TeTsuki Gateway

io.github.kairosusunseiPublished by GitHub account kairosusunseiv0.1.0Updated Oct 24, 2026

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

VerifiedStreamable HTTPWeb executableDeveloper Tools

Overview

AI-generated overview

Remote MCP server that lets an assistant check whether a website has a usable llms.txt and score it from 0 to 100.

What you can do
Check a domain's llms.txt: fetch the domain's llms.txt and report whether it exists, its basic shape, and a 0–100 score. Results include the source URL, fetch time, content hash, and whether the file exists. Each call is a live fetch with no monitoring history.
When to use it
Use it to quickly check whether a site's llms.txt exists, is well-formed, and how it scores, for example after publishing or revising one. It suits one-off checks rather than ongoing monitoring.
Requirements
Remote endpoint; nothing to install locally. The free quota is 3 checks per day per IP with no key; beyond that, prepaid credits bought on the homepage are supplied through the X-API-Key header. Network access to the service and the target domain is needed.
Before you install
Paid checks cost ¥10 each and require prepaid credits (currently 10 checks for ¥100), so real money is spent. X-API-Key is a secret and should not be exposed. The service fetches the llms.txt of the domain you name, so that domain is sent to a third party.

Installation

In SourceWeft

  1. Open TeTsuki Gateway in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.kairosusunsei%2Ftetsuki-gateway/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "tetsuki-gateway": {
      "type": "http",
      "url": "https://tetsuki-gateway.vercel.app/mcp"
    }
  }
}

README

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

Install (Cursor / Claude)

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

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

NameWhat it does
check_llms_txtFetches /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

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

Source: README.md at commit 56ff430

Tools

1

check_llms_txt

Fetch https://{domain}/llms.txt, report whether it exists, basic shape, and a 0–100 score. Free: 3/day/IP. Paid: X-API-Key, ¥10 per call.

Parametersdomainrequired

Version history

1
  1. v0.1.0LatestSep 21, 2026

Score

100% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts