llms-txt-validator

dev.llms-txt-validator/llms-txt-validatorVersion 1.0.0

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

Status

Responds248 msNov 14, 2026, 14:26 UTCAnswered our handshake without sign-in.

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Data from the official MCP Registry, checked by run.zero. How we check

Streamable HTTP

https://llms-txt-validator.dev/mcpResponds248 msNov 14, 2026, 14:26 UTC

No sign-in

claude mcp add --transport http llms-txt-validator https://llms-txt-validator.dev/mcp

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Settings > Connectors > Add custom connector
Name: llms-txt-validator
Remote MCP server URL: https://llms-txt-validator.dev/mcp

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

code --add-mcp '{"name":"llms-txt-validator","type":"http","url":"https://llms-txt-validator.dev/mcp"}'

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3 tools

Tools of llms-txt-validator
	Description		Read-only	Idempotent	Open world
`generate_llms_txt`Scaffold a starter llms.txt for a domain from its homepage and sitemap.	Scaffold a starter llms.txt for a domain from its homepage and sitemap.	Not declared	Not declared	Not declared	Not declared
`validate_llms_txt`Validate a website's llms.txt: returns a 0-100 quality score, findings, and AI-discoverability signals. Pass a domain or URL.	Validate a website's llms.txt: returns a 0-100 quality score, findings, and AI-discoverability signals. Pass a domain or URL.	Not declared	Not declared	Not declared	Not declared
`validate_llms_txt_content`Validate raw llms.txt text you already hold, without fetching it. Returns the same score and findings.	Validate raw llms.txt text you already hold, without fetching it. Returns the same score and findings.	Not declared	Not declared	Not declared	Not declared

Registry status: Active
Published: Oct 8, 2026
Updated: Oct 8, 2026
Website: https://llms-txt-validator.dev/⁠ (opens in a new tab)
Repository: Not given
Categories (suggested): AI modelsSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared