# cn.pianam.mcp/devtools-mcp (remote · mcp.pianam.cn)

Developer toolkit: UUID, timestamp, unit conversion, JSON tools, and QR code (SVG). Free.

- Trust score: 0/100 (low)
- Change this week: −61
- Registry status: active
- Liveness: dead
- Owner verified: no
- Last scored: 2026-09-25

> **Dead**: every channel of this server has been unreachable for long enough to be marked dead. Its trust score is pinned to 0 and does not recover automatically.

## Components

- remote · `mcp.pianam.cn`: 0/100 (this document), [markdown](https://verifymcp.io/servers/cn-pianam-mcp-devtools-mcp/devtools-mcp-mcp.md), [page](https://verifymcp.io/servers/cn-pianam-mcp-devtools-mcp/devtools-mcp-mcp)

## Channel facts

- Endpoint: `https://mcp.pianam.cn/devtools-mcp/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## 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 2026-09-25.

- **Endpoint Security**: 11/100
  - TLS not yet verified: we couldn't open a connection to check the certificate.
  - Authorisation not yet verified: we couldn't confirm whether this endpoint requires it.
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS not yet verified: we couldn't read the response headers to check for it.
  - DNSSEC not yet verified: we couldn't validate it against a resolver.
- **Transport & Reachability**: 0/100
  - Transport check failed: declared streamable-http, but we couldn't connect to verify it.
- **Schema Quality & AI Usability**: 0/100
  - Schema not yet verified: we couldn't read the endpoint's schema, or could read only part of its tool list.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **Tool Coverage**: 0/100
  - Tool coverage not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.
- **Tool Safety**: 0/100
  - Tool safety not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.
- **Capabilities**: 0/100
  - Capabilities not yet verified: we couldn't read the endpoint's capabilities.

**Unverified: 5 categories.** Categories scored 0 because we could not verify them: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.

## Install

### How do I install the cn.pianam.mcp/devtools-mcp server?

cn.pianam.mcp/devtools-mcp is a hosted endpoint at https://mcp.pianam.cn/devtools-mcp/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 cn-pianam-mcp-devtools-mcp 'https://mcp.pianam.cn/devtools-mcp/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "cn-pianam-mcp-devtools-mcp": {
      "url": "https://mcp.pianam.cn/devtools-mcp/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "cn-pianam-mcp-devtools-mcp": {
      "type": "http",
      "url": "https://mcp.pianam.cn/devtools-mcp/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.cn-pianam-mcp-devtools-mcp]
url = "https://mcp.pianam.cn/devtools-mcp/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "cn-pianam-mcp-devtools-mcp": {
      "type": "remote",
      "url": "https://mcp.pianam.cn/devtools-mcp/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add cn-pianam-mcp-devtools-mcp --url 'https://mcp.pianam.cn/devtools-mcp/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  cn-pianam-mcp-devtools-mcp:
    url: "https://mcp.pianam.cn/devtools-mcp/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "cn-pianam-mcp-devtools-mcp": {
      "Transport": "http",
      "Url": "https://mcp.pianam.cn/devtools-mcp/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add cn-pianam-mcp-devtools-mcp -t streamable-http -u 'https://mcp.pianam.cn/devtools-mcp/mcp'
```

### Other

```json
{
  "mcpServers": {
    "cn-pianam-mcp-devtools-mcp": {
      "type": "http",
      "url": "https://mcp.pianam.cn/devtools-mcp/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.

### 2026-09-25 (score 0, −12)

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

### 2026-09-24 (score 12, −12)

The score moved with no change recorded against any check. We would rather say so than guess.

### 2026-09-23 (score 24, −13)

The score moved with no change recorded against any check. We would rather say so than guess.

### 2026-09-20 (score 37, −12)

The score moved with no change recorded against any check. We would rather say so than guess.

### 2026-09-19 (score 49, −12)

The score moved with no change recorded against any check. We would rather say so than guess.

### 2026-09-17 (score 61, 0)

- [security regression] Endpoint reachability: reachable → unreachable
- [security regression] DNSSEC: fail → unverified
- [security regression] Stability: 0.37 → unverified
- [security regression] HSTS header: fail → unverified
- [security regression] Tool safety: pass → unverified
- [security regression] TLS certificate: pass → unverified
- [security regression] Transport: pass → fail
- [security improvement] HTTPS: unverified → pass
- [security] Authorization: Authorisation not yet verified: we couldn't confirm whether this endpoint requires it.
- [functional regression] Capabilities: pass → unverified
- [functional regression] Tool coverage: 100 → unverified
- [functional] First check of Schema quality: unverified

### 2026-09-16 (score 61, +1)

No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-14 (score 60, +1)

No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (7)

### `generate_uuid` (~108 tokens)

生成 UUID（通用唯一识别码）。支持 v4 随机 UUID（默认）和 v5 命名空间 UUID（SHA-1 确定性生成，需提供 namespace 和 name）。count 可一次生成多个（1~1000）。namespace 支持预定义名 dns/url/oid/x500 或完整 UUID 字符串。

Input parameters:

- `count` (integer)
- `name`
- `namespace`
- `version` (string)

### `convert_timestamp` (~134 tokens)

时间戳双向转换，时区统一北京时间(UTC+8)。传入 Unix 时间戳（整数秒或毫秒，自动识别；也接受数字字符串）返回 ISO 8601 北京时间字符串；传入日期/时间字符串（如 2026-09-05、2026-09-05 10:30:00、2026-09-05T10:30:00+08:00）返回 Unix 秒/毫秒时间戳；不传 value 返回当前时间的两种格式。

Input parameters:

- `to` (string)
- `value`

### `convert_unit` (~161 tokens)

单位换算，支持四类：长度(m/km/cm/mm/mile/foot/inch，含毫米/厘米/英里/英尺/英寸)、重量(kg/g/mg/t/lb/oz，含克/磅/盎司)、温度(c/f/k，摄氏度/华氏度/开尔文，自动做偏移换算)、数据存储(B/KB/MB/GB/TB/PB，按1024二进制换算)。不支持的单位或跨类别换算（如米换算成千克）会返回清晰错误。

Input parameters:

- `from_unit` (string, required)
- `to_unit` (string, required)
- `value` (number, required)

### `format_json` (~92 tokens)

JSON 字符串处理。action 支持：format（美化缩进2格，中文不转义）、minify（压缩为单行去空白）、validate（仅校验合法性，非法时返回错误行号、列号、位置指针和上下文片段）。输入 data 必须是字符串。

Input parameters:

- `action` (string)
- `data` (string, required)

### `generate_qr` (~143 tokens)

生成二维码。默认 format='svg' 返回 SVG 矢量图字符串（纯标准库生成，可直接保存为 .svg 文件，AI agent 可直接写文件）；format='png' 时返回 PNG 图片的 base64 编码和 data URI（需服务器安装 Pillow，未安装会返回提示）。content 支持 URL、纯文本、WiFi 配置（如 WIFI:T:WPA;S:网络名;P:密码;;）等任意字符串，上限 2000 字节。CPU 密集，走线程池不阻塞事件循环。

Input parameters:

- `content` (string, required)
- `format` (string)

### `query_npm_version` (~130 tokens)

查询 npm 包的最新版本信息。输入 npm 包名（如 react、vue、express、@vue/cli），返回最新版本号 latest_version、该版本发布时间 published_at（UTC ISO 8601）、包描述 description、开源协议 license，以及主页/仓库地址等。数据源优先官方 registry.npmjs.org，失败自动兜底淘宝镜像 registry.npmmirror.com（国内更快）。包不存在返回明确的 404 提示。网络 I/O 走线程池不阻塞事件循环。

Input parameters:

- `package` (string, required)

### `resolve_dns` (~163 tokens)

DNS 域名解析（DoH，JSON API）。输入域名 name（如 baidu.com、www.qq.com）和记录类型 type（A 默认/AAAA/CNAME/MX/TXT），返回解析记录列表（每条含 name、type、ttl、data；MX 数据为 优先级+邮件交换主机，TXT 为文本记录）。数据源优先阿里 DoH（dns.alidns.com，国内快），失败自动兜底 Cloudflare DoH。域名不存在返回 NXDOMAIN 提示；域名存在但无该类型记录时返回空列表并附说明。网络 I/O 走线程池不阻塞事件循环。

Input parameters:

- `name` (string, required)
- `type` (string)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/cn-pianam-mcp-devtools-mcp/devtools-mcp-mcp#diagnostics

## Score history

- 2026-09-25: 0
- 2026-09-24: 12
- 2026-09-23: 24
- 2026-09-22: 37
- 2026-09-21: 37
- 2026-09-20: 37
- 2026-09-19: 49
- 2026-09-18: 61
- 2026-09-17: 61
- 2026-09-16: 61
- 2026-09-15: 60
- 2026-09-14: 60
- 2026-09-13: 59
- 2026-09-12: 59
- 2026-09-11: 58
- 2026-09-10: 58
- 2026-09-09: 57
- 2026-09-08: 57
- 2026-09-07: 57
- 2026-09-06: 56
- 2026-09-05: 56

## Common questions

### What is the cn.pianam.mcp/devtools-mcp server?

cn.pianam.mcp/devtools-mcp is listed in the public MCP registry as cn.pianam.mcp/devtools-mcp. Developer toolkit: UUID, timestamp, unit conversion, JSON tools, and QR code (SVG). Free. This page covers its hosted endpoint (https://mcp.pianam.cn/devtools-mcp/mcp).

### Is the cn.pianam.mcp/devtools-mcp server safe to use?

cn.pianam.mcp/devtools-mcp scores 0 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 cn.pianam.mcp/devtools-mcp server expose?

cn.pianam.mcp/devtools-mcp exposes 7 tools: generate_uuid, convert_timestamp, convert_unit, format_json, generate_qr, and 2 more. Their descriptions and schemas cost roughly 931 tokens of context every time the server is loaded.

### Does the cn.pianam.mcp/devtools-mcp server require authentication?

Its publisher declares no required credentials for cn.pianam.mcp/devtools-mcp. We have not been able to confirm that against the live endpoint, and a server can require authorisation without declaring it here.

### Is the cn.pianam.mcp/devtools-mcp server still maintained?

cn.pianam.mcp/devtools-mcp has been unreachable for long enough that we treat it as dead, and its score is pinned to zero. We last reached this channel on 16 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://mcp.pianam.cn/devtools-mcp/mcp
- Repository: https://github.com/boy-373/devtools-mcp
- Changelog RSS feed: https://verifymcp.io/servers/cn-pianam-mcp-devtools-mcp/devtools-mcp-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/cn-pianam-mcp-devtools-mcp/devtools-mcp-mcp.json
- HTML version of this page: https://verifymcp.io/servers/cn-pianam-mcp-devtools-mcp/devtools-mcp-mcp