Can I search for a customer by their NIF (VAT number) through my agent?

Yes. Use the `get_customer_by_vat` tool and provide the exact numeric NIF. Your agent will retrieve the certified customer record, ensuring you have the correct fiscal identifiers before generating any new document in Moloni.

How do I check the internal lines and tax breakdown of an invoice?

The `get_invoice` tool allows your agent to extract the explicit document body payload. You'll see the individual line items, unit prices, applied tax rates (IVA), and final document totals directly in your conversation.

Can my agent list all stock movements for a specific product?

Absolutely. Use the `list_product_stocks` tool with a Product ID. Your agent will report the chronological mutations in your warehouse, helping you audit how inventory levels have changed over time for that specific item.

Moloni (Cloud Invoicing & Fiscal Management) MCP Server for LangChain 20 tools — connect in under 2 minutes

Name: Moloni (Cloud Invoicing & Fiscal Management)
Availability: InStock
Author: Vinkius

python.langchain.com/docs/integrations/tools/mcp

Built by Vinkius GDPR 20 Tools Framework

LangChain is the leading Python framework for composable LLM applications. Connect Moloni (Cloud Invoicing & Fiscal Management) through Vinkius and LangChain agents can call every tool natively. combine them with retrievers, memory, and output parsers for sophisticated AI pipelines.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

python

import asyncio
from langchain_mcp_adapters.client import MultiServerMCPClient
from langchain_openai import ChatOpenAI
from langgraph.prebuilt import create_react_agent

async def main():
    # Your Vinkius token. get it at cloud.vinkius.com
    async with MultiServerMCPClient({
        "moloni-cloud-invoicing-fiscal-management": {
            "transport": "streamable_http",
            "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
        }
    }) as client:
        tools = client.get_tools()
        agent = create_react_agent(
            ChatOpenAI(model="gpt-4o"),
            tools,
        )
        response = await agent.ainvoke({
            "messages": [{
                "role": "user",
                "content": "Using Moloni (Cloud Invoicing & Fiscal Management), show me what tools are available.",
            }]
        })
        print(response["messages"][-1].content)

asyncio.run(main())

Moloni (Cloud Invoicing & Fiscal Management)

Fully ManagedVinkius Servers

60%Token savings

High SecurityEnterprise-grade

IAMAccess control

EU AI ActCompliant

DLPData protection

V8 IsolateSandboxed

Ed25519Audit chain

<40msKill switch

Stream every event to Splunk, Datadog, or your own webhook in real-time

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About Moloni (Cloud Invoicing & Fiscal Management) MCP Server

Connect your Moloni account to any AI agent and take full control of your certified cloud invoicing, commercial management, and fiscal compliance through natural conversation.

LangChain's ecosystem of 500+ components combines seamlessly with Moloni (Cloud Invoicing & Fiscal Management) through native MCP adapters. Connect 20 tools via Vinkius and use ReAct agents, Plan-and-Execute strategies, or custom agent architectures. with LangSmith tracing giving full visibility into every tool call, latency, and token cost.

What you can do

Customer CRM (VAT/NIF) — Search for registered customers by name or exact fiscal NIF and retrieve detailed profiles including billing addresses and legal dependencies directly from your agent
Invoice & Document Audit — List and retrieve detailed representations of certified invoices (FT), invoice-receipts (FR), and credit notes (NC) to monitor your sales and tax distributions securely
Product & Stock Tracking — List your complete catalog of articles and services, including base pricing and VAT configurations, and monitor real-time stock movements and warehousing logs natively
Commercial Estimations — Access and audit active quotes and proforma estimates to track pending client approvals and sales pipeline boundaries securely
Fiscal Configuration — Retrieve legal reference IDs for taxes, measurement units, and payment methods required for generating compliant mutations across Portuguese and Spanish jurisdictions
Customer Registration — Instantly create new client records with full fiscal metadata, including zip-coded addresses and country mappings, to prepare your environment for rapid invoicing
Metadata Inspection — Deep-dive into specific Document or Product IDs to retrieve precise JSON payloads and unit mapping constants instantly

The Moloni (Cloud Invoicing & Fiscal Management) MCP Server exposes 20 tools through the Vinkius. Connect it to LangChain in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect Moloni (Cloud Invoicing & Fiscal Management) to LangChain via MCP

Follow these steps to integrate the Moloni (Cloud Invoicing & Fiscal Management) MCP Server with LangChain.

