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QRMint by Harlo

dev.workers.mike-tusa.qrmint/qrmintqrmint.mike-tusa.workers.devstreamable-httpv0.1.0Scanned

Static QR codes and 1-D barcodes (Code 128, EAN-13, UPC-A, EAN-8) as SVG, PNG or data URL.

4 tools: 3 change things and 1 only read.

Tools: 0 delete, 0 irreversible, 3 write, 1 read.
  • Reads private data · 0
  • Reads text others write · 0
  • Can send data out · 0
  • 2 findings

Anlyon alternative

3 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

Import an OpenAPI spec →
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Tools

Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.

4 tools

Changes things 3Claude Code: ask
  • barcode_generateCode 128, EAN-13, UPC-A or EAN-8 as SVG/PNG/data URL.1 finding

    Why it is in this group

    • The name "barcode_generate" says "generate": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "barcode_generate" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "barcode_generate" says "generate": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Code 128, EAN-13, UPC-A or EAN-8 as SVG/PNG/data URL. EAN/UPC: pass digits without check digit to have it added, or with it to verify. Static codes only: no redirects, no dynamic/editable codes, no scan analytics. EAN/UPC output is format-valid (check digit) and is NOT GS1 registration. Scannability is not guaranteed (contrast, print size, quiet zone and reader all matter).

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • qr_generateGenerate a static QR code as SVG (default, up to 2000 px), PNG base64 or data URL (up to 1024 px) from data or a payload object.1 finding

    Why it is in this group

    • The name "qr_generate" says "generate": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "qr_generate" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "qr_generate" says "generate": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Generate a static QR code as SVG (default, up to 2000 px), PNG base64 or data URL (up to 1024 px) from data or a payload object. Bulk (/v1/qr/bulk, ≤50) is SVG-only, ≤256 bytes per item. Static codes only: no redirects, no dynamic/editable codes, no scan analytics. EAN/UPC output is format-valid (check digit) and is NOT GS1 registration. Scannability is not guaranteed (contrast, print size, quiet zone and reader all matter).

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • qr_payload_buildBuild and validate a QR payload string for type text/url/wifi/vcard/mailto/tel/sms/geo (e.g.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Build and validate a QR payload string for type text/url/wifi/vcard/mailto/tel/sms/geo (e.g. {"type":"wifi","ssid":"Cafe","password":"..."}). Returns the string only.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
Only reads 1Show 1 read-only tool
  • qr_inspectReturn QR version, ECC, module count, capacity used % and quiet-zone/density warnings for data.No findings

    Why it is in this group

    • The name "qr_inspect" says "inspect": a word for reading.
    Description, as the server wrote it
    Return QR version, ECC, module count, capacity used % and quiet-zone/density warnings for data. No image.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or untrusted-input or outbound.

Reads private data0
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write0
Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out0
Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Findings

Matches of fixed checks, with the text they matched.

2 warn
  • Warnqr_generate

    The server marks "qr_generate" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "qr_generate" says "generate": a word for a change.

    What this check looks for
  • Warnbarcode_generate

    The server marks "barcode_generate" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "barcode_generate" says "generate": a word for a change.

    What this check looks for

History

Changes to its tool definitions and to its remote endpoint, newest first.

No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.

All changes to this server

Install

Pinned to version 0.1.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http qrmint https://qrmint.mike-tusa.workers.dev/mcp
claude mcp add --transport http qrmint https://qrmint.mike-tusa.workers.dev/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__qrmint__qr_inspect"
    ],
    "ask": [
      "mcp__qrmint__qr_generate",
      "mcp__qrmint__barcode_generate",
      "mcp__qrmint__qr_payload_build"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as qrmint. Review it before you use it.

Pin

Keep the decision: fail CI when the tools change, follow every change, or show a badge.

Pin in CI

Fail a build when the tools you reviewed are not the tools the server serves today.

curl -s "https://anlyon.dev/api/v1/servers/dev.workers.mike-tusa.qrmint/qrmint/verify?hash=73d7200a6502927ba13336a3be035aa8f90df25a33a90720a16f5b0827bf9e54" | jq -e '.changed == false'

Pinned hash 73d7200a6502, from Nov 1, 2026, 17:18 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/dev.workers.mike-tusa.qrmint/qrmint/changes.xml

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Source: MCP Registry. Synced Nov 1, 2026, 17:17 UTC.