Can my agent search for customers using Brazilian documents like CPF or CNPJ?

Yes. The 'search_customers' tool performs iterative regex analysis on names and documents. You can provide a CPF or CNPJ string, and the agent will locate the exact match within your Conta Azul database.

How do I check the status of a specific product invoice (NF-e)?

Use the 'list_nfe' tool. Your agent will sweep governmental emission records and validate the approval status with SEFAZ, ensuring you have real-time visibility into your fiscal compliance.

Can I monitor recurring contracts via the agent?

Absolutely. The 'list_contracts' tool captures financial limits for monthly or annual agreements, allowing your agent to detail continuous links and track expiration dates without generating instant fiscal documents.

How do I check my available bank balance?

Use the 'list_bank_accounts' tool. Your agent will retrieve the real-time balance for all integrated accounts in your Conta Azul workspace.

Conta Azul MCP Server for LangChain 15 tools — connect in under 2 minutes

Name: Conta Azul
Availability: InStock
Author: Vinkius

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

Built by Vinkius GDPR 15 Tools Framework

LangChain is the leading Python framework for composable LLM applications. Connect Conta Azul 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({
        "conta-azul": {
            "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 Conta Azul, show me what tools are available.",
            }]
        })
        print(response["messages"][-1].content)

asyncio.run(main())

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 Conta Azul MCP Server

Connect your Conta Azul account to any AI agent and take full control of your Brazilian business ERP and financial management through natural conversation.

LangChain's ecosystem of 500+ components combines seamlessly with Conta Azul through native MCP adapters. Connect 15 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 Management — List and search for customers (PJ/PF), audit fiscal documents (CNPJ/CPF), and create new financial entities natively
Inventory & Services — Map physical products (SKU) and intangible services, retrieve pricing, units of measure, and create new billable components
Sales Monitoring — List continuous logs of confirmed sales, retrieve detailed accounting matrices for units, and verify invoice statuses
Recurrence Tracking — Audit financial contracts and automatic agreements to monitor monthly/annual technical debt and expiration dates
Fiscal Compliance (NF-e) — Retrieve governmental emissions records (NF-e) and validate SEFAZ approval statuses for product invoices
Financial Structure — Access hierarchical category trees (DRE) and map bank accounts to reconcile monetary positions and internal cash flow

The Conta Azul MCP Server exposes 15 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 Conta Azul to LangChain via MCP

Follow these steps to integrate the Conta Azul 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 15 tools from Conta Azul via MCP

Why Use LangChain with the Conta Azul MCP Server

LangChain provides unique advantages when paired with Conta Azul through the Model Context Protocol.

The largest ecosystem of integrations, chains, and agents. combine Conta Azul 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 Conta Azul queries for multi-turn workflows

Conta Azul + LangChain Use Cases

Practical scenarios where LangChain combined with the Conta Azul MCP Server delivers measurable value.

RAG with live data: combine Conta Azul tool results with vector store retrievals for answers grounded in both real-time and historical data

Autonomous research agents: LangChain agents query Conta Azul, synthesize findings, and generate comprehensive research reports

Multi-tool orchestration: chain Conta Azul tools with web scrapers, databases, and calculators in a single agent run

Production monitoring: use LangSmith to trace every Conta Azul tool call, measure latency, and optimize your agent's performance

Conta Azul MCP Tools for LangChain (15)

These 15 tools become available when you connect Conta Azul to LangChain via MCP:

create_customer

Injetar novo registro financeiro PF/PJ definindo estrutura formal dentro do ERP

create_product

Mapear bens tangíveis definindo novos componentes faturáveis em Real financeiro

create_service

Inserir prestação ativa intangível estritamente precificada na contabilidade

get_customer

Extrair perfil estático financeiro via UUID rastreando limites PF/PJ explícitos

get_product

Ler dados de um item físico individual incluindo limite e unidade de medida

get_sale

Visualizar blocos confirmados incluindo matrizes exatas contábeis da venda UUID

list_bank_accounts

Mapear bancos físicos conciliando integração extraindo posições monetárias

list_categories

g. Despesas, Receitas) que formam a espinha dorsal de DRE validada base ContaAzul. Determinar limites contábeis de Plano Analítico nativo classificando recursos

list_contracts

Pesquisar recorrências atestando acordos automáticos limitando vencimentos

list_customers

Listar base de clientes paginada extraindo entidades corporativas no ERP

list_nfe

Buscar listagem governamental acoplada de emissões NF (Notas de Produto)

list_products

Mapear itens físicos catalogados incluindo valores de SKU extraídos estaticamente

list_sales

Listar logs contínuos extraídos avaliando faturas pendentes emitidas no fluxo

list_services

Ler prestação categorizada cobrável na estrutura contábil faturada paginada

search_customers

Pesquisar perfis corporativos/fiscais comparando documentos restritos via CPF/CNPJ

Example Prompts for Conta Azul in LangChain

Ready-to-use prompts you can give your LangChain agent to start working with Conta Azul immediately.

"Search for customer with CNPJ '12.345.678/0001-90'"

"List the last 5 sales"

"Check the status of my NF-e emissions for this month"

Troubleshooting Conta Azul MCP Server with LangChain

Common issues when connecting Conta Azul to LangChain through the Vinkius, and how to resolve them.

MultiServerMCPClient not found

Install: pip install langchain-mcp-adapters

Conta Azul + LangChain FAQ

Common questions about integrating Conta Azul 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.