Install dependencies

Run pip install langchain langchain-mcp-adapters langgraph langchain-openai

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Run the agent

Save the code and run python agent.py

Explore tools

The agent discovers 20 tools from Moloni (Cloud Invoicing & Fiscal Management) via MCP

Why Use LangChain with the Moloni (Cloud Invoicing & Fiscal Management) MCP Server

LangChain provides unique advantages when paired with Moloni (Cloud Invoicing & Fiscal Management) through the Model Context Protocol.

The largest ecosystem of integrations, chains, and agents. combine Moloni (Cloud Invoicing & Fiscal Management) MCP tools with 500+ LangChain components

Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step

LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging

Memory and conversation persistence let agents maintain context across Moloni (Cloud Invoicing & Fiscal Management) queries for multi-turn workflows

Moloni (Cloud Invoicing & Fiscal Management) + LangChain Use Cases

Practical scenarios where LangChain combined with the Moloni (Cloud Invoicing & Fiscal Management) MCP Server delivers measurable value.

RAG with live data: combine Moloni (Cloud Invoicing & Fiscal Management) tool results with vector store retrievals for answers grounded in both real-time and historical data

Autonomous research agents: LangChain agents query Moloni (Cloud Invoicing & Fiscal Management), synthesize findings, and generate comprehensive research reports

Multi-tool orchestration: chain Moloni (Cloud Invoicing & Fiscal Management) tools with web scrapers, databases, and calculators in a single agent run

Production monitoring: use LangSmith to trace every Moloni (Cloud Invoicing & Fiscal Management) tool call, measure latency, and optimize your agent's performance

Moloni (Cloud Invoicing & Fiscal Management) MCP Tools for LangChain (20)

These 20 tools become available when you connect Moloni (Cloud Invoicing & Fiscal Management) to LangChain via MCP:

create_customer

Registar formalmente novo cliente no Moloni

create_product

Criar registo de novo artigo faturável base

get_customer_by_vat

Pesquisar exato cliente pelo seu NIF fiscal

get_invoice

Obter detalhe intrínseco (items e IVAs) duma exata Fatura

get_product

Obter pormenores unitários e ID de taxas de um serviço

list_countries

Listar referências ISO IDs e jurisdições fiscais

list_credit_notes

Listar NCs legais (Notas de Crédito estornos)

list_customers

Listar todos os clientes registados na empresa Moloni

list_delivery_notes

Listar GTs puras (Guias de Transporte físicas)

list_estimates

Listar orçamentos simulados (Proformas/Orçamentos)

list_invoice_receipts

Listar FRV (Fatura-Recibo equivalentes portugueses)

list_invoices

Listar faturas simples já finalizadas ou abertas AT

list_measurement_units

Listar unidades métricas configuradas formalmente

list_payment_methods

Listar IDs de pagamento associados à AT

list_product_categories

Listar hierarquia de categorias guardando os produtos

list_product_stocks

Consultar movimentos brutos auditáveis do stock

list_products

Listar todos os artigos e stock de serviços Moloni

list_receipts

Listar RCs (Recibos líquidos de regularização liquidados)

list_taxes

Listar impostos e isenções IVA ativos

update_customer

Atualizar registo de dados fiscais num cliente existente

Example Prompts for Moloni (Cloud Invoicing & Fiscal Management) in LangChain

Ready-to-use prompts you can give your LangChain agent to start working with Moloni (Cloud Invoicing & Fiscal Management) immediately.

"Find the customer with NIF '123456789' in my Moloni account"

"List all pending estimates (budgets) from this month"

"Check the stock level for product 'Standard SaaS License' (ID: 13579)"

Troubleshooting Moloni (Cloud Invoicing & Fiscal Management) MCP Server with LangChain

Common issues when connecting Moloni (Cloud Invoicing & Fiscal Management) to LangChain through the Vinkius, and how to resolve them.

MultiServerMCPClient not found

Install: pip install langchain-mcp-adapters

Moloni (Cloud Invoicing & Fiscal Management) + LangChain FAQ

Common questions about integrating Moloni (Cloud Invoicing & Fiscal Management) MCP Server with LangChain.

How does LangChain connect to MCP servers?

Use langchain-mcp-adapters to create an MCP client. LangChain discovers all tools and wraps them as native LangChain tools compatible with any agent type.

Which LangChain agent types work with MCP?

All agent types including ReAct, OpenAI Functions, and custom agents work with MCP tools. The tools appear as standard LangChain tools after the adapter wraps them.