Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Thermal label MCP server: render, validate, debug and convert ZPL, EPL, TSPL and CPCL labels.
These three are never merged into one score: opinions, measurements and popularity are different things.
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
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Works in Claude on the web, desktop and mobile:
https://api.labelixa.com/mcpOpen Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json
{
"mcpServers": {
"zpl": {
"command": "npx",
"args": [
"-y",
"labelixa-mcp"
]
}
}
}Run this in your terminal
claude mcp add --transport http zpl https://api.labelixa.com/mcpclaude mcp add zpl -- npx -y labelixa-mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"zpl": {
"url": "https://api.labelixa.com/mcp"
}
}
}Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"zpl": {
"command": "npx",
"args": [
"-y",
"labelixa-mcp"
]
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Paste into .vscode/mcp.json in your project
{
"servers": {
"zpl": {
"type": "http",
"url": "https://api.labelixa.com/mcp"
}
}
}Paste into .vscode/mcp.json in your project
{
"servers": {
"zpl": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"labelixa-mcp"
]
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
ChatGPT connects only to servers on the internet:
https://api.labelixa.com/mcpMenu names can differ slightly by plan and over time.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
Tool names and descriptions exactly as the server reported them on Nov 6, 2026. The maker wrote them, not us; we show them as plain text.
zpl_previewRender 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). The result also carries an
zpl_validatePass/fail lint for ZPL — machine-readable diagnostics with line/column, code and severity: unknown commands, missing ^FS, out-of-range parameters, fields outside the label. Fast; run it before zpl_preview whenever you generate or edit ZPL. For a human-readable report with a score
zpl_command_helpExplain 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.
barcode_pngGenerate 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.
language_detectDetect 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.
epl_validateLint 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 langu
tspl_validateLint 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 l
cpcl_validateLint 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
explain_zplHuman-readable health REPORT for a finished ZPL label, with a 0-100 score: sectioned findings (syntax, size/DPI, orientation, barcodes, fonts, graphics memory, job behaviour); sections that cannot be assessed say so and are excluded from the score. Use it to review or explain a l
convert_zpl_dpiRescale 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.
template_listList 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.
template_getFetch 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
save_labelSave a ZPL label to a Labelixa account so it can be edited, versioned and printed later. With an API key the label is saved immediately and the saved label id is returned. Without a key the label is held for 24 hours and a one-time link is returned: the user opens it, signs in (f
epl_previewRender 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 con
tspl_previewRender 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 c
cpcl_previewRender 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
image_to_zplConvert an image (PNG, JPEG, BMP, GIF or SVG, max 200 KB) to a ZPL ^GF graphic command. SVG is rasterised at the chosen density from its declared size (mm/in honoured); SVGs with external references or a DTD are rejected. Returns the ZPL plus measured dimensions and the physical
barcode_verifyDecode 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) — t
zpl_compatibilityCompatibility 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.
bulk_submitSubmit 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
bulk_statusStatus 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.
bulk_listList your recent bulk jobs (id, state, error class, timestamps), newest first. Useful to recover a lost job id; details via bulk_status.
printer_language_to_zplConvert a SATO SBPL, Honeywell (Datamax) DPL or Honeywell (Intermec) IPL label stream to ZPL, so it can be checked with zpl_validate and rendered with zpl_preview. You must name the source language: language_detect does not recognise these three. Real control characters and the m
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026
The registry name was verified against the domain labelixa.com (the registry checks domain ownership)
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Read 23 tool descriptions and found no hidden instructions to the AI
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
The registry does not list a required key, though some servers ask you to sign in on first use.
Either way works: install it on your computer or connect to the cloud version.
The GitHub repo last changed –, and the latest version (0.5.2) reached the registry 6 days ago.
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
In the same category: Spec Driven Development, Remote Desktop Commander, SuperCollider
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
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Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
Labelixa is an MCP (Model Context Protocol) server and API platform for thermal label development. It gives AI assistants and developer tools the ability to render, validate, debug, inspect and convert thermal printer labels — ZPL, EPL, TSPL and CPCL — through MCP.
There are two ways to connect:
| Remote server (recommended) | This npm package | |
|---|---|---|
| Endpoint | https://api.labelixa.com/mcp | local process over stdio |
| Tool set | full set: rendering, validation, debugging, conversion, barcode analysis, printer compatibility, templates, bulk jobs | core subset (table below); each tool calls the Labelixa REST API |
| Install | nothing to install | npx -y labelixa-mcp or npm install -g labelixa-mcp |
| Authentication | optional lbx_ API key | optional lbx_ API key |
The live tool list of the remote server is at labelixa.com/mcp.
Transport: Streamable HTTP, stateless JSON-RPC over POST. Anonymous use is free and rate-limited per IP; an API key uses the account's own quota. Keys: labelixa.com.
Claude Code:
claude mcp add --transport http labelixa https://api.labelixa.com/mcp
With an API key:
claude mcp add --transport http labelixa https://api.labelixa.com/mcp \
--header "Authorization: Bearer lbx_..."
Generic MCP client configuration (Claude Desktop, Cursor and other clients that accept a url entry):
{
"mcpServers": { "labelixa": { "url": "https://api.labelixa.com/mcp", "headers": {"Authorization": "Bearer lbx_..."} } } }
Drop the headers block for anonymous use.
npm install -g labelixa-mcp
Or skip installing and run it with npx straight from your MCP client config:
{
"mcpServers": { "labelixa": { "command": "npx", "args": ["-y", "labelixa-mcp"], "env": {"LABELIXA_API_KEY": "lbx_..."} } } }
Environment variables:
LABELIXA_API_KEY — optional lbx_ API key. Without it the anonymous quota applies.LABELIXA_BASE_URL — optional; defaults to https://api.labelixa.com.Requests never follow redirects, so a server cannot forward your key to another host. Numeric inputs are checked before a request is made: dpmm is 6, 8, 12 or 24, label sides are finite, above 0 and at most 15 inches, and DPI values are 152, 203, 300 or 600.
| Tool | What it does |
|---|---|
zpl_preview | Renders ZPL to a PNG image for inspection. Server-side render — not a guarantee of how a specific physical printer will output the label. |
zpl_validate | Lints ZPL and returns the structured diagnostics report (unknown commands, parameter ranges, layout overflow) as JSON. Pass the real label size — checks depend on it. |
barcode_generate | Generates a standalone barcode (SVG or PNG): code128, code39, ean13, upca, upce, itf14, msi, qrcode, datamatrix, pdf417. |
language_detect | Detects the printer language of raw label code (ZPL/EPL/TSPL/CPCL). Heuristic — returns a confidence tier, not a probability. |
epl_validate | Lints EPL/EPL2 code; positioned findings with severity, as JSON. |
tspl_validate | Lints TSPL/TSPL2 code; positioned findings with severity, as JSON. |
cpcl_validate | Lints CPCL code; positioned findings with severity, as JSON. |
zpl_compatibility | Compatibility RISK analysis of ZPL against a printer model. Not an emulator — reports language posture with evidence level; never says "it works". |
zpl_command_help | Looks up one ZPL command in the maintained catalog: name, syntax, parameters and whether the preview engine actually renders it — printer-side commands are marked as not rendered. Optional locale (en default, tr, de) translates the name and descriptions only; command codes, syntax strings, examples and parameter names are protocol and never change. |
convert_zpl_dpi | Rescales ZPL coordinates between printer resolutions (203/300/600 dpi). Embedded ^GF/~DG bitmaps are NOT rescaled — a warnings block precedes the output when present. |
explain_zpl | Full sectioned health report (syntax, size/DPI, orientation, barcodes, fonts, memory) with an honest score — sections it cannot assess say "not assessed" instead of counting. |
EPL, TSPL and CPCL previews, label templates, bulk generation, image-to-ZPL conversion, SBPL / DPL / IPL to ZPL conversion (printer_language_to_zpl) and barcode reading from photos are on the remote server only.
com.labelixa/zpl (remote server + this npm package).labelixa/zpl. Smithery routes calls through its own gateway; the canonical endpoint is https://api.labelixa.com/mcp.Retry-After rather than a made-up delay.zpl_preview is a render, not a print: physical output depends on the printer, media and darkness settings.Source of this package: github.com/Labelixa/labelixa-mcp. Docs: labelixa.com/docs/api. License: MIT.