# QRCode.Pub tools (remote · qrcode.pub)

Free QR code images; paid web page → Markdown, page metadata and file hosting via x402 (no API key).

- Trust score: 70/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-18

## Components

- remote · `qrcode.pub`: 70/100 (this document), [markdown](https://verifymcp.io/servers/pub-qrcode-tools/qrcode.md), [page](https://verifymcp.io/servers/pub-qrcode-tools/qrcode)

## Channel facts

- Endpoint: `https://qrcode.pub/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 2026-10-18.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS check failed: the endpoint is reachable over plaintext HTTP.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - 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**: 70/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 835 tokens (~208/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 43/100
  - Stability observed for 13 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 4 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

## Install

### How do I install the QRCode.Pub tools MCP server?

QRCode.Pub tools is a hosted endpoint at https://qrcode.pub/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 pub-qrcode-tools 'https://qrcode.pub/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "pub-qrcode-tools": {
      "url": "https://qrcode.pub/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "pub-qrcode-tools": {
      "type": "http",
      "url": "https://qrcode.pub/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.pub-qrcode-tools]
url = "https://qrcode.pub/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "pub-qrcode-tools": {
      "type": "remote",
      "url": "https://qrcode.pub/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add pub-qrcode-tools --url 'https://qrcode.pub/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  pub-qrcode-tools:
    url: "https://qrcode.pub/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "pub-qrcode-tools": {
      "Transport": "http",
      "Url": "https://qrcode.pub/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add pub-qrcode-tools -t streamable-http -u 'https://qrcode.pub/mcp'
```

### Other

```json
{
  "mcpServers": {
    "pub-qrcode-tools": {
      "type": "http",
      "url": "https://qrcode.pub/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.

### 2026-10-17 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-15 (score 69, +1)

No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-13 (score 68, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-10 (score 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 17. That category is still filling its 30-day observation window: 3 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.

### 2026-10-08 (score 66)

First indexed and scored.

## MCP tools (4)

### `qr_code` (~154 tokens)

QR code image (free)

Generate a QR code image (PNG or SVG) for any text or link. Free, no account. The answer carries the image and a permanent image URL you can embed or print.

Input parameters:

- `bgcolor` (string): Background hex, e.g. ffffff
- `color` (string): Foreground hex, e.g. 1a237e (default 000000)
- `data` (string, required): Text or URL to encode (max 2000 chars)
- `ecc` (string): Error correction (default M)
- `format` (string): Image format (default png)
- `margin` (integer): Quiet zone in modules (default 4)
- `size` (integer): Pixels (default 300)

### `page_to_markdown` (~147 tokens)

Web page → Markdown ($0.01/call)

Fetch a public web page and return its title, description, clean Markdown (scripts, styles, nav chrome removed) and the list of links. No model call, deterministic. Price: $0.01 USDC per call via x402 (USDC on Base or Solana, no account; nothing is charged for a bad input).

Input parameters:

- `payment` (string): x402 payment: the base64 PAYMENT-SIGNATURE value (x402 v2 payment payload signed for one entry of the `accepts` list returned when this tool is called without it). Omit to get the price and payment r…
- `url` (string, required): Public http(s) page to fetch

### `page_metadata` (~144 tokens)

Web page metadata ($0.005/call)

Fetch a public web page and return its metadata: title, description, canonical URL, language, OpenGraph and Twitter card tags, icons and parsed JSON-LD blocks. Price: $0.005 USDC per call via x402 (USDC on Base or Solana, no account; nothing is charged for a bad input).

Input parameters:

- `payment` (string): x402 payment: the base64 PAYMENT-SIGNATURE value (x402 v2 payment payload signed for one entry of the `accepts` list returned when this tool is called without it). Omit to get the price and payment r…
- `url` (string, required): Public http(s) page to fetch

### `host_file` (~247 tokens)

Host a file at a public URL for 30 days ($0.01/call)

Upload a file (≤ 5 MB; png, jpeg, webp, gif, pdf, json, txt, md or csv) and get a stable public URL https://qrcode.pub/f/<id> that any agent, tool or browser can fetch for 30 days. Nothing executable is accepted. The answer includes a delete token. Price: $0.01 USDC per call via x402 (USDC on Base or Solana, no account; nothing is charged for a bad input).

Input parameters:

- `content` (string, required): The file: plain text, or base64 when encoding is "base64" (binary types must be base64)
- `content_type` (string, required): MIME type of the file
- `encoding` (string): How `content` is encoded (default text)
- `name` (string): Optional file name (letters, digits, . - _; max 80 chars)
- `payment` (string): x402 payment: the base64 PAYMENT-SIGNATURE value (x402 v2 payment payload signed for one entry of the `accepts` list returned when this tool is called without it). Omit to get the price and payment r…

## Diagnostics

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

## Score history

- 2026-10-18: 70
- 2026-10-17: 70
- 2026-10-16: 69
- 2026-10-15: 69
- 2026-10-14: 68
- 2026-10-13: 68
- 2026-10-12: 67
- 2026-10-10: 67
- 2026-10-08: 66

## Common questions

### What is the QRCode.Pub tools MCP server?

QRCode.Pub tools is an MCP server listed in the public MCP registry as pub.qrcode/tools. Free QR code images; paid web page → Markdown, page metadata and file hosting via x402 (no API key). This page covers its hosted endpoint (https://qrcode.pub/mcp).

### Is the QRCode.Pub tools MCP server safe to use?

QRCode.Pub tools scores 70 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 QRCode.Pub tools MCP server expose?

QRCode.Pub tools exposes 4 tools: qr_code, page_to_markdown, page_metadata, host_file. Their descriptions and schemas cost roughly 692 tokens of context every time the server is loaded.

### Does the QRCode.Pub tools MCP server require authentication?

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

### Is the QRCode.Pub tools MCP server still maintained?

QRCode.Pub tools is still listed as active in the MCP registry. We last reached this channel on 18 October 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://qrcode.pub/mcp
- Website: https://qrcode.pub/qr-code-api#mcp
- Changelog RSS feed: https://verifymcp.io/servers/pub-qrcode-tools/qrcode.xml
- Changelog JSON feed: https://verifymcp.io/servers/pub-qrcode-tools/qrcode.json
- HTML version of this page: https://verifymcp.io/servers/pub-qrcode-tools/qrcode