Stark Bank MCP Server for LangChain 9 tools — connect in under 2 minutes
LangChain is the leading Python framework for composable LLM applications. Connect Stark Bank through the Vinkius and LangChain agents can call every tool natively — combine them with retrievers, memory, and output parsers for sophisticated AI pipelines.
ASK AI ABOUT THIS MCP SERVER
Vinkius supports streamable HTTP and SSE.
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({
"stark-bank": {
"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 Stark Bank, show me what tools are available.",
}]
})
print(response["messages"][-1].content)
asyncio.run(main())
* 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 Stark Bank MCP Server
The Stark Bank MCP Server brings highest-end Brazilian financial tech directly into your Agent's context. Engineered specifically for complex corporate maneuvers and heavy automations requiring zero filesystem intervention—authentication is fully handled via ECDSA public/private cryptography inside the MCP.
LangChain's ecosystem of 500+ components combines seamlessly with Stark Bank through native MCP adapters. Connect 9 tools via the 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
- Mass Corporate Payables (Transfers) — You can ask your chatbot to send Pix out to specific people, or execute TED transfers programmatically parsing bank codes and taxes.
- Asset Generation — Rapidly generate virtual Corporate Cards or Boletos targeting specific customer strings.
- Unmatched Oversight — Check precisely the atomic balance of your Stark accounts or extract statements and invoice status tracking in milliseconds.
The Stark Bank MCP Server exposes 9 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 Stark Bank to LangChain via MCP
Follow these steps to integrate the Stark Bank 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 9 tools from Stark Bank via MCP
Why Use LangChain with the Stark Bank MCP Server
LangChain provides unique advantages when paired with Stark Bank through the Model Context Protocol.
The largest ecosystem of integrations, chains, and agents — combine Stark Bank 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 Stark Bank queries for multi-turn workflows
Stark Bank + LangChain Use Cases
Practical scenarios where LangChain combined with the Stark Bank MCP Server delivers measurable value.
RAG with live data: combine Stark Bank tool results with vector store retrievals for answers grounded in both real-time and historical data
Autonomous research agents: LangChain agents query Stark Bank, synthesize findings, and generate comprehensive research reports
Multi-tool orchestration: chain Stark Bank tools with web scrapers, databases, and calculators in a single agent run
Production monitoring: use LangSmith to trace every Stark Bank tool call, measure latency, and optimize your agent's performance
Stark Bank MCP Tools for LangChain (9)
These 9 tools become available when you connect Stark Bank to LangChain via MCP:
stark_create_boleto
Efetuar a emissão de Lote de Boletos Bancários Oficiais (Stark Bank)
stark_create_corporate_card
Tecnologia Enterprise: Criar novo Cartão de Crédito Corporativo on-the-fly
stark_create_pix_charge
Criar uma Cobrança Pix dinâmica imediata (Stark Bank)
stark_create_transfer
INICIAR PAGAMENTOS: Emissão de TED ou Pix para fornecedores/funcionários
stark_get_balance
Consultar resgate atual monetário / total em caixa no banco (Balance)
stark_get_statement
Gerar statement cru detalhado de fluxo de caixa
stark_list_boletos
Listar progressão contábil e status dos Boletos
stark_list_pix_charges
Listar histórico das Cobranças Pix originadas
stark_list_transfers
Descobrir rastreio de pagamentos de saída finalizados (Transfers)
Example Prompts for Stark Bank in LangChain
Ready-to-use prompts you can give your LangChain agent to start working with Stark Bank immediately.
"Generate a dynamic Corporate Card on Stark Bank named 'Google Cloud Pay' for my team."
"Extract the detailed historical stark statements spanning from March 1st to March 15th to examine payroll expenditures."
"Create a Boleto for 500 BRL to CPF 000101111909. It must expire 10 days from today."
Troubleshooting Stark Bank MCP Server with LangChain
Common issues when connecting Stark Bank to LangChain through the Vinkius, and how to resolve them.
MultiServerMCPClient not found
pip install langchain-mcp-adaptersStark Bank + LangChain FAQ
Common questions about integrating Stark Bank MCP Server with LangChain.
How does LangChain connect to MCP servers?
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?
Can I trace MCP tool calls in LangSmith?
Connect Stark Bank with your favorite client
Step-by-step setup guides for every MCP-compatible client and framework:
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GitHub Copilot in VS Code with Agent mode and MCP support.
Purpose-built IDE for agentic AI coding workflows.
Autonomous AI coding agent that runs inside VS Code.
Anthropic's agentic CLI for terminal-first development.
Python SDK for building production-grade OpenAI agent workflows.
Google's framework for building production AI agents.
Type-safe agent development for Python with first-class MCP support.
TypeScript toolkit for building AI-powered web applications.
TypeScript-native agent framework for modern web stacks.
Python framework for orchestrating collaborative AI agent crews.
Leading Python framework for composable LLM applications.
Data-aware AI agent framework for structured and unstructured sources.
Microsoft's framework for multi-agent collaborative conversations.
Connect Stark Bank to LangChain
Get your token, paste the configuration, and start using 9 tools in under 2 minutes. No API key management needed.