CVM Dados Abertos MCP Server for LangChainGive LangChain instant access to 6 tools to Get Dataset, Get Resource, List Datasets, and more

Name: CVM Dados Abertos
Price: 29 USD
Availability: InStock
Rating: 5.0 (1 reviews)
Author: Vinkius

GDPR Free for Subscribers

LangChain is the leading Python framework for composable LLM applications. Connect CVM Dados Abertos through 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 for LangChain

Open in ChatGPT Open in Claude Open in Perplexity

The CVM Dados Abertos MCP Server for LangChain is a standout in the Data Analytics category — giving your AI agent 6 tools to work with, ready to go from day one.

Built for AI Agents by Vinkius

Vinkius delivers Streamable HTTP and SSE to any MCP client

Claude

ChatGPT

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Gemini

Windsurf

VS Code

JetBrains

Vercel

+ other MCP clients

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({
        "cvm-dados-abertos": {
            "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 CVM Dados Abertos, 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 CVM Dados Abertos MCP Server

Connect your AI agent to the CVM (Comissão de Valores Mobiliários) Open Data portal and explore the Brazilian financial market through natural conversation.

LangChain's ecosystem of 500+ components combines seamlessly with CVM Dados Abertos through native MCP adapters. Connect 6 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

Dataset Exploration — List all available datasets or search for specific topics like 'investment funds' or 'listed companies'.
Deep Metadata Inspection — Fetch complete metadata for specific datasets, including update frequency, tags, and organizational ownership.
Resource Access — Retrieve direct links and metadata for specific data resources (CSV, XML, or PDF files) within the portal.
Organizational Mapping — List the CVM departments and thematic groups responsible for publishing specific sets of financial data.
Market Research — Quickly find registration data (fi-cad) or daily reports (infodiario) without navigating complex web directories.

The CVM Dados Abertos MCP Server exposes 6 tools through the Vinkius. Connect it to LangChain in under two minutes — credentials fully managed, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

All 6 CVM Dados Abertos tools available for LangChain

When LangChain connects to CVM Dados Abertos through Vinkius, your AI agent gets direct access to every tool listed below — spanning capital-markets, investment-funds, financial-reports, and more. Every call runs in a secure, isolated environment with full audit visibility. Beyond a simple connection, you get real-time monitoring of agent activity, enterprise governance, and optimized token usage.

get

Get dataset on CVM Dados Abertos

Get complete metadata for a specific dataset

get

Get resource on CVM Dados Abertos

Get metadata for a specific resource

list

List datasets on CVM Dados Abertos

List all datasets available on the CVM portal

list

List groups on CVM Dados Abertos

g., "Fundos de Investimento", "Companhias"). List thematic groups

list

List organizations on CVM Dados Abertos

g., CVM departments) that publish data on the portal. List organizations that publish data

Search datasets on CVM Dados Abertos

Search for datasets matching specific criteria

Connect CVM Dados Abertos to LangChain via MCP

Follow these steps to wire CVM Dados Abertos into LangChain. The entire setup takes under two minutes — your credentials stay safe behind Vinkius.

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 6 tools from CVM Dados Abertos via MCP

Why Use LangChain with the CVM Dados Abertos MCP Server

LangChain provides unique advantages when paired with CVM Dados Abertos through the Model Context Protocol.

The largest ecosystem of integrations, chains, and agents. combine CVM Dados Abertos 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 CVM Dados Abertos queries for multi-turn workflows

CVM Dados Abertos + LangChain Use Cases

Practical scenarios where LangChain combined with the CVM Dados Abertos MCP Server delivers measurable value.

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

Autonomous research agents: LangChain agents query CVM Dados Abertos, synthesize findings, and generate comprehensive research reports

Multi-tool orchestration: chain CVM Dados Abertos tools with web scrapers, databases, and calculators in a single agent run

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

Example Prompts for CVM Dados Abertos in LangChain

Ready-to-use prompts you can give your LangChain agent to start working with CVM Dados Abertos immediately.

"List all datasets available on the CVM portal."

"Search for datasets related to 'fundos'."

"Get the metadata for the dataset 'fi-cad'."

Troubleshooting CVM Dados Abertos MCP Server with LangChain

Common issues when connecting CVM Dados Abertos to LangChain through Vinkius, and how to resolve them.

MultiServerMCPClient not found

Install: pip install langchain-mcp-adapters

CVM Dados Abertos + LangChain FAQ

Common questions about integrating CVM Dados Abertos 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.