Investidor B3

Name: Investidor B3
Author: mcp-dir

by mcp-dirversion 0.1.0i★ –iRuns in the cloud

Registry nameio.github.mcp-dir/b3-mcp

Install

Overview

Description from the maker (original English)

Your consolidated B3 investment portfolio (the central depository): position by asset, net worth, tr

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs in the cloud
Transport: Streamable HTTP
Category: Other

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://api.mcp.ai/p_b3

Run this in your terminal

claude mcp add --transport http b3 https://api.mcp.ai/p_b3

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "b3": {
      "url": "https://api.mcp.ai/p_b3"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "b3": {
      "type": "http",
      "url": "https://api.mcp.ai/p_b3"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://api.mcp.ai/p_b3

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account mcp-dir, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
… Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Otheri

More stars than 0% of the other 32691 servers in this category
Published to the registry more recently than 12% of the other 32691 servers in this category
Basic checks equal to or better than 100% of the other 32691 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Investidor B3 safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.0) reached the registry 5 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, Dialyne

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Investidor B3

Consolidated B3 portfolio (Área do Investidor) for Claude, Cursor and AI agents

Your consolidated investment portfolio at B3 — Brazil's central securities depository, where custody from ALL of your brokers shows up in a single source. Holdings by asset, net worth and its evolution, trades, dividends and interest-on-equity (received and upcoming), movements and public offerings. Read-only, D-1 data, read from your own Área do Investidor account with your authorization.

🏛️ The source is B3 itself — the central depository, not an aggregator: whatever sits in your custody is what you get
🧾 Every broker in one portfolio — holdings by asset, net worth and net-worth evolution
💸 Dividends and interest-on-equity, both received and upcoming, with dates and amounts
📈 Trades and movements by period, plus the public offerings you took part in
📊 14 tools, all read-only (B3's D-1 data)
🔑 Connects with your Área do Investidor CPF and password (2FA code when B3 asks) — the platform reads YOUR data, with your consent
🏦 Pairs with the Banco MCP (Open Finance): banking and cards there, investment portfolio here
💬 Works with any MCP client: Claude Desktop, Cursor, VS Code, Cline, Continue

Versão em português · Full docs (PT-BR) · Agent skill

One-click install

Claude (Web and Desktop)

Anthropic unified MCP installation at claude.ai/customize/connectors. The same link works for Claude Web and Claude Desktop (just be logged in):

➕ Open in Claude and connect

Manual (if the deeplink does not open): claude.ai/customize/connectors → + → Add custom connector → paste Name Investidor B3 and URL https://api.mcp.ai/p_b3.

Cursor

➕ Install Investidor B3 in Cursor

VS Code (Copilot Chat)

➕ Install Investidor B3 in VS Code

ChatGPT, Manus, OpenClaw and 40+ other clients

Works with any MCP client that speaks MCP over HTTP. The server URL is always:

https://api.mcp.ai/p_b3

Per-client details: INSTALL.md.

Example prompts

What's my total net worth at B3 today?

Show my holdings by asset and each one's share of the portfolio How much did I get in dividends and interest-on-equity in the last 3 months? Any upcoming dividends in the next few weeks? List last month's trades and the institutions where I hold custody

14 tools available

Tool	Description
`b3_list_accounts`	Lista as contas da Área do Investidor B3 conectadas a este install — id, label.
`b3_get_patrimonio`	Patrimônio total consolidado na B3 (soma de todas as corretoras) numa data.
`b3_get_carteira`	Resumo da carteira agrupado por classe de ativo (ações, FIIs, renda fixa, etc.) com valor e percentual de cada grupo.
`b3_get_posicao`	Posição DETALHADA por ativo numa data: ticker (codigoNegociacao), quantidade, preço de fechamento, valor atualizado, ISIN, instituição.
`b3_list_ativos`	Drill-down nos ativos de UM tipo de produto (informe `codigoProduto`), com valor e percentual de cada ativo do grupo.
`b3_get_evolucao_patrimonial`	Série histórica de evolução do patrimônio na B3.
`b3_list_negociacoes`	Negociações (compras/vendas) num intervalo de datas.
`b3_list_movimentacao`	Movimentação de ativos (entradas/saídas: transferências, subscrições, bonificações, etc.) num intervalo.
`b3_list_proventos_a_receber`	Proventos provisionados a receber (dividendos/JCP futuros) numa data de referência.
`b3_list_proventos_recebidos`	Proventos já recebidos (dividendos/JCP pagos) num intervalo de datas.
`b3_list_ofertas_publicas`	Ofertas públicas (IPOs/subscrições) do investidor num intervalo.
`b3_get_perfil`	Cadastro/perfil do investidor (identidade da conta B3 conectada).
`b3_list_instituicoes`	Instituições (corretoras) vinculadas ao investidor na B3.
`b3_get_ultima_atualizacao`	Data/hora da última carga de dados da B3 (a base é D-1).

Details for each tool: docs/ferramentas.md (PT-BR)

How it works

1. Connect your Área do Investidor account (CPF + password; 2FA when B3 asks)

b3_get_patrimonio / b3_get_carteira / b3_get_posicao → consolidated portfolio snapshot
b3_list_proventos_recebidos / _a_receber → dividends and interest-on-equity
b3_list_negociacoes / b3_list_movimentacao → what came in and out over a period

B3 is the central securities depository: custody from all of your brokers is already consolidated there. That's why there's no "connect each broker" step — one connection covers the whole portfolio. Data is D-1 (previous close) and read-only — no tool places orders, transfers or changes anything.

Pairs with the Banco MCP (Open Finance) for the full picture: account and cards on one side, portfolio on the other.

Pricing

Plans start at a free tier. See docs/precos.md (PT-BR).

Privacy & data protection

Read-only, no tool changes data at the source.
Sub-processors: B3 S.A. — Brasil, Bolsa, Balcão, the LLM host you choose (Claude, ChatGPT, Cursor, your own agent). Full list in docs/privacidade-lgpd.md.
Data returned by the tools is sent to the LLM host you choose, a sub-processor outside our control. We recommend plans with training opt-out.

FAQ

Does this place buy or sell orders? No. All 14 tools are read-only. The MCP reads your custody at B3 — there's no broker or order routing in the path.

Do I have to connect each broker? No. B3 is the central depository: custody from all your brokers is already consolidated in Área do Investidor. One connection covers the whole portfolio.

Is the data real-time? No. Área do Investidor works with D-1 data (previous close). For live quotes, use a market-data source.

How does connecting with 2FA work? You provide CPF and password on the connect screen and, if B3 asks for a verification code, the dashboard prompts you for it right there and finishes the connection. The credential is encrypted and you can disconnect whenever you want at app.mcp.ai.

Is the server open source? The server is proprietary (hosted). This repository is the public wrapper with manifests, docs and skill, all MIT.

Support

📧 b3@mcp.ai
🐛 GitHub Issues
📄 docs/

License

MIT — see LICENSE. The MCP server at api.mcp.ai/p_b3 is proprietary (hosted); this repo (manifests, docs, skills) is MIT.

Investidor B3

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

Dialyne

README from the maker

Investidor B3

Consolidated B3 portfolio (Área do Investidor) for Claude, Cursor and AI agents

One-click install

Claude (Web and Desktop)

Cursor

VS Code (Copilot Chat)

ChatGPT, Manus, OpenClaw and 40+ other clients

Example prompts

14 tools available

How it works

Pricing

Privacy & data protection

FAQ

Support

License