Labelixa
Thermal label MCP server: render, validate, debug and convert ZPL, EPL, TSPL and CPCL labels.
Should I use this
Quality & Safety
Findings (5)
- HIGHTool poisoning patterns detected
- MEDIUMTool 'bulk_submit' description contains placeholder textin bulk_submit
- LOWTool 'language_detect' description lacks action verbin language_detect
- LOWTool 'convert_zpl_dpi' description lacks action verbin convert_zpl_dpi
- INFOTool description contains placeholder or incomplete textin bulk_submit
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"zpl": {
"command": "npx",
"args": [
"labelixa-mcp"
]
}
}
}Runnable packages
0.4.1stdioRemote endpoints
https://api.labelixa.com/mcpstreamable-httpWhat it can do
Tool inventory
Tools (21)
🟢zpl_preview(zpl, dpmm, width_in, height_in, index)
Render ZPL label code and return the label as a PNG image. Use this to SEE what ZPL output looks like — LLMs can write ZPL but cannot otherwise verify the visual result. One call renders one label (use `index` to pick a label from a multi-label stream).
Input Schema
{
"type": "object",
"properties": {
"zpl": {
"type": "string",
"description": "ZPL source (^XA...^XZ)"
},
"dpmm": {
"type": "integer",
"enum": [
6,
8,
12,
24
],
"default": 8,
"description": "Printer density (8 = 203 dpi)"
},
"width_in": {
"type": "number",
"default": 4,
"description": "Label width, inches"
},
"height_in": {
"type": "number",
"default": 6,
"description": "Label height, inches"
},
"index": {
"type": "integer",
"default": 0,
"description": "Label index in the stream"
}
},
"required": [
"zpl"
]
}🟢zpl_validate(zpl, dpmm, width_in, height_in)
Lint ZPL code and return structured diagnostics: unknown commands, missing ^FS, out-of-range parameters, fields outside the label boundary. Run this before zpl_preview when generating ZPL.
Input Schema
{
"type": "object",
"properties": {
"zpl": {
"type": "string",
"description": "ZPL source"
},
"dpmm": {
"type": "integer",
"default": 8,
"description": "Printer density (8 = 203 dpi). The boundary check measures against it — pass the real value."
},
"width_in": {
"type": "number",
"default": 4,
"description": "Label width in inches. Fields outside it are reported, so a wrong size makes that finding wrong."
},
"height_in": {
"type": "number",
"default": 6,
"description": "Label height in inches. Same as width_in: the boundary check depends on it."
}
},
"required": [
"zpl"
]
}Output Schema
{
"type": "object",
"properties": {
"diagnostics": {
"type": "array",
"items": {
"type": "object",
"properties": {
"code": {
"type": "string",
"description": "Stable diagnostic code, e.g. ZPL0002"
},
"severity": {
"type": "string",
"enum": [
"error",
"warning",
"info"
]
},
"message_key": {
"type": "string",
"description": "i18n key for the message"
},
"mesaj": {
"type": "string",
"description": "Human-readable message in the requested language"
},
"line": {
"type": "integer"
},
"col": {
"type": "integer"
},
"end_line": {
"type": "integer"
},
"end_col": {
"type": "integer"
}
},
"required": [
"code",
"severity",
"line",
"col"
]
}
},
"ozet": {
"type": "object",
"properties": {
"toplam": {
"type": "integer"
},
"error": {
"type": "integer"
},
"warning": {
"type": "integer"
},
"info": {
"type": "integer"
}
},
"required": [
"toplam",
"error",
"warning",
"info"
]
},
"alanlar": {
"type": "array",
"items": {
"type": "object",
"properties": {
"line": {
"type": "integer"
},
"x": {
"type": "integer"
},
"y": {
"type": "integer"
}
}
}
},
"rfid": {
"type": "array",
"items": {
"type": "object"
}
}
},
"required": [
"diagnostics",
"ozet"
]
}🟢zpl_command_help(command, locale)
Explain a single ZPL command: syntax, parameters with types/ranges/options, a fragment example and whether the Labelixa renderer draws it. Data comes from the same catalog that powers the public command reference pages.
Input Schema
{
"type": "object",
"properties": {
"command": {
"type": "string",
"description": "ZPL command code, e.g. FO, ^BC, ~DG"
},
"locale": {
"type": "string",
"enum": [
"en",
"tr",
"de"
],
"default": "en",
"description": "Language for the human-readable fields (name and descriptions). Command codes, syntax strings, examples and parameter names never change."
}
},
"required": [
"command"
]
}🟢barcode_png(type, data)
Generate a single barcode as a PNG image (Code 128, QR, DataMatrix, EAN-13, UPC-A, PDF417 and more). For a full label with text and layout, write ZPL and use zpl_preview instead.
Input Schema
{
"type": "object",
"properties": {
"type": {
"type": "string",
"default": "code128",
"description": "Symbology (code128, qr, datamatrix, ean13, upca, pdf417...)"
},
"data": {
"type": "string",
"description": "Data to encode"
}
},
"required": [
"data"
]
}🟢language_detect(code)
Detect which printer language raw label code is written in (ZPL, EPL, TSPL or CPCL). Heuristic: returns the language plus a confidence TIER (high/medium/low) and signal codes — not a probability.
Input Schema
{
"type": "object",
"properties": {
"code": {
"type": "string",
"description": "Raw label code to classify"
}
},
"required": [
"code"
]
}Output Schema
{
"type": "object",
"properties": {
"dil": {
"type": "string",
"description": "Detected printer language"
},
"guven": {
"type": "string",
"description": "Confidence level"
},
"karma": {
"type": "boolean",
"description": "True when the input mixes languages"
},
"puanlar": {
"type": "object",
"description": "Per-language score",
"additionalProperties": {
"type": "integer"
}
},
"kanitlar": {
"type": "array",
"items": {
"type": "object",
"properties": {
"kod": {
"type": "string"
},
"satir": {
"type": "integer"
}
}
}
}
},
"required": [
"dil",
"guven",
"puanlar"
]
}🟢epl_validate(epl)
Lint EPL/EPL2 label code and return positioned findings with severity as JSON. Checks the command set Labelixa implements from the EPL2 manual — a clean result is not a guarantee that a specific printer accepts the job. Run this before epl_preview; if you are not sure which language the code is, call language_detect first.
Input Schema
{
"type": "object",
"properties": {
"epl": {
"type": "string",
"description": "Raw EPL/EPL2 code"
}
},
"required": [
"epl"
]
}Output Schema
{
"type": "object",
"properties": {
"diagnostics": {
"type": "array",
"items": {
"type": "object",
"properties": {
"code": {
"type": "string",
"description": "Stable diagnostic code, e.g. ZPL0002"
},
"severity": {
"type": "string",
"enum": [
"error",
"warning",
"info"
]
},
"message_key": {
"type": "string",
"description": "i18n key for the message"
},
"mesaj": {
"type": "string",
"description": "Human-readable message in the requested language"
},
"line": {
"type": "integer"
},
"col": {
"type": "integer"
},
"end_line": {
"type": "integer"
},
"end_col": {
"type": "integer"
}
},
"required": [
"code",
"severity",
"line",
"col"
]
}
},
"ozet": {
"type": "object",
"properties": {
"toplam": {
"type": "integer"
},
"error": {
"type": "integer"
},
"warning": {
"type": "integer"
},
"info": {
"type": "integer"
}
},
"required": [
"toplam",
"error",
"warning",
"info"
]
}
},
"required": [
"diagnostics",
"ozet"
]
}🟢tspl_validate(tspl)
Lint TSPL/TSPL2 label code and return positioned findings with severity as JSON. Checks the command set Labelixa implements from the TSPL2 manual — a clean result is not a guarantee that a specific printer accepts the job. Run this before tspl_preview; if you are not sure which language the code is, call language_detect first.
Input Schema
{
"type": "object",
"properties": {
"tspl": {
"type": "string",
"description": "Raw TSPL/TSPL2 code"
}
},
"required": [
"tspl"
]
}Output Schema
{
"type": "object",
"properties": {
"diagnostics": {
"type": "array",
"items": {
"type": "object",
"properties": {
"code": {
"type": "string",
"description": "Stable diagnostic code, e.g. ZPL0002"
},
"severity": {
"type": "string",
"enum": [
"error",
"warning",
"info"
]
},
"message_key": {
"type": "string",
"description": "i18n key for the message"
},
"mesaj": {
"type": "string",
"description": "Human-readable message in the requested language"
},
"line": {
"type": "integer"
},
"col": {
"type": "integer"
},
"end_line": {
"type": "integer"
},
"end_col": {
"type": "integer"
}
},
"required": [
"code",
"severity",
"line",
"col"
]
}
},
"ozet": {
"type": "object",
"properties": {
"toplam": {
"type": "integer"
},
"error": {
"type": "integer"
},
"warning": {
"type": "integer"
},
"info": {
"type": "integer"
}
},
"required": [
"toplam",
"error",
"warning",
"info"
]
}
},
"required": [
"diagnostics",
"ozet"
]
}🟢cpcl_validate(cpcl)
Lint CPCL label code and return positioned findings with severity as JSON. Checks the command set Labelixa implements from the CPCL manual — a clean result is not a guarantee that a specific printer accepts the job. Run this before cpcl_preview; if you are not sure which language the code is, call language_detect first.
Input Schema
{
"type": "object",
"properties": {
"cpcl": {
"type": "string",
"description": "Raw CPCL code"
}
},
"required": [
"cpcl"
]
}Output Schema
{
"type": "object",
"properties": {
"diagnostics": {
"type": "array",
"items": {
"type": "object",
"properties": {
"code": {
"type": "string",
"description": "Stable diagnostic code, e.g. ZPL0002"
},
"severity": {
"type": "string",
"enum": [
"error",
"warning",
"info"
]
},
"message_key": {
"type": "string",
"description": "i18n key for the message"
},
"mesaj": {
"type": "string",
"description": "Human-readable message in the requested language"
},
"line": {
"type": "integer"
},
"col": {
"type": "integer"
},
"end_line": {
"type": "integer"
},
"end_col": {
"type": "integer"
}
},
"required": [
"code",
"severity",
"line",
"col"
]
}
},
"ozet": {
"type": "object",
"properties": {
"toplam": {
"type": "integer"
},
"error": {
"type": "integer"
},
"warning": {
"type": "integer"
},
"info": {
"type": "integer"
}
},
"required": [
"toplam",
"error",
"warning",
"info"
]
}
},
"required": [
"diagnostics",
"ozet"
]
}🟢explain_zpl(zpl, dpmm, width_in, height_in)
Full health report for a ZPL label: sectioned findings (syntax, size/DPI, orientation, barcodes, fonts, graphics memory, job behaviour) with an honest score — sections that cannot be assessed say so and are excluded from the score.
Input Schema
{
"type": "object",
"properties": {
"zpl": {
"type": "string",
"description": "Raw ZPL code"
},
"dpmm": {
"type": "integer",
"enum": [
6,
8,
12,
24
],
"default": 8,
"description": "Printer density (8 = 203 dpi). The size/DPI section is scored against it — pass the real value."
},
"width_in": {
"type": "number",
"default": 4,
"description": "Label width in inches; fields outside it are reported."
},
"height_in": {
"type": "number",
"default": 6,
"description": "Label height in inches; same role as width_in."
}
},
"required": [
"zpl"
]
}🟢convert_zpl_dpi(zpl, source_dpi, target_dpi)
Rescale ZPL between printer resolutions (203/300/600 DPI): coordinates, fonts, barcode module width and label size are scaled. Embedded ^GF/~DG image data is NOT scaled; the response says so instead of silently passing it through.
Input Schema
{
"type": "object",
"properties": {
"zpl": {
"type": "string",
"description": "Raw ZPL code"
},
"source_dpi": {
"type": "integer",
"enum": [
152,
203,
300,
600
],
"description": "Resolution the ZPL was written for, in DPI (not dpmm: 203 DPI = 8 dpmm)."
},
"target_dpi": {
"type": "integer",
"enum": [
152,
203,
300,
600
],
"description": "Resolution to rescale to, in DPI. Equal to source_dpi means no scaling."
}
},
"required": [
"zpl",
"source_dpi",
"target_dpi"
]
}🟢template_list(category, search)
List Labelixa's first-party label template catalog: id, English name, category, size/density and tags. Read-only product content (no tenant data). Fetch one with template_get; render its ZPL with zpl_preview.
Input Schema
{
"type": "object",
"properties": {
"category": {
"type": "string",
"enum": [
"kargo",
"urun",
"raf",
"palet",
"qr"
],
"description": "Filter by category"
},
"search": {
"type": "string",
"description": "Substring match on id/tags"
}
}
}🟢template_get(template_id)
Fetch one catalog template: metadata, preview image URL and — for non-premium templates — the ZPL source, ready for zpl_preview. Premium templates return metadata for everyone; their ZPL source requires an API key whose plan includes the premium-template feature (same rule as the website).
Input Schema
{
"type": "object",
"properties": {
"template_id": {
"type": "string",
"description": "Template id from template_list"
}
},
"required": [
"template_id"
]
}🟢epl_preview(epl, index)
Render EPL/EPL2 label code and return a PNG preview. The preview assumes 203 dpi and is an interpretation of the EPL2 manual covering a core command subset — no physical printer validation. `labels` in the response is the TOTAL number of labels the stream prints (a stream may contain several, each ended by `P`); pass `index` to render a different one.
Input Schema
{
"type": "object",
"properties": {
"epl": {
"type": "string",
"description": "Raw EPL/EPL2 code"
},
"index": {
"type": "integer",
"default": 0,
"description": "Label index in the stream"
}
},
"required": [
"epl"
]
}🟢tspl_preview(tspl, index)
Render TSPL/TSPL2 label code and return a PNG preview. The preview assumes 203 dpi and is an interpretation of the TSPL manual covering a core command subset — no physical printer validation. `labels` in the response is the TOTAL number of labels the stream prints (a stream may contain several, each ended by `PRINT`); pass `index` to render a different one.
Input Schema
{
"type": "object",
"properties": {
"tspl": {
"type": "string",
"description": "Raw TSPL/TSPL2 code"
},
"index": {
"type": "integer",
"default": 0,
"description": "Label index in the stream"
}
},
"required": [
"tspl"
]
}🟢cpcl_preview(cpcl, index)
Render CPCL label code and return a PNG preview. The preview assumes 203 dpi and is an interpretation of the CPCL manual covering a core command subset — no physical printer validation. `labels` in the response is the TOTAL number of labels the stream prints (a stream may contain several, each ended by `PRINT`); pass `index` to render a different one.
Input Schema
{
"type": "object",
"properties": {
"cpcl": {
"type": "string",
"description": "Raw CPCL code"
},
"index": {
"type": "integer",
"default": 0,
"description": "Label index in the stream"
}
},
"required": [
"cpcl"
]
}🟢image_to_zpl(image_base64, dpmm, wrap, dither)
Convert an image (PNG, JPEG, BMP or GIF, max 200 KB) to a ZPL ^GF graphic command. Returns the ZPL plus measured dimensions and the physical print size at the chosen density. PDF input is REST-only (/v1/graphics).
Input Schema
{
"type": "object",
"properties": {
"image_base64": {
"type": "string",
"description": "Base64-encoded image bytes"
},
"dpmm": {
"type": "integer",
"enum": [
6,
8,
12,
24
],
"default": 8,
"description": "Target printer density"
},
"wrap": {
"type": "boolean",
"default": false,
"description": "Wrap the ^GF in a printable ^XA...^XZ label with ^PW/^LL"
},
"dither": {
"type": "boolean",
"default": false,
"description": "Dither instead of hard threshold (photos)"
}
},
"required": [
"image_base64"
]
}🟢barcode_verify(image_base64)
Decode barcodes from a photo or scan of a PRINTED label (PNG, JPEG, BMP or GIF) and report what a software decoder reads back. Honest by design: 'read' does not guarantee every handheld scanner will read it, and 'not read' does not condemn the label (photo angle/focus matter) — the response says so.
Input Schema
{
"type": "object",
"properties": {
"image_base64": {
"type": "string",
"description": "Base64-encoded image bytes"
}
},
"required": [
"image_base64"
]
}🟢zpl_compatibility(zpl, model)
Compatibility RISK analysis of ZPL code against a specific printer model, given as manufacturer/model (e.g. 'zebra/zd421'). NOT an emulator and never says 'it works': reports the model's language posture with evidence level and size-rule findings.
Input Schema
{
"type": "object",
"properties": {
"zpl": {
"type": "string",
"description": "Raw ZPL code"
},
"model": {
"type": "string",
"description": "Printer model slug, manufacturer/model, e.g. zebra/zd421"
}
},
"required": [
"zpl",
"model"
]
}🟡bulk_submit(zpl, rows, output, dpmm, width_in, ...)
Submit a bulk label production job: one ZPL template with {{variable}} placeholders plus data rows (one object per label). Requires an API key whose plan includes bulk jobs. Quota is charged UPFRONT, one operation per row, and failed rows are not refunded; rows per job are capped by plan. Returns the job id — check bulk_status (small jobs usually finish within seconds).
Input Schema
{
"type": "object",
"properties": {
"zpl": {
"type": "string",
"description": "ZPL template with {{name}} placeholders"
},
"rows": {
"type": "array",
"items": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"description": "One object per label: placeholder name -> value"
},
"output": {
"type": "string",
"enum": [
"zpl",
"png",
"pdf"
],
"description": "Output format (default zpl)"
},
"dpmm": {
"type": "integer",
"enum": [
6,
8,
12,
24
],
"description": "Print density (default 8)"
},
"width_in": {
"type": "number",
"description": "Label width, inches"
},
"height_in": {
"type": "number",
"description": "Label height, inches"
}
},
"required": [
"zpl",
"rows"
]
}🟢bulk_status(job_id)
Status of one bulk job you own: state, attempt count and — when finished — the summary with produced count and per-row failures (row number + reason; failed rows never block the rest). Finished outputs stay downloadable for 7 days via the REST endpoint the response names.
Input Schema
{
"type": "object",
"properties": {
"job_id": {
"type": "string",
"description": "Job id from bulk_submit"
}
},
"required": [
"job_id"
]
}🟢bulk_list(limit)
List your recent bulk jobs (id, state, error class, timestamps), newest first. Useful to recover a lost job id; details via bulk_status.
Input Schema
{
"type": "object",
"properties": {
"limit": {
"type": "integer",
"description": "Max jobs to return (default 50)"
}
}
}Community
Evidence