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QRSmith

Real QR code generation (text, URL, Wi-Fi, vCard), decoding, and error-correction reference

Unify Dynamics LLC

Documentation
Tools3read-only
Sign-inNoneno account, no key
Data keptNoneprocessed in memory
PriceFreeoptional Pro limits
StatusLiveMCP + REST
Works withMCP · RESTany agent

Try asking

Real questions, and the tools your agent calls to answer them.

Make a QR code for https://example.com
Tools called
qr_generate
QR code for my wifi network 'HomeNet' with password hunter2
Tools called
qr_generate
QR code contact card for Jane Doe, jane@example.com
Tools called
qr_generate
What does this QR code image say?
Tools called
qr_decode
What error correction level should I use for a logo overlay?
Tools called
qr_error_correction_levels

About

QRSmith generates real QR codes, computed locally with no upstream calls. qr_generate encodes plain text, a URL, a Wi-Fi network (built into the standard Wi-Fi QR format with correct escaping), or a vCard 3.0 contact card into a genuine QR code using real Reed-Solomon error-correction encoding, returned as a base64 PNG or SVG, with the code's QR version and module count. qr_decode reads a base64-encoded QR image back to its text where the deployment's zbar library is available, and reports plainly (decode_available: false) rather than guessing when it is not. qr_error_correction_levels explains the QR standard's real L/M/Q/H recovery percentages and when to use each. Keyless; fully local; zero upstream calls; nothing stored.

Sources: Computed locally / hand-curated QR standard (ISO/IEC 18004) reference; fully local, zero upstream calls

Privacy

The publisher, Unify Dynamics LLC, states that tool inputs are processed in memory and not retained.

Data not collectedNo account, no profile, no stored prompts or results.
Privacy policyTerms

What it can do

3 tools, grouped by job. Every one is read-only or compute-only.

OpenAPI
Generate1 tools
  • Qr generateGenerate a real QR code from text, a URL, a Wi-Fi network, or a vCard contact — as a base64 PNG or SVG.
Decode1 tools
  • Qr decodeDecode a QR code image back to its text content.
Reference1 tools
  • Qr error correction levelsThe QR standard's four error-correction levels (L/M/Q/H) with real recovery percentages and when to use each.

Information

PublisherUnify Dynamics LLC
CategoryDeveloper tools
LanguagesEnglish
Built forGlobal
CompatibilityAny MCP client · any agent · REST
Version0.1.0
MCP endpointhttps://qrsmith.connectorbay.com/mcp
REST APIopenapi.json
SupportGet help · Status
CountryWorldwide

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Documentation

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What QRSmith is for

Generating a real QR code — for a URL, plain text, a Wi-Fi network your guests can join by scanning, or a vCard contact card — without opening a design tool or a sketchy web widget, plus reading a QR code image back to its text, and explaining what the QR standard's error-correction levels actually mean.

What it does

Generate — qr_generate encodes text, a URL, a Wi-Fi network (kind='wifi', with SSID/password/security/ hidden — built into the real Wi-Fi QR format, with special characters correctly escaped), or a contact card (kind='vcard', RFC 2426 vCard 3.0) into a genuine QR code using real Reed-Solomon error-correction encoding — not a placeholder image. Choose an error-correction level and get PNG (base64) or SVG back, with the code's QR version and module count. Decode — qr_decode reads a QR code image (base64-encoded) back to its text, where the deployment supports it (see below). Reference — qr_error_correction_levels gives the real L/M/ Q/H recovery percentages from the QR standard and when to use each.

A note on decoding

Generation has no external dependency beyond pure Python. Decoding uses a system library (zbar) that a serverless deployment does not always have installed; qr_decode checks for it on each call and returns decode_available: false with a plain explanation when it is not there, rather than failing the whole connector or fabricating a result. Generation and the error-correction reference always work regardless.

What it is not

QRSmith doesn't store or design custom-branded QR codes with embedded logos, doesn't read barcodes other than QR (no UPC/Code128/PDF417), and its Wi-Fi and vCard builders cover the common fields, not every optional vCard property.

Privacy policy

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QRSmith — Privacy Policy

Effective 28 September 2026. Unify Dynamics LLC ("we", "us"), Menlo Park, California.

What QRSmith is. QRSmith is a connector (an MCP server and REST API) that AI assistants and personal agents call on your behalf to generate and decode QR codes and to explain QR error-correction levels. You interact with your assistant; the assistant sends us only the values needed for that one calculation.

