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Heu MCP

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HEU Legal e-signature MCP: manage HEU documents and PDFs, prompt signers, download PDFs.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to CursorAdd to VS Code
Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment
Target File:~/Library/Application Support/Claude/claude_desktop_config.json
claude_desktop_config.json
{
  "mcpServers": {
    "heu-mcp-2": {
      "command": "npx",
      "args": [
        "-y",
        "heu-mcp-2"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Install Directory Badge Claim listing Alternatives⚖️ More in Legal

Documentation Overview

HEU Legal MCP Server

PyPI Python License: MIT MCP Registry

MCP server (Model Context Protocol) che collega l'API HEU Legal a Claude e a qualsiasi client MCP. Gestisce l'intero ciclo di vita dei documenti con firma elettronica (valida in 180+ paesi) direttamente in conversazione: dalla creazione all'invio in firma, dal sollecito al download del fascicolo legale completo.


Cosa puoi fare

Voglio...Il server lo fa con...
📄 Vedere i miei documenti e templateslist_heu_documents, list_pdf_documents
✍️ Mandare un contratto in firma da un templatecreate_heu_document, create_pdf_document
🚀 Mandare in firma un PDF che ho sul computer, senza passare dalla piattaformacreate_pdf_document_from_upload
🤖 Far mappare i campi firma all'AI (analizza il PDF, posiziona i campi, invia)locate_pdf_text + create_pdf_document_from_upload
🔔 Sollecitare chi non ha ancora firmatoprompt_heu_document_signature, prompt_pdf_document_signature
👀 Far leggere un contratto all'AI (riassunti, clausole, confronti) senza scaricarloread_heu_document, read_pdf_document
🪪 Estrarre i dati delle parti (P.IVA, codice fiscale, SDI, PEC, indirizzi)extract_heu_document_parties, extract_pdf_document_parties
💾 Scaricare il PDF firmatodownload_heu_document_pdf, download_pdf_document
⚖️ Scaricare il fascicolo legale completo (documento + audit trail + artefatti FES)download_pdf_bundle, download_pdf_audit_trail
🧩 Creare/modificare templates PDF riutilizzabili via APIcreate_pdf_template, update_pdf_template, preview_pdf_template, delete_pdf_template
❌ Annullare una richiesta di firma inviata per errorecancel_pdf_document
🩺 Controllare che l'API sia raggiungibileget_heu_health

Due famiglie di oggetti:

  • Documenti nativi HEU — creati con l'editor in-app della piattaforma (ID a forma di UUID, es. 5135e7b2-196b-...).
  • PDF caricati — file PDF con firmatari e campi firma posizionati sopra (ID numerici, es. 68).

Requisiti

  • Python ≥ 3.10
  • API key HEU Legal — nella UI: Profile → API Keys → Generate API Key (richiede subscription Enterprise; massimo 2 chiavi attive)
  • Per i flussi da template: almeno un template creato sulla piattaforma (oppure crealo via API con create_pdf_template)

Installazione

Da PyPI:

Terminal
pip install heu-mcp

Da sorgenti:

bash
git clone https://github.com/heulegal/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):

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

Se installato da sorgenti con venv:

config.json
{
  "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)

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

Server remoto (multi-utente)

Oltre alla modalità locale (stdio) descritta sopra, il progetto include un server remoto che espone gli stessi 28 tool via HTTPS, così gli utenti si collegano senza installare nulla: inseriscono la propria API key HEU una volta, in un flusso OAuth.

Caratteristiche:

  • Transport Streamable HTTP, autenticazione OAuth 2.1 con PKCE S256, Dynamic Client Registration e Client ID Metadata Document
  • Multi-utente: ogni connessione usa la API key del proprio utente, conservata cifrata (Fernet) e mai in chiaro nel database
  • Refresh token con rotazione e revoca automatica della sessione in caso di riuso sospetto
  • I/O di rete asincrono e parsing PDF su threadpool: una richiesta lenta non blocca gli altri utenti

Avvio locale

Terminal
pip install -e ".[remote]"
export HEU_MCP_SECRET_KEY="$(python -c 'from cryptography.fernet import Fernet; print(Fernet.generate_key().decode())')"
export PUBLIC_URL="http://localhost:8080"
export HEU_MCP_DB="./heu-mcp.db"
heu-mcp-remote

Deploy su Fly.io

Terminal
fly launch --no-deploy
fly volumes create heu_data --size 1
fly secrets set HEU_MCP_SECRET_KEY="$(python -c 'from cryptography.fernet import Fernet; print(Fernet.generate_key().decode())')"
fly secrets set PUBLIC_URL="https://<nome-app>.fly.dev"
fly deploy

Variabili d'ambiente del server remoto

VariabileDescrizioneDefault
HEU_MCP_SECRET_KEYChiave Fernet per cifrare le API key degli utenti (richiesta)—
PUBLIC_URLURL pubblico del servizio, senza slash finale (richiesta in produzione)http://localhost:8080
MCP_PATHPath dell'endpoint MCP/mcp
HEU_MCP_DBPercorso del database SQLite/data/heu-mcp.db
ACCESS_TOKEN_TTL / REFRESH_TOKEN_TTLDurata token in secondi1 ora / 60 giorni

Endpoint esposti

EndpointScopo
/mcpEndpoint MCP (richiede bearer token)
/.well-known/oauth-protected-resourceMetadati risorsa protetta (RFC 9728)
/.well-known/oauth-authorization-serverMetadati authorization server (RFC 8414)
/register · /authorize · /tokenFlusso OAuth 2.1
/healthzLiveness probe

Variabili d'ambiente

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

Riferimento completo dei tool (28)

🩺 Health

ToolParametriCosa ritorna
get_heu_health—{ message: "ok", status: 200 } se l'API è operativa

📄 Documenti nativi HEU

ToolParametriCosa fa
list_heu_documentstype (document/template), sort (asc/desc), created_from + created_to (ISO 8601), have_editors_signed — tutti opzionaliLista documenti/template con stato, membri, firme. ⚠️ Le due date vanno passate sempre insieme, altrimenti l'API può restituire risultati incompleti
get_heu_documentdocument_idDettaglio completo: nome, stato (to_sign/in_progress/in_review/completed/signed), owner, editors, members con has_signed e signed_at, tags
list_heu_document_placeholdersdocument_idElenco delle chiavi placeholder sostituibili nel testo del template
create_heu_document ✋source_document_id, email_subject, email_text, email_to (lista), document_name, document_type, placeholders (mappa chiave→valore)Crea un documento da un template, sostituisce i placeholder e lo condivide via email ai destinatari
prompt_heu_document_signature ✋document_idInvia il sollecito di firma. Limite: 1 ogni 24h per documento (429 con Retry-After se superato)
read_heu_documentdocument_id, pages (es. "1-3", "5", "1,3,5-7"), layout, has_index, has_footerEstrae il testo del documento e lo restituisce in conversazione, senza salvare nulla su disco. Max 100 pagine se pages è omesso
extract_heu_document_partiesdocument_id, pages, include_textDati delle parti: combina i firmatari registrati con l'estrazione dal testo di codici fiscali, P.IVA, codice univoco SDI, email, PEC, luogo+data di nascita, indirizzi, CAP. Pattern ottimizzati per contratti italiani
download_heu_document_pdfdocument_id, layout (codici UI: 100, 200-204, 210-214, 220-224, 230-234), has_index, has_footer, output_pathGenera e salva il PDF su disco; ritorna il path

📎 PDF caricati

Read the full README on GitHub →

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Frequently Asked Questions about Heu MCP

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "heu-mcp": { "command": "npx", "args": ["-y", "heu-mcp"] } }

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Technical Specs & Signals

Category⚖️Legal
More technical detailsExpand ▾
TransportSTDIO
RuntimeNode.js
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27Quality signal: Emerging · 27/100How this signal is calculated ▾
Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership8/20
Documentation & tools11/30
Adoption & activity1/15
Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

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