label
Generate barcode and QR labels offline for products, packages and assets.
我该使用它吗
质量与安全性
A
基于对工具定义和协议合规性的自动分析。
上下文开销
~3,554token 数（工具定义）
~3.3 KB典型响应大小
对注意力有显著影响（占 128k 上下文窗口的 2.78%）
这是每次将服务器的工具加载到模型上下文窗口时所消耗的大致 token 数。数值越高，可用于其他任务的注意力就越少。
安装
一键安装
将以下内容添加到你的 `claude_desktop_config.json` 文件中：
{
"mcpServers": {
"label": {
"command": "uvx",
"args": [
"https://github.com/theluckystrike/mcp-servers/releases/download/v0.21.0/barcode.mcpb"
]
}
}
}可运行的软件包
mcpbhttps://github.com/theluckystrike/mcp-servers/releases/download/v0.21.0/barcode.mcpb
0.21.0stdiomcpbhttps://github.com/theluckystrike/mcp-servers/releases/download/v0.22.0/barcode.mcpb
0.22.0stdio远程端点
https://mcp.zovo.one/mcp/labelstreamable-http它能做什么
工具清单
工具（10）
🟢 只读🟡 写入🔴 删除⚪ 未知
🟢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.
输入模式
{
"type": "object",
"properties": {},
"$schema": "http://json-schema.org/draft-07/schema#"
}⚪license_activate(key)
Turn Pro on for this connection with key, an MCPL1.<payload>.<signature> issued at checkout for this server or the bundle. Data under your token stays; a wrong or expired key changes nothing. license_status confirms it.
输入模式
{
"type": "object",
"properties": {
"key": {
"type": "string",
"description": "License key from checkout, MCPL1.<payload>.<signature>"
}
},
"required": [
"key"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟡qr_create(text, error_correction, size, margin, format, ...)
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.
输入模式
{
"type": "object",
"properties": {
"text": {
"type": "string",
"description": "The text or URL the code carries"
},
"error_correction": {
"type": "string",
"enum": [
"L",
"M",
"Q",
"H"
],
"description": "L 7%, M 15% (default), Q 25%, H 30% of the code recoverable when damaged"
},
"size": {
"type": "integer",
"description": "PNG width in pixels, 32 to 4000 (default 300). SVG scales without it"
},
"margin": {
"type": "integer",
"minimum": 0,
"maximum": 20,
"description": "Quiet zone in modules, default 4, which is what the QR standard requires"
},
"format": {
"type": "string",
"enum": [
"svg",
"png"
],
"description": "svg (default, free) or png (Pro)"
},
"out_path": {
"type": "string",
"description": "Name for the downloaded file, e.g. acme-code. SVG is returned inline when this is left out; a PNG always comes back as a download link valid for one hour"
},
"overwrite": {
"type": "boolean",
"description": "Replace a file of the same name already produced in this request (default false)"
}
},
"required": [
"text"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟡qr_wifi(ssid, password, auth, hidden, error_correction, ...)
Call this tool to make a QR code that joins a WiFi network when scanned: ssid, password and auth type, written to out_path or returned as SVG. Free: 20 codes a month. qr_create takes plain text or a URL.
输入模式
{
"type": "object",
"properties": {
"ssid": {
"type": "string",
"description": "Network name, exactly as it appears"
},
"password": {
"type": "string",
"description": "Passphrase. Leave out only for an open network"
},
"auth": {
"type": "string",
"enum": [
"WPA",
"WEP",
"nopass"
],
"description": "WPA (default when a password is given), WEP, or nopass for an open network"
},
"hidden": {
"type": "boolean",
"description": "True if the network does not broadcast its name"
},
"error_correction": {
"type": "string",
"enum": [
"L",
"M",
"Q",
"H"
],
"description": "L 7%, M 15% (default), Q 25%, H 30% of the code recoverable when damaged"
},
"size": {
"type": "integer",
"description": "PNG width in pixels, 32 to 4000 (default 300). SVG scales without it"
},
"margin": {
"type": "integer",
"minimum": 0,
"maximum": 20,
"description": "Quiet zone in modules, default 4, which is what the QR standard requires"
},
"format": {
"type": "string",
"enum": [
"svg",
"png"
],
"description": "svg (default, free) or png (Pro)"
},
"out_path": {
"type": "string",
"description": "Name for the downloaded file, e.g. acme-code. SVG is returned inline when this is left out; a PNG always comes back as a download link valid for one hour"
},
"overwrite": {
"type": "boolean",
"description": "Replace a file of the same name already produced in this request (default false)"
}
},
"required": [
"ssid"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}⚪qr_vcard(name, org, title, phone, email, ...)
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.
输入模式
{
"type": "object",
"properties": {
"name": {
"type": "string",
"description": "Full name, for example Anna Kowalska. Defaults to the shared business profile's name; pass it only for someone else's card"
},
"org": {
"type": "string",
"description": "Company or organisation"
},
"title": {
"type": "string",
"description": "Job title"
},
"phone": {
"type": "string",
"description": "Phone number, in the form it should be dialled. Defaults to the shared business profile"
},
"email": {
"type": "string",
"description": "Email address. Defaults to the shared business profile"
},
"url": {
"type": "string",
"description": "Website"
},
"address": {
"type": "string",
"description": "Postal address, one line. Defaults to the shared business profile"
},
"note": {
"type": "string",
"description": "Free note stored on the contact"
},
"error_correction": {
"type": "string",
"enum": [
"L",
"M",
"Q",
"H"
],
"description": "L 7%, M 15% (default), Q 25%, H 30% of the code recoverable when damaged"
},
"size": {
"type": "integer",
"description": "PNG width in pixels, 32 to 4000 (default 300). SVG scales without it"
},
"margin": {
"type": "integer",
"minimum": 0,
"maximum": 20,
"description": "Quiet zone in modules, default 4, which is what the QR standard requires"
},
"format": {
"type": "string",
"enum": [
"svg",
"png"
],
"description": "svg (default, free) or png (Pro)"
},
"out_path": {
"type": "string",
"description": "Name for the downloaded file, e.g. acme-code. SVG is returned inline when this is left out; a PNG always comes back as a download link valid for one hour"
},
"overwrite": {
"type": "boolean",
"description": "Replace a file of the same name already produced in this request (default false)"
}
},
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}⚪qr_payment_sepa(iban, name, amount, currency, bic, ...)
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.
输入模式
{
"type": "object",
"properties": {
"iban": {
"type": "string",
"description": "Beneficiary IBAN. Defaults to the iban in the shared business profile (set once with the invoice server's business_set). Checked with ISO 7064 mod 97 and refused if it does not validate"
},
"name": {
"type": "string",
"description": "Beneficiary name, up to 70 characters. Defaults to the name in the shared business profile"
},
"amount": {
"type": "number",
"description": "Amount in EUR, 0.01 to 999999999.99. Leave out and the payer types it"
},
"currency": {
"type": "string",
"description": "EUR only; any other value is refused, because EPC encodes a SEPA credit transfer"
},
"bic": {
"type": "string",
"description": "Beneficiary BIC. Optional under EPC version 002"
},
"remittance": {
"type": "string",
"description": "Free payment text, up to 140 characters, for example an invoice number"
},
"reference": {
"type": "string",
"description": "Structured creditor reference (RF...), up to 35. Use this OR remittance, never both"
},
"purpose": {
"type": "string",
"description": "Four-letter ISO 20022 purpose code, for example GDDS"
},
"error_correction": {
"type": "string",
"enum": [
"L",
"M",
"Q",
"H"
],
"description": "L 7%, M 15% (default), Q 25%, H 30% of the code recoverable when damaged"
},
"size": {
"type": "integer",
"description": "PNG width in pixels, 32 to 4000 (default 300). SVG scales without it"
},
"margin": {
"type": "integer",
"minimum": 0,
"maximum": 20,
"description": "Quiet zone in modules, default 4, which is what the QR standard requires"
},
"format": {
"type": "string",
"enum": [
"svg",
"png"
],
"description": "svg (default, free) or png (Pro)"
},
"out_path": {
"type": "string",
"description": "Name for the downloaded file, e.g. acme-code. SVG is returned inline when this is left out; a PNG always comes back as a download link valid for one hour"
},
"overwrite": {
"type": "boolean",
"description": "Replace a file of the same name already produced in this request (default false)"
}
},
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢invoice_payment_qr(invoice_id, amount, reference, iban, name, ...)
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.
输入模式
{
"type": "object",
"properties": {
"invoice_id": {
"type": "string",
"description": "Invoice number, for example INV-2026-0007. Read from the invoice server's store if it is present"
},
"amount": {
"type": "number",
"description": "Amount in EUR. Overrides the invoice total; required when there is no invoice to read"
},
"reference": {
"type": "string",
"description": "Payment text, up to 140 characters. Defaults to the invoice number"
},
"iban": {
"type": "string",
"description": "Override the IBAN in the shared business profile"
},
"name": {
"type": "string",
"description": "Override the beneficiary name in the shared business profile"
},
"error_correction": {
"type": "string",
"enum": [
"L",
"M",
"Q",
"H"
],
"description": "L 7%, M 15% (default), Q 25%, H 30% of the code recoverable when damaged"
},
"size": {
"type": "integer",
"description": "PNG width in pixels, 32 to 4000 (default 300). SVG scales without it"
},
"margin": {
"type": "integer",
"minimum": 0,
"maximum": 20,
"description": "Quiet zone in modules, default 4, which is what the QR standard requires"
},
"format": {
"type": "string",
"enum": [
"svg",
"png"
],
"description": "svg (default, free) or png (Pro)"
},
"out_path": {
"type": "string",
"description": "Name for the downloaded file, e.g. acme-code. SVG is returned inline when this is left out; a PNG always comes back as a download link valid for one hour"
},
"overwrite": {
"type": "boolean",
"description": "Replace a file of the same name already produced in this request (default false)"
}
},
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟡barcode_create(symbology, value, module_width, height, text, ...)
Call this tool to draw a linear barcode (code128, ean13, ean8, upca) as SVG, or PNG to out_path. A short EAN or UPC gets its check digit computed; a wrong one is refused, never redrawn. qr_create makes QR codes.
输入模式
{
"type": "object",
"properties": {
"symbology": {
"type": "string",
"enum": [
"code128",
"ean13",
"ean8",
"upca"
],
"description": "code128 for any printable ASCII, ean13 and ean8 for retail products, upca for North American retail"
},
"value": {
"type": "string",
"description": "The data to encode. Digits only for EAN and UPC"
},
"module_width": {
"type": "integer",
"minimum": 1,
"maximum": 20,
"description": "Width of the narrowest bar, in pixels or SVG units (default 2)"
},
"height": {
"type": "integer",
"minimum": 10,
"maximum": 1000,
"description": "Bar height in the same units (default 80)"
},
"text": {
"type": "boolean",
"description": "Print the digits under the bars (default true)"
},
"format": {
"type": "string",
"enum": [
"svg",
"png"
],
"description": "svg (default, free) or png (Pro)"
},
"out_path": {
"type": "string",
"description": "Name for the downloaded file, e.g. acme-code. SVG is returned inline when this is left out; a PNG always comes back as a download link valid for one hour"
},
"overwrite": {
"type": "boolean",
"description": "Replace a file of the same name already produced in this request (default false)"
}
},
"required": [
"symbology",
"value"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢barcode_batch(out_dir, items, symbology, stop_on_error, module_width, ...)
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.
输入模式
{
"type": "object",
"properties": {
"out_dir": {
"type": "string",
"description": "Ignored on this hosted endpoint: there are no directories, and every row comes back as its own download link"
},
"items": {
"type": "array",
"items": {
"type": "object",
"properties": {
"value": {
"type": "string",
"description": "The data to encode"
},
"symbology": {
"type": "string",
"enum": [
"code128",
"ean13",
"ean8",
"upca",
"qr"
],
"description": "Defaults to the call's symbology"
},
"filename": {
"type": "string",
"description": "File name without an extension. Defaults to the value, made safe"
}
},
"required": [
"value"
],
"additionalProperties": false
},
"description": "The rows to draw"
},
"symbology": {
"type": "string",
"enum": [
"code128",
"ean13",
"ean8",
"upca",
"qr"
],
"description": "Default symbology for rows that do not name one (default code128)"
},
"stop_on_error": {
"type": "boolean",
"description": "Stop at the first bad row instead of drawing the rest and reporting it (default false)"
},
"module_width": {
"type": "integer",
"minimum": 1,
"maximum": 20,
"description": "Width of the narrowest bar, in pixels or SVG units (default 2)"
},
"height": {
"type": "integer",
"minimum": 10,
"maximum": 1000,
"description": "Bar height in the same units (default 80)"
},
"text": {
"type": "boolean",
"description": "Print the digits under the bars (default true)"
},
"format": {
"type": "string",
"enum": [
"svg",
"png"
],
"description": "svg (default, free) or png (Pro)"
},
"out_path": {
"type": "string",
"description": "Name for the downloaded file, e.g. acme-code. SVG is returned inline when this is left out; a PNG always comes back as a download link valid for one hour"
},
"overwrite": {
"type": "boolean",
"description": "Replace a file of the same name already produced in this request (default false)"
}
},
"required": [
"items"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢code_list(limit, kind)
List the codes this server generated, newest first, with what each carried and where it went, plus how much of the free 20 a month is used. Filter by kind. It reads the register, not the files.
输入模式
{
"type": "object",
"properties": {
"limit": {
"type": "integer",
"minimum": 1,
"maximum": 200,
"description": "How many rows to show, newest first (default 20)"
},
"kind": {
"type": "string",
"description": "Only rows of this kind: text, wifi, vcard, sepa, invoice, barcode or batch"
}
},
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}社区
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