What we receive. The arguments of each tool call — for generation: the text, URL, Wi-Fi credentials, or vCard fields you asked to encode, plus your chosen error-correction level and output options; for decoding: the base64-encoded image you asked us to read — the technical headers needed to serve the request (an IP address or a client identifier supplied by the assistant, and a Pro API key if you have one), and standard server logs.

Everything is computed on our server and nothing is stored. QR generation and decoding are pure computation (the qrcode and, where available, pyzbar libraries) run for that one request; no request is forwarded to any third party. We do not store the text, image, network credentials, or contact details you send for encoding or decoding — including Wi-Fi passwords, which pass through the same one-request-and-gone handling as everything else and are never logged in request bodies or written to disk.

What we do not receive or store. We do not receive your conversation with the assistant, your name, contacts, or account credentials beyond what you explicitly ask us to encode into a QR code. Rate-limit counters (a client identifier and timestamps) are held in memory for at most 24 hours. Hosting-provider access logs, which contain IP addresses and request paths but not request bodies, are retained for up to 30 days for security and abuse prevention.

Sub-processors. None — every tool is computed locally. Hosting: Vercel (United States regions).

Legal bases and your rights. For users in California, the EU/UK and elsewhere, our processing is necessary to provide the service you request through your assistant. Because we store no personal data beyond short-lived logs, requests to access, correct or delete personal data are usually satisfied automatically; you can still contact agent@connectorbay.com and we will respond within 30 days. We do not sell or share personal information and do not use your data to train models.

A note on sensitive input. Wi-Fi passwords and contact details are, by nature, sensitive — we do not retain them, but treat any tool that echoes them back (as a QR code necessarily does) with the same care you'd give any other place you paste a credential.

Children. QRSmith is a general-audience service operated by the adult using the assistant.

Changes. We will post changes here with a new effective date.

Terms of service

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QRSmith — Terms of Service

Effective 28 September 2026. These terms govern use of the QRSmith connector ("the Service") operated by Unify Dynamics LLC ("we", "us").

  1. The Service. QRSmith generates QR codes (text, URL, Wi-Fi, vCard) as PNG or SVG, best-effort decodes a QR code image back to text, and explains the QR standard's error-correction levels — computed from the qrcode and (where available) pyzbar libraries. It is accessed through an AI assistant or directly over MCP or HTTP.
  2. Decoding availability is not guaranteed. qr_decode depends on a system library that may not be present in every deployment of this Service; when unavailable, the tool reports this plainly rather than fabricating a result. Do not build a workflow that assumes decoding is always available.
  3. Not a security tool. Encoding a Wi-Fi password or contact detail into a QR code does not encrypt or protect it; anyone who scans the code can read it. You are responsible for who you share a generated code with.
  4. Acceptable use. Do not use the Service to mass-generate QR codes for spam, phishing, or malware distribution, or to decode QR codes you do not have the right to read. Automated use within the published rate limits is welcome.
  5. Availability. The Service is provided "as is" without warranty. We may change, limit or discontinue it at any time.
  6. Data. Our Privacy Policy describes what we process. In short: your input is answered on our server and nothing is stored.
  7. Pro keys. Optional Pro API keys are issued at our discretion, are personal to the holder and may be revoked for abuse.
  8. Liability. To the fullest extent permitted by law, Unify Dynamics LLC is not liable for any loss arising from use of or reliance on the Service, including reliance on a QR code's contents or on decode availability. Our total liability is limited to US $100.
  9. Governing law. California law; venue in San Mateo County, California.
  10. Contact. Unify Dynamics LLC · agent@connectorbay.com · https://connectorbay.com/qrsmith

Support

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QRSmith support

Email agent@connectorbay.com. We answer within two business days.

When you report a problem, include the question you asked your agent, roughly when, and which agent you used (for example Claude, ChatGPT or Gemini). Never send us passwords, account numbers or ID numbers. QRSmith never asks for them.

Get QRSmith

Free · No sign-in · Read-only

Streamable HTTP, stateless, no authentication. Paste the endpoint into any MCP-capable agent.

https://qrsmith.connectorbay.com/mcp
{
  "mcpServers": {
    "qrsmith": {
      "type": "http",
      "url": "https://qrsmith.connectorbay.com/mcp"
    }
  }
}