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PopNx MCPMCP servers for people who use AI · explained in plain words

LayerOne (DocX + Sign)

by GOLayeroneversion 1.0.0i★ –iRuns on your computer
Registry nameio.github.GOLayerone/layerone

Install

Overview

Description from the maker (original English)

MCP server for LayerOne DocX (documents & Factur-X) and Sign (e-signature) APIs.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Runs on your computer
  • Transport: stdio
  • Category: Other
  • You need to fill in: DOCX_API_KEY, SIGN_API_KEY

Install

Pick the AI app you use, then copy the settings.

Before you install

  • Basic checks: 1 of 1 passed
  • Runs on your computer with your user’s permissions (files, network, apps).
  • You fill in yourself: DOCX_API_KEY, SIGN_API_KEY

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

  • npmNode.js installed (for the npx command)

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "layerone": {
      "command": "npx",
      "args": [
        "-y",
        "layerone-mcp"
      ],
      "env": {
        "DOCX_API_KEY": "your-value",
        "SIGN_API_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add layerone --env DOCX_API_KEY=your-value --env SIGN_API_KEY=your-value -- npx -y layerone-mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "layerone": {
      "command": "npx",
      "args": [
        "-y",
        "layerone-mcp"
      ],
      "env": {
        "DOCX_API_KEY": "your-value",
        "SIGN_API_KEY": "your-value"
      }
    }
  }
}

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.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "layerone": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "layerone-mcp"
      ],
      "env": {
        "DOCX_API_KEY": "your-value",
        "SIGN_API_KEY": "your-value"
      }
    }
  }
}

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.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

  • DOCX_API_KEY secret required env
    DocX API key (documents, PDF, Factur-X). Generate at https://dev.layerone.fr
  • SIGN_API_KEY secret required env
    Sign API key (eIDAS/PAdES e-signature). Generate at https://dev.layerone.fr

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

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 6, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account GOLayerone, which owns the repo

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • – Not applicable

    Endpoint responds

    This one runs on your computer; there is no internet endpoint

  • – Not applicable

    Sign-in with OAuth

    Runs on your computer and uses local settings instead

  • … Not checked yet

    No hidden instructions in tool descriptions

    Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Otheri

  • More stars than 0% of the other 32461 servers in this category
  • Published to the registry more recently than 13% of the other 32461 servers in this category
  • Basic checks equal to or better than 100% of the other 32461 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is LayerOne (DocX + Sign) safe?

It passed 1 of 1 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.

What keys or codes does it need?

You need to fill in: DOCX_API_KEY, SIGN_API_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.0) reached the registry 5 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, dotnet-mcp

Alternatives

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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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README from the maker

Open the README

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.

LayerOne MCP — DocX + Sign

Serveur MCP (Model Context Protocol) qui expose les API DocX et Sign de LayerOne directement aux agents IA (Claude Desktop, ChatGPT, Cursor, Windsurf, etc.).

Une fois branché, votre assistant IA peut, en langage naturel :

  • DocX — générer des documents (PDF / DOCX), des factures électroniques Factur-X (réforme 2026), déposer / mettre à jour / télécharger des modèles Word, gérer leur historique de versions, et consulter le quota d'usage.
  • Sign — envoyer un PDF à la signature électronique eIDAS / PAdES, suivre son statut, vérifier l'identité du signataire par SMS (OTP), télécharger le document signé, récupérer le certificat de preuve et valider l'intégrité cryptographique de la signature.

Installation

Le serveur se lance via npx — aucune installation manuelle requise. Ajoutez le bloc ci-dessous à la configuration MCP de votre client, en renseignant vos deux clés API.

