# Investidor B3 Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## Investidor B3

Track your B3 investment portfolio, positions, dividends and trading history across all brokers

- Record: https://musedirectory.ai/connector/investidor-b3
- Category: Finance & Bills
- Developer: mcp.ai
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 304ms, checked 2026-09-28T08:46:07Z
- Endpoint: https://api.mcp.ai/p_b3
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-09-25T09:56:37Z)
- Source: Found in the official MCP Registry (io.github.mcp-dir/b3-mcp) https://registry.modelcontextprotocol.io/v0/servers?search=io.github.mcp-dir%2Fb3-mcp

Connects to B3 (Brazil's central securities depository) to show consolidated investment positions by asset class, net worth, detailed holdings, transaction history, dividends received and pending, and portfolio evolution over time.

Example request: "Show me my total portfolio value and how much I have in stocks versus real estate funds right now"

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Investidor B3 to help me. It is a free service with an MCP server at https://api.mcp.ai/p_b3. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- 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. Retorna { valor, 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. Agrupado por tipo de produto. Paginado.
- b3_list_ativos: Drill-down nos ativos de UM tipo de produto (informe `codigoProduto`), com valor e percentual de cada ativo do grupo