# TeTsuki Gateway (remote · tetsuki-gateway.vercel.app)

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

- Trust score: 65/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-29

## Components

- remote · `tetsuki-gateway.vercel.app`: 65/100 (this document), [markdown](https://verifymcp.io/servers/kairosusunsei-tetsuki-gateway/tetsuki-gateway.md), [page](https://verifymcp.io/servers/kairosusunsei-tetsuki-gateway/tetsuki-gateway)

## Channel facts

- Endpoint: `https://tetsuki-gateway.vercel.app/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.1.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-09-29.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 1 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 60/100
  - AI-judged instruction clarity (fair).
  - Tool/resource definitions use about 109 tokens (~109/item across 1 items; 1 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 1 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 2 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 40/100
  - Spec-recency check failed: implements MCP spec 2025-03-26; the latest is 2026-07-28.

## Install

### How do I install the TeTsuki Gateway MCP server?

TeTsuki Gateway is a hosted endpoint at https://tetsuki-gateway.vercel.app/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http kairosusunsei-tetsuki-gateway 'https://tetsuki-gateway.vercel.app/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "kairosusunsei-tetsuki-gateway": {
      "url": "https://tetsuki-gateway.vercel.app/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "kairosusunsei-tetsuki-gateway": {
      "type": "http",
      "url": "https://tetsuki-gateway.vercel.app/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.kairosusunsei-tetsuki-gateway]
url = "https://tetsuki-gateway.vercel.app/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "kairosusunsei-tetsuki-gateway": {
      "type": "remote",
      "url": "https://tetsuki-gateway.vercel.app/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add kairosusunsei-tetsuki-gateway --url 'https://tetsuki-gateway.vercel.app/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  kairosusunsei-tetsuki-gateway:
    url: "https://tetsuki-gateway.vercel.app/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "kairosusunsei-tetsuki-gateway": {
      "Transport": "http",
      "Url": "https://tetsuki-gateway.vercel.app/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add kairosusunsei-tetsuki-gateway -t streamable-http -u 'https://tetsuki-gateway.vercel.app/mcp'
```

### Other

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

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-09-28 (score 65, +1)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-09-26 (score 64, +1)

No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-25 (score 63, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-09-23 (score 63, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-22 (score 62, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-09-21 (score 62)

First indexed and scored.

## MCP tools (1)

### `check_llms_txt` (~70 tokens)

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.

Input parameters:

- `domain` (string, required): Website host, e.g. example.com

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/kairosusunsei-tetsuki-gateway/tetsuki-gateway#diagnostics

## Score history

- 2026-09-29: 65
- 2026-09-28: 65
- 2026-09-27: 64
- 2026-09-26: 64
- 2026-09-25: 63
- 2026-09-24: 63
- 2026-09-23: 63
- 2026-09-22: 62
- 2026-09-21: 62

## Common questions

### What is the TeTsuki Gateway MCP server?

TeTsuki Gateway is an MCP server listed in the public MCP registry as io.github.kairosusunsei/tetsuki-gateway. Checks whether a website has a usable llms.txt. Score 0–100. Free 3/day/IP, then ¥10. This page covers its hosted endpoint (https://tetsuki-gateway.vercel.app/mcp).

### Is the TeTsuki Gateway MCP server safe to use?

TeTsuki Gateway scores 65 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the TeTsuki Gateway MCP server expose?

TeTsuki Gateway exposes 1 tool: check_llms_txt. Their descriptions and schemas cost roughly 70 tokens of context every time the server is loaded.

### Does the TeTsuki Gateway MCP server require authentication?

No. We connected to TeTsuki Gateway without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the TeTsuki Gateway MCP server still maintained?

TeTsuki Gateway is still listed as active in the MCP registry. We last reached this channel on 29 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://tetsuki-gateway.vercel.app/mcp
- Repository: https://github.com/kairosusunsei/tetsuki-gateway
- Website: https://tetsuki-gateway.vercel.app/
- Changelog RSS feed: https://verifymcp.io/servers/kairosusunsei-tetsuki-gateway/tetsuki-gateway.xml
- Changelog JSON feed: https://verifymcp.io/servers/kairosusunsei-tetsuki-gateway/tetsuki-gateway.json
- HTML version of this page: https://verifymcp.io/servers/kairosusunsei-tetsuki-gateway/tetsuki-gateway