Llms Txt Validator is answering right now. Last checked 3 min ago. It exposes 3 tools.
Validate a site's llms.txt against the spec: fetches every linked URL, scores it 0-100.
Today is the operative word: we check Llms Txt Validator every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 3 min ago.
claude mcp add llms-txt-validator --transport http https://llms-txt-validator.dev/mcp
https://llms-txt-validator.dev/mcp
[mcp_servers.llms-txt-validator]
url = "https://llms-txt-validator.dev/mcp"
{
"mcpServers": {
"llms-txt-validator": {
"url": "https://llms-txt-validator.dev/mcp"
}
}
}
{
"servers": {
"llms-txt-validator": {
"type": "http",
"url": "https://llms-txt-validator.dev/mcp"
}
}
}
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
validate_llms_txt
validate_llms_txt_content
generate_llms_txt
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://llms-txt-validator.dev/mcp | streamable-http | answering | 168 ms | 3 min ago |
Validate JSON-LD structured data against the Schema.org vocabulary. Free; never fetches URLs.
Validate JSON against a JSON Schema offline, with a clear list of every structural error
Checks whether a website has a usable llms.txt. Score 0–100. Free 3/day/IP, then ¥10.
Repair broken JSON from LLM output and validate it against a JSON Schema.
Search source collections your team vetted. Every passage cites its URL and fetch date.
Validate VAST, VMAP, and DAAST ad tags against IAB specs. 246 rules, pure Rust core.
Scores a website's online presence 0-100 and lists the top issues to fix. English/Arabic.
Scores a website's online presence 0-100 and lists the top issues to fix. English/Arabic.
Answers built from our own checks of this server.