Claude Desktop

Fichier claude_desktop_config.json :

{

"mcpServers": { "layerone": { "command": "npx", "args": ["-y", "layerone-mcp"], "env": { "DOCX_API_KEY": "votre_cle_docx", "SIGN_API_KEY": "votre_cle_sign" } } } }

Cursor

Fichier ~/.cursor/mcp.json (ou réglages MCP du projet) — même format :

{

"mcpServers": { "layerone": { "command": "npx", "args": ["-y", "layerone-mcp"], "env": { "DOCX_API_KEY": "votre_cle_docx", "SIGN_API_KEY": "votre_cle_sign" } } } }

ChatGPT / autres clients compatibles MCP

La plupart des clients MCP acceptent la même structure (command = npx, args = ["-y", "layerone-mcp"], env = vos deux clés). Reportez-vous à la documentation MCP de votre client pour l'emplacement exact du fichier de configuration.


Obtenir les clés API

Créez un compte gratuit sur https://dev.layerone.fr, puis générez vos clés dans l'onglet « Clés API » :

  • une clé DocX → variable d'environnement DOCX_API_KEY ;
  • une clé Sign → variable d'environnement SIGN_API_KEY.

Le compte gratuit offre 20 documents DocX et 10 signatures Sign par mois.

Les clés ne sont jamais écrites en dur dans le code : elles sont lues uniquement

depuis les variables d'environnement passées par votre client MCP.


Outils exposés

DocX (https://docx.layerone.fr)
OutilDescriptionEndpoint
docx_render_facturxGénérer une facture Factur-X (PDF/A-3)POST /render-facturx
docx_render_documentGénérer un document PDF ou DOCXPOST /render-document
docx_list_templatesLister / filtrer les modèlesGET /client/templates
docx_upload_templateDéposer un modèle WordPOST /client/templates
docx_update_templateMettre à jour un modèle (archive l'ancien)PUT /client/templates/{id}
docx_download_templateTélécharger un modèleGET /client/templates/{id}
docx_delete_templateSupprimer un modèleDELETE /client/templates/{id}
docx_list_template_versionsLister les versions archivéesGET /client/templates/{id}/versions
docx_download_template_versionTélécharger une version archivéeGET /client/templates/{id}/versions/{version_id}
docx_restore_template_versionRestaurer une version archivéePOST /client/templates/{id}/restore/{version_id}
docx_get_usage_statsConsulter le quota et l'usageGET /usage-stats
Sign (https://sign.layerone.fr)
OutilDescriptionEndpoint
sign_send_for_signatureEnvoyer un PDF à signerPOST /v1/documents/send
sign_detect_fieldsDétecter les champs de signature ([[...]])POST /v1/documents/detect-fields
sign_get_document_statusConsulter le statut d'une signatureGET /v1/documents/{id}
sign_download_signed_documentTélécharger le PDF signéGET /v1/documents/{id}/download
sign_send_otpEnvoyer un code OTP par SMSPOST /v1/otp/request
sign_verify_otpVérifier le code OTPPOST /v1/otp/verify
sign_validate_signatureVérifier l'intégrité de la signatureGET /v1/documents/{id}/validate
sign_get_audit_certificateRécupérer le certificat de preuveGET /v1/documents/{id}/audit
sign_cancel_documentAnnuler une demande de signatureDELETE /v1/documents/{id}

Fichiers : les modèles et PDF sont fournis aux outils encodés en base64

(template_base64, pdf_base64). Pour les téléchargements, le serveur renvoie un

résumé (taille + aperçu base64 tronqué) plutôt que le binaire complet, afin de ne

pas saturer la conversation.


Développement local

cd integrations/mcp

npm install npm run build # compile src/ → dist/ DOCX_API_KEY=... SIGN_API_KEY=... node dist/index.js

Le serveur communique sur stdio (entrée/sortie standard) selon le protocole MCP.


Publication

  • npm : publication automatique avec provenance via .github/workflows/publish.yml (déclenché par une release GitHub).
  • MCP Registry : le manifeste server.json (champ name io.github.GOLayerone/layerone, identique au mcpName de package.json) permet la publication au registre officiel via l'outil mcp-publisher.

Licence

MIT — © LayerOne.

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