How do I install CitedBy?

Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.

Does CitedBy need an API key?

No required environment variable is listed on this record.

When was CitedBy last checked?

Last checked 2026-11-08. Check a page, AI-crawler access, llms.txt and backlinks of a site. Free, read-only.

CitedBy MCP server

Power your agent

Add this server

The publisher's own URL. Not a PlugMCP endpoint.

Add to Cursor Add in Claude Add to VS Code Run on PlugMCP

Host a copy with our keys and logs.

Server URL

https://citedby.eu/mcp

The Claude button above opens Claude with the name and URL filled in. You still confirm it there.

shClaude Code

1claude mcp add --transport http eu.citedby-citedby https://citedby.eu/mcp

Run in a terminal.

jsonClaude Desktop

1{2  "mcpServers": {3    "eu.citedby-citedby": {4      "command": "npx",5      "args": [6        "-y",7        "mcp-remote",8        "https://citedby.eu/mcp"9      ]10    }11  }12}

claude_desktop_config.json

Remote · HTTPPublisher installStep-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

Server facts

Remote

Transport: http
Version: 1.0.0
Last checked

Tools

No tool list yet. Remote servers get one after the first health check.

FAQ

Questions

CitedBy MCP server

Ask your AI tool to check whether a website can be found and cited by AI assistants and search engines. Free, no account, read-only.

Server address: https://citedby.eu/mcp (MCP Streamable HTTP, no sign-in). Page with the same instructions: https://citedby.eu/mcp-server

Tools

Tool	What you get
`check_page`	One page, fetched as CitedBot (robots.txt respected): what is wrong for AI answers and search, each finding with why it matters and the exact fix. Deterministic checks only.
`check_ai_crawler_access`	For GPTBot, OAI-SearchBot, ChatGPT-User, PerplexityBot, ClaudeBot, Google-Extended, Bingbot and Googlebot: allowed by robots.txt, and answered by the server, or not.
`check_llms_txt`	Whether `/llms.txt` exists, whether its links work, whether `/llms-full.txt` exists.
`backlinks`	How many domains link to a domain, and the strongest ones, from the Common Crawl web graph. Says when a domain is not in the data.

When a site refuses the crawler or does not answer, the tool says so. It does not score what it could not read.

Install

Claude Code

claude mcp add --transport http citedby https://citedby.eu/mcp

or install the plugin, which also adds a skill that picks the right tool for the question:

/plugin marketplace add resaleiq/citedby-mcp
/plugin install citedby@citedby

Claude on the web and desktop: Settings, Connectors, Add custom connector, paste https://citedby.eu/mcp.

Cursor: add CitedBy to Cursor, or add to ~/.cursor/mcp.json:

{ "mcpServers": { "citedby": { "url": "https://citedby.eu/mcp" } } }

Codex

codex mcp add citedby --url https://citedby.eu/mcp

Any other MCP client: add a remote server with the address above.

Ask it like this

"Check https://example.com/pricing with CitedBy and tell me what to fix first."
"Can GPTBot and PerplexityBot read example.com?"
"Does example.com have a working llms.txt?"
"Which domains link to example.com?"

Limits

40 checks an hour from one address; a result is reused for up to 6 hours (1 hour for a page check). check_page is one page. A whole-site audit, with every page up to your plan's limit and the exact fix for each, is at https://citedby.eu/plans.

Also from CitedBy: citedby-check, the same AI-crawler check as a command-line tool and GitHub Action.

Questions: [email protected]. MIT licence.

CitedBy

Add this server

Host a copy with our keys and logs.

Server facts

Tools

Questions

How do I install CitedBy?

Does CitedBy need an API key?

What transport does CitedBy use?

When was CitedBy last checked?

Documentation

CitedBy MCP server

Tools

Install

Ask it like this

Limits