TeTsuki Gateway

Checks whether a website has a usable llms.txt. Score 0–100. Free 3 checks per day per IP, then ¥10.

Hosted MCP (HTTP): https://tetsuki-gateway.vercel.app/mcp

This is a live fetch of https://{domain}/llms.txt on each call. It is not a world-mandatory gate, and it does not include monitoring history yet.

Product

Homepage (EN): https://tetsuki-gateway.vercel.app/
Homepage (JA): https://tetsuki-gateway.vercel.app/ja/
Pack on sale: 10 checks = ¥100 (Stripe Checkout on the homepage)

Install (Cursor / Claude)

Remote MCP URL: https://tetsuki-gateway.vercel.app/mcp

config.json

{
  "mcpServers": {
    "tetsuki": {
      "url": "https://tetsuki-gateway.vercel.app/mcp",
      "headers": {
        "X-API-Key": "tsk_your_key_here"
      }
    }
  }
}

Free quota works without a key (3/day/IP). Paid checks need X-API-Key from the homepage purchase.

Tools

Name	What it does
`check_llms_txt`	Fetches `/llms.txt` for a domain, reports exists/missing, basic shape, and a score from 0 to 100 (0 if missing).

Input: domain (example: example.com).

Response includes source_url, fetched_at, content_hash, score, and whether the file exists.

HTTP API (same tool)

POST https://tetsuki-gateway.vercel.app/api/mcp

config.json

{ "tool": "check_llms_txt", "domain": "example.com" }

Pricing

Free: 3 checks / day / IP
Paid: ¥10 per check (prepaid credits)
Current pack: 10 credits = ¥100
No monthly plan in this MVP

License

MIT