# useqr-mcp (npm · useqr-mcp)

Static QR PNG/SVG for agents. Designer and dynamic codes live at useqr.co.

- Trust score: 78/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-20

## Components

- remote · `useqr.co`: 74/100, [markdown](https://verifymcp.io/servers/aaronte-useqr-mcp/api-mcp.md), [page](https://verifymcp.io/servers/aaronte-useqr-mcp/api-mcp)
- npm · `useqr-mcp`: 78/100 (this document), [markdown](https://verifymcp.io/servers/aaronte-useqr-mcp/useqr-mcp.md), [page](https://verifymcp.io/servers/aaronte-useqr-mcp/useqr-mcp)

## Channel facts

- Registry: `npm`
- Package: `useqr-mcp`
- Version: `1.0.0`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, 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 2026-09-20.

- **Supply Chain Security**: 98/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 42 of 125 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 15 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 79/100
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 299 tokens (~99/item across 3 items; 3 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 53/100
  - Stability observed for 16 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 3 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the useqr-mcp server?

useqr-mcp runs locally as an npm package, launched with npx -y useqr-mcp. 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 aaronte-useqr-mcp -- npx -y useqr-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "aaronte-useqr-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "useqr-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "aaronte-useqr-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "useqr-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add aaronte-useqr-mcp -- npx -y useqr-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "aaronte-useqr-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "useqr-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add aaronte-useqr-mcp --command npx --arg -y --arg useqr-mcp
```

### Hermes

```yaml
mcp_servers:
  aaronte-useqr-mcp:
    command: "npx"
    args: ["-y", "useqr-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "aaronte-useqr-mcp": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "useqr-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add aaronte-useqr-mcp -t stdio -c npx -a -y useqr-mcp
```

### Other

```json
{
  "mcpServers": {
    "aaronte-useqr-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "useqr-mcp"
      ]
    }
  }
}
```

## 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.

### 2026-09-19 (score 78, +1)

No change was recorded against any check on this day. Stability & Change Management went from 47 to 50. That category is still filling its 30-day observation window: 14 days of observed history at the previous scan, 15 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-17 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 40 to 43. That category is still filling its 30-day observation window: 12 days of observed history at the previous scan, 13 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-15 (score 76, +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.

### 2026-09-13 (score 75, +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.

### 2026-09-12 (score 74, +3)

- [functional improvement] Stability: unverified → 0.27

### 2026-09-04 (score 71)

First indexed and scored.

## MCP tools (3)

### `generate_qr_code` (~152 tokens)

Generate a static QR code

Encode text or a URL as a local static QR image (PNG) or SVG markup. Does not create a dynamic or trackable code.

Input parameters:

- `background` (string): Background color as #RRGGBB, default #ffffff
- `data` (string, required): Text or URL to encode, max 2000 characters
- `error_correction` (string): QR error correction L, M (default), Q, or H
- `foreground` (string): Module color as #RRGGBB, default #0a0a0a
- `format` (string): png (default) or svg
- `size` (integer): Pixel size 128-2048, default 512

### `get_qr_designer_link` (~58 tokens)

Get a UseQR designer link

Return a link to the free designer at https://useqr.co. Prefills ?url= when data is an http(s) URL.

Input parameters:

- `url` (string): Optional http(s) URL to prefill in the designer.

### `create_dynamic_qr_code` (~32 tokens)

How to create a dynamic QR code

Explain how to create a trackable dynamic QR on useqr.co. This tool does not mint codes.

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/aaronte-useqr-mcp/useqr-mcp#diagnostics

## Score history

- 2026-09-20: 78
- 2026-09-19: 78
- 2026-09-18: 77
- 2026-09-17: 77
- 2026-09-16: 76
- 2026-09-15: 76
- 2026-09-14: 75
- 2026-09-13: 75
- 2026-09-12: 74
- 2026-09-11: 71
- 2026-09-10: 71
- 2026-09-09: 71
- 2026-09-08: 71
- 2026-09-07: 71
- 2026-09-06: 71
- 2026-09-05: 71
- 2026-09-04: 71

## Common questions

### What is the useqr-mcp server?

useqr-mcp is listed in the public MCP registry as io.github.aaronte/useqr-mcp. Static QR PNG/SVG for agents. Designer and dynamic codes live at useqr.co. This page covers its npm package (useqr-mcp).

### Is the useqr-mcp server safe to use?

useqr-mcp scores 78 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 20 September 2026. It declares no install or post-install scripts. 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 useqr-mcp server expose?

useqr-mcp exposes 3 tools: generate_qr_code, get_qr_designer_link, create_dynamic_qr_code. Their descriptions and schemas cost roughly 242 tokens of context every time the server is loaded.

### Is the useqr-mcp server still maintained?

useqr-mcp is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the useqr-mcp server under?

useqr-mcp declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- npm package: https://www.npmjs.com/package/useqr-mcp
- Socket report: https://socket.dev/npm/package/useqr-mcp
- Repository: https://github.com/aaronte/useqr-mcp
- Website: https://useqr.co/
- Changelog RSS feed: https://verifymcp.io/servers/aaronte-useqr-mcp/useqr-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/aaronte-useqr-mcp/useqr-mcp.json
- HTML version of this page: https://verifymcp.io/servers/aaronte-useqr-mcp/useqr-mcp