advertised, not tested; WebMCP is decl
• check_website ~284 tokens
  Check one public website now: HTTPS homepage response headers and safe redirects from one measurement point, plus a plain-language diagnosis with free fix steps. Not a global outage verdict. The response starts with agent_guidance: step-by-step guidance in plain English (verdict, most likely cause,
• explain_error ~148 tokens
  Look up a browser error, HTTP status code or pasted error text (e.g. "ERR_CONNECTION_REFUSED", "503"). Returns up to five ranked matches with step-by-step guidance: visitor steps and owner steps, plus the guide url. Lookups carry no ads, as on our website; optional labelled offers come only with che
• get_access_solutions ~493 tokens
  Ways to reach a website that may be blocked in a country or region (geoblocking). Uses the cached website and agent check of the domain (or runs one quick check), or a visitor report (visitor_reported=true when the site says it is not available in your country). Free solutions come first. VPN provid
• get_agent_readability_method ~91 tokens
  The versioned method of the CheckWebsiteNow Agent Readability Score: groups, 14 weighted checks, calculation, caps, bands and limits, including how MCP and WebMCP are judged. Not an official standard.
• get_error ~82 tokens
  Full solution entry: meaning, likely causes, visitor and owner steps, what to avoid and sources.
• get_service_info ~65 tokens
  Public service metadata: measurement method, limits, schema versions and knowledge-base counts. Never visitor analytics.
• list_errors ~77 tokens
  List knowledge-base entries, optionally filtered by category or kind.
• list_status_sites ~117 tokens
  Popular services with a status page on CheckWebsiteNow and, only where verified, their official status link. Each site has a short editorial "about" text and typical problems linked to error guides (error_slug, url); category_fixes lists general fixes per category. Editorial, not live user reports.

Browse

• Website monitoring
• Converting to Markdown

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