MCP server

Llms Txt Validator Official

dev.llms-txt-validator/llms-txt-validator

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

Validate a site's llms.txt against the spec: fetches every linked URL, scores it 0-100.

Working at last checkVerified publisher: llms-txt-validator.devAbout 284 tokens per request once connected3 tools

Website

https://llms-txt-validator.dev/mcp

At a glance

Type: MCP server
Publisher: llms-txt-validator.dev (verified by the MCP Registry)
Status: Working at last check
Tools: 3
Token cost: About 284 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 Cursor Add to VS Code VS 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 llms-txt-validator https://llms-txt-validator.dev/mcp

Claude Desktop

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

Codex (config.toml)

[mcp_servers.llms-txt-validator]
url = "https://llms-txt-validator.dev/mcp"

Gemini CLI

{"mcpServers":{"llms-txt-validator":{"httpUrl":"https://llms-txt-validator.dev/mcp"}}}

Cursor

{"mcpServers":{"llms-txt-validator":{"url":"https://llms-txt-validator.dev/mcp"}}}

VS Code

{"servers":{"llms-txt-validator":{"type":"http","url":"https://llms-txt-validator.dev/mcp"}}}

Antigravity

agy mcp add llms-txt-validator https://llms-txt-validator.dev/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":"llms-txt-validator","server_url":"https://llms-txt-validator.dev/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"llms-txt-validator","server_url":"https://llms-txt-validator.dev/mcp"}

Tools

generate_llms_txt ~76 tokens
Scaffold a starter llms.txt for a domain from its homepage and sitemap.
validate_llms_txt ~114 tokens
Validate a website's llms.txt: returns a 0-100 quality score, findings, and AI-discoverability signals. Pass a domain or URL.
validate_llms_txt_content ~94 tokens
Validate raw llms.txt text you already hold, without fetching it. Returns the same score and findings.

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