How do I setup my Base64 Certificate and API credentials?

Log into your Efí account, go to **API > Applications**. Create an app to get the Client ID and Secret. Then generate a Production Certificate (`.p12`). Instead of uploading the file to Vinkius, use terminal command `base64 -i your_cert.p12` to convert it into a plaintext string, and paste that robust text directly into the MCP configuration.

Can I automatically verify if a customer paid a Pix charge just by chatting with my AI?

Yes! Provide the agent the exact transaction id (`txid`) of the generated Pix. The agent will query the `efi_get_pix_payment` tool and immediately tell you if the status is active, answered, or expired.

Does the integration support transferring money out (Cash-out)?

Yes. Using the `efi_send_pix` action, you can initiate outbound immediate payments requesting the agent to process a value directly to a receiver Pix key.

Can I query a history of paid bank slips (Boletos) at the end of the day or month?

Certainly. The `efi_list_boletos` and `efi_get_statement` tool allows you to perform large queries parsing begin/end dates to return summaries directly in your terminal.

Efí Pay (Gerencianet) MCP Server for LangChain 8 tools — connect in under 2 minutes

Name: Efí Pay (Gerencianet)
Availability: InStock
Author: Vinkius

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

Built by Vinkius GDPR 8 Tools Framework

LangChain is the leading Python framework for composable LLM applications. Connect Efí Pay (Gerencianet) 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({
        "efi-pay-gerencianet": {
            "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 Efí Pay (Gerencianet), show me what tools are available.",
            }]
        })
        print(response["messages"][-1].content)

asyncio.run(main())

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* 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 Efí Pay (Gerencianet) MCP Server

The Efí Pay MCP Server connects your AI agent directly to one of Brazil's largest payment and digital account platforms (formerly Gerencianet). Command your agent to handle invoicing seamlessly using natural language.

LangChain's ecosystem of 500+ components combines seamlessly with Efí Pay (Gerencianet) through native MCP adapters. Connect 8 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

Pix Management — Generate dynamic immediate charges (Pix Cob), check specific payment statuses in real-time, and send Pix directly to external keys.
Traditional Invoicing — Emit traditional Brazilian bank slips (Boletos) with specified expiration dates, item totals, and payer documents (CPF/CNPJ).
Account Overviews — Ask your agent to retrieve your current Efí account balance or pull a complete historical banking statement over a defined date range.

The Efí Pay (Gerencianet) MCP Server exposes 8 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 Efí Pay (Gerencianet) to LangChain via MCP

Follow these steps to integrate the Efí Pay (Gerencianet) 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 8 tools from Efí Pay (Gerencianet) via MCP

Why Use LangChain with the Efí Pay (Gerencianet) MCP Server

LangChain provides unique advantages when paired with Efí Pay (Gerencianet) through the Model Context Protocol.

The largest ecosystem of integrations, chains, and agents. combine Efí Pay (Gerencianet) 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 Efí Pay (Gerencianet) queries for multi-turn workflows

Efí Pay (Gerencianet) + LangChain Use Cases

Practical scenarios where LangChain combined with the Efí Pay (Gerencianet) MCP Server delivers measurable value.

RAG with live data: combine Efí Pay (Gerencianet) tool results with vector store retrievals for answers grounded in both real-time and historical data

Autonomous research agents: LangChain agents query Efí Pay (Gerencianet), synthesize findings, and generate comprehensive research reports

Multi-tool orchestration: chain Efí Pay (Gerencianet) tools with web scrapers, databases, and calculators in a single agent run

Production monitoring: use LangSmith to trace every Efí Pay (Gerencianet) tool call, measure latency, and optimize your agent's performance

Efí Pay (Gerencianet) MCP Tools for LangChain (8)

These 8 tools become available when you connect Efí Pay (Gerencianet) to LangChain via MCP:

efi_create_boleto

Gerar um banco slip tradicional brasileiro (Boleto)

efi_create_pix_charge

Emitir cobrança imediata via Pix (Cob)

efi_get_balance

Consultar o resuldado / Saldo atual da conta digital (Efí Pay)

efi_get_pix_payment

Consultar um único pagamento Pix recebido específico

efi_get_statement

Consultar o Resumo (Statement / Extrato) das movimentações da conta

efi_list_boletos

Listar todos os Boletos e transações emitidos em um range de datas

efi_list_pix_charges

Consultar cobranças Pix (Cob) recebidas ou geradas num intervalo

efi_send_pix

Enviar um Pix em tempo real para terceiros

Example Prompts for Efí Pay (Gerencianet) in LangChain

Ready-to-use prompts you can give your LangChain agent to start working with Efí Pay (Gerencianet) immediately.

"Generate a dynamic Pix charge of R$ 150.00 expiring in 3600 seconds, and link it to my external key myemail@store.com."

"Check the status of the Pix payment holding the txid 'abc123zxy456'."

"Pull a list of my generated Boletos since September 1st, showing me only the unpaid ones."

Troubleshooting Efí Pay (Gerencianet) MCP Server with LangChain

Common issues when connecting Efí Pay (Gerencianet) to LangChain through the Vinkius, and how to resolve them.

MultiServerMCPClient not found

Install: pip install langchain-mcp-adapters

Efí Pay (Gerencianet) + LangChain FAQ

Common questions about integrating Efí Pay (Gerencianet) 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.