Check if a website is down, explain browser errors and score agent readability (MCP, WebMCP).
Connect Remote server
claude mcp add --transport http checker https://checkwebsitenow.com/mcp
{
"mcpServers": {
"checker": {
"url": "https://checkwebsitenow.com/mcp"
}
}
}
{
"servers": {
"checker": {
"type": "http",
"url": "https://checkwebsitenow.com/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://checkwebsitenow.com/mcp
Tools 9 found in our last check
check_websiteCheck 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…
check_agent_readabilityCheckWebsiteNow 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 t…
get_agent_readability_methodThe 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_access_solutionsWays 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 c…
explain_errorLook 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 offe…
list_errorsList knowledge-base entries, optionally filtered by category or kind.
get_errorFull solution entry: meaning, likely causes, visitor and owner steps, what to avoid and sources.
list_status_sitesPopular 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, no…
get_service_infoPublic service metadata: measurement method, limits, schema versions and knowledge-base counts. Never visitor analytics.
Details
| Endpoint | https://checkwebsitenow.com/mcp (Streamable HTTP) |
| First published | 13 Oct 2026 |
| Last updated | 13 Oct 2026 |
| Registry name | com.checkwebsitenow/checker |
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