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Independent project, not affiliated with Anthropic

Heu Mcp

lucav21/heu-mcp
1authSTDIOregistry active
Summary

Connects Claude to the HEU Legal e-signature API so you can manage legally binding documents across 180+ countries without leaving the conversation. You get 18 tools covering the full v1 API: create native HEU documents or upload PDFs, prompt signers, extract structured party data (names, tax IDs, SDI codes), read document text for summarization or clause analysis, and download signed PDFs to disk. The read tools let Claude analyze contract contents directly while download saves the physical file. Requires an Enterprise subscription for API access and at least one template already set up in your HEU account. All destructive operations ask for explicit confirmation before executing.

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HEU Legal MCP Server

PyPI Python License: MIT

MCP server (Model Context Protocol) per integrare l'API HEU Legal con Claude (Claude Desktop, Claude Code, e altri client MCP). Gestisce documenti nativi HEU e PDF firmabili end-to-end via conversazione: creazione, condivisione per firma elettronica (valida in 180+ paesi), sollecito firmatari, download PDF.

Funzionalità

18 tool che coprono l'intera API HEU v1 più lettura contenuto e estrazione strutturata delle parti:

Documenti nativi HEU — list_heu_documents, get_heu_document, list_heu_document_placeholders, create_heu_document, prompt_heu_document_signature, extract_heu_document_parties, read_heu_document, download_heu_document_pdf

PDF caricati — list_pdf_documents, get_pdf_document, list_pdf_document_signers, list_pdf_document_signer_placeholders, list_pdf_document_placeholders, create_pdf_document, extract_pdf_document_parties, read_pdf_document, prompt_pdf_document_signature

Health — get_heu_health

Lettura del contenuto vs Download

Per ciascun tipo di documento esistono due modalità complementari:

ToolCosa faQuando usarlo
read_heu_document / read_pdf_documentEstrae il testo del PDF e lo restituisce direttamente nella conversazioneQuando vuoi che Claude legga il documento (riassumere, cercare clausole, confrontare)
download_heu_document_pdfSalva il PDF su disco e ritorna il pathQuando ti serve il file fisico (archiviarlo, allegarlo a un'email, stamparlo)

I tool di lettura accettano un parametro opzionale pages per leggere solo un range (es. "1-3", "5", "1,3,5-7"). Senza pages leggono fino a un massimo di 100 pagine.

Requisiti

  • Python ≥ 3.10
  • Una API key HEU Legal (Profile → API Keys nella UI HEU; richiede subscription Enterprise)
  • Almeno un template già creato sulla piattaforma HEU (documento nativo o PDF caricato)

Installazione

Da PyPI

pip install heu-mcp

Da sorgenti

git clone https://github.com/Lucav21/heu-mcp.git
cd heu-mcp
python3 -m venv venv
source venv/bin/activate
pip install -r requirements.txt

Configurazione

Claude Desktop

Modifica ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) o %APPDATA%\Claude\claude_desktop_config.json (Windows):

{
  "mcpServers": {
    "heu": {
      "command": "heu-mcp",
      "args": [],
      "env": {
        "HEU_API_KEY": "la_tua_api_key_qui"
      }
    }
  }
}

Se hai installato da sorgenti con venv:

{
  "mcpServers": {
    "heu": {
      "command": "/path/assoluto/heu-mcp/venv/bin/python",
      "args": ["/path/assoluto/heu-mcp/server.py"],
      "env": {
        "HEU_API_KEY": "la_tua_api_key_qui"
      }
    }
  }
}

Riavvia Claude Desktop dopo la modifica.

Claude Code (CLI)

claude mcp add heu heu-mcp -e HEU_API_KEY=la_tua_api_key_qui

Variabili d'ambiente

VariabileDescrizioneDefault
HEU_API_KEYAPI key HEU Legal (richiesto)—
HEU_BASE_URLURL base APIhttps://api.heulegal.com/v1
HEU_DOWNLOAD_DIRCartella dove salvare i PDF scaricati/tmp

Esempi d'uso

Dopo aver configurato il MCP, chiedi a Claude:

  • "Lista i miei template HEU"
  • "Mostrami i firmatari del PDF con id 26"
  • "Sollecita la firma del documento 15c587e0-1715-45c6-bf72-24bcb86c0f90"
  • "Riassumi il contratto con id ... e dimmi qual è la durata" (usa read_heu_document)
  • "Confronta i contratti X e Y, segnalami le differenze nelle clausole"
  • "Estrai i dati delle parti dal contratto ... — voglio nome, codice fiscale, P.IVA, codice univoco SDI" (usa extract_heu_document_parties)
  • "Scarica il PDF del documento X con layout 220 e includi indice"
  • "Crea un nuovo PDF firmabile dal template 56 per mario.rossi@example.com"

Note operative

  • I tool che creano/inviano (create_*, prompt_*) chiedono sempre conferma esplicita all'utente prima dell'esecuzione.
  • Rate limit dell'API: 300 richieste / 5 minuti. Gli header X-RateLimit-* sono restituiti nelle risposte.
  • prompt_*_signature ha un limite di 1 sollecito ogni 24h per documento (HTTP 429 con Retry-After).
  • download_heu_document_pdf salva il PDF in HEU_DOWNLOAD_DIR e restituisce il path: il binario non passa nel canale stdio.
  • Per create_pdf_document con signature_type=fea serve avere credito FEA sufficiente per tutti i firmatari (altrimenti HTTP 422).

Sicurezza

  • Le API key non sono mai loggate.
  • L'API key è letta solo da variabile d'ambiente: non viene mai scritta nel codice o nelle risposte.
  • Il binario PDF è salvato sul filesystem locale, non viene trasmesso via canale MCP.

Sviluppo

git clone https://github.com/Lucav21/heu-mcp.git
cd heu-mcp
python3 -m venv venv
source venv/bin/activate
pip install -e .

# Avvio manuale per debug
HEU_API_KEY=... python server.py

Licenza

MIT — vedi LICENSE.

Link

  • HEU Legal
  • Documentazione API HEU
  • Model Context Protocol
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Configuration

HEU_API_KEY*secret

HEU Legal API key (Profile > API Keys, Enterprise plan required)

HEU_BASE_URL

API base URL. Default: https://api.heulegal.com/v1

HEU_DOWNLOAD_DIR

Directory where downloaded PDFs are saved. Default: /tmp

Categories
AI & LLM Tools
Registryactive
Packageheu-mcp
TransportSTDIO
AuthRequired
UpdatedMay 5, 2026
View on GitHub

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