io.github.theluckystrikePublished by GitHub account theluckystrikev0.23.0Updated Nov 3, 2026
QR codes for URLs, WiFi, vCards and SEPA payments, plus Code 128 and EAN-13 barcodes.
McpStamp QR Codes and Barcodes's hosted MCP server (mcp.zovo.one); no sign-in required; Streamable HTTP; 10 tools.
No AI overview yet: these facts come from the registry entry and the server itself.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.
Read https://sourceweft.com/mcp/io.github.theluckystrike%2Fbarcode-qr-code-sepa-payment-ean13/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.Add this to your client's mcpServers config.
{
"mcpServers": {
"mcpstamp-qr-codes-and-barcodes": {
"type": "http",
"url": "https://mcp.zovo.one/mcp/barcode"
}
}
}Make a QR code or a barcode in the conversation you are already in. Paste a URL and get a QR code you can put on a flyer. Give a client's invoice an EPC payment code their banking app scans and fills in for them. Print an EAN-13 for a product, a Code 128 for a shelf label, a WiFi code for the office wall, a vCard for a conference badge. Everything is drawn on your machine: no upload, no account, no API key, and no network call of any kind.
In the official MCP Registry (io.github.theluckystrike/barcode-qr-code-sepa-payment-ean13).
Listed on the AI Product Index - live remote endpoint at mcp.zovo.one/s/barcode, free tier, no signup.
npm publish for @theluckystrike/mcp-barcode is pending, so npx -y @theluckystrike/mcp-barcode returns 404 today. Until then, the .mcpb one-click bundle or a clone+build is the working path.
Claude Desktop, ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or
%APPDATA%\Claude\claude_desktop_config.json (Windows):
Claude Code:
Cursor, .cursor/mcp.json:
Get Pro: https://mcp.zovo.one/buy/barcode - $19 one time, or $39 for every server in the suite, lifetime. Keys verify offline; nothing is sent anywhere.
Give barcode_create twelve digits and the thirteenth is computed for you. Give it thirteen and the thirteenth is
checked:
The alternative, silently redrawing the code the caller asked for, prints a label that scans as a different product, and nobody finds out until the till. The same rule applies to the IBAN in a payment code: it is validated with ISO 7064 mod 97 before anything is drawn, so a transposed pair of digits is caught here rather than by a payment that goes nowhere.
A typical EPC payment record (IBAN, beneficiary, EUR 120.50, an invoice number) is 73 bytes. QR codes come in fixed capacity steps, so raising the error correction level does not raise the code size smoothly:
L and M land in the same version 4 symbol: at this payload size the extra recovery data still fits in the same
box, so choosing L over M buys nothing and gives up half the damage tolerance. That is why M is the default
here. Q and H are worth asking for only when the code will be printed small, on something that creases, or
behind a logo. On a 300 px PNG the same step costs bytes too: 2,419 at M against 3,462 at H.
The same payment code written both ways, at five sizes:
An SVG carries the module grid, not the pixels, so its size barely moves: the two extra bytes at 1024 px are the width attribute getting longer. Below roughly 200 px a PNG is smaller; above it the PNG grows without limit and the SVG does not, and the SVG is the one that stays sharp when a printer scales it up. That is the reason the free tier is the SVG tier rather than a small-PNG tier: for the thing most people do with a code, put it in a document and print it, SVG is the better file, not the consolation prize.
Everything stays on your machine. There is no network code in this server at all: no fetch, no HTTP client,
no telemetry. Codes are written where you say, and a small register of what was generated lives under
~/.local/share/mcp-servers/barcode/ (or $XDG_DATA_HOME). License keys verify offline with a public key.
Built by theluckystrike. Support: [email protected]
Any MCP client (Claude, Cursor, Windsurf, VS Code) can read this repository's documentation directly via GitMCP - no install:
Source: servers/barcode/README.md at commit 6535b33
License status
Report this endpoint's licence state for your token as JSON: the product, the tier free or pro, why it is not Pro, and the checkout URL. Call it to explain a free-tier refusal. No arguments, nothing changes.
Takes no parameters.
Activate license
Turn Pro on for this connection with key, an MCPL1.<payload>.<signature> issued at checkout for this server or the bundle. Data under your token stays; a wrong or expired key changes nothing. license_status confirms it.
keyrequiredQR code
Call this tool to turn text or a URL into a QR code: SVG inline, or a PNG at a pixel size to out_path (Pro). Returns version, module grid and payload size. Free: 20 codes a month on this server.
sizetextrequiredformatmarginout_pathoverwriteerror_correctionWiFi QR code
Call this tool to make a QR code that joins a WiFi network when scanned: ssid, password and auth type, written to out_path or returned as SVG. Free: 20 codes a month. qr_create takes plain text or a URL.
authsizessidrequiredformathiddenmarginout_pathpasswordoverwriteerror_correctionContact QR code
Call this tool to make a QR code that adds a contact when scanned (vCard 3.0). For your own card pass nothing: name, phone, email and address default to the shared business profile, never asked for.
orgurlnamenotesizeemailphonetitleformatmarginaddressout_path+2 moreSEPA payment QR code
Call this tool for an EPC069-12 payment QR a euro banking app can scan. Amount and reference are enough: the beneficiary IBAN and name default to the shared business profile, never asked for.
bicibannamesizeamountformatmarginpurposecurrencyout_pathoverwritereference+2 morePayment QR for an invoice
Call this tool for a SEPA payment QR from just an amount and reference: IBAN and name are read from the shared business profile, never asked for; pass invoice_id instead to take the amount from an invoice.
ibannamesizeamountformatmarginout_pathoverwritereferenceinvoice_iderror_correctionBarcode
Call this tool to draw a linear barcode (code128, ean13, ean8, upca) as SVG, or PNG to out_path. A short EAN or UPC gets its check digit computed; a wrong one is refused, never redrawn. qr_create makes QR codes.
textvaluerequiredformatheightout_pathoverwritesymbologyrequiredmodule_widthBarcodes in bulk
Call this tool to draw many barcodes or QR codes at once from a list of rows, each with its own value and file name. Every row comes back as its own download link valid for one hour. Pro; the free tier does one code per call.
textitemsrequiredformatheightout_dirout_pathoverwritesymbologymodule_widthstop_on_errorCodes generated
List the codes this server generated, newest first, with what each carried and where it went, plus how much of the free 20 a month is used. Filter by kind. It reads the register, not the files.
kindlimit100% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
{ "mcpServers": { "barcode": { "command": "npx", "args": ["-y", "@theluckystrike/mcp-barcode"] } }}claude mcp add barcode -- npx -y @theluckystrike/mcp-barcode{ "mcpServers": { "barcode": { "command": "npx", "args": ["-y", "@theluckystrike/mcp-barcode"] } }}Error: EAN-13 check digit is wrong: "5901234123450" ends in 0, but the first 12 digits give 7.Pass 5901234123457, or pass the first 12 digits and the check digit is computed. Nothing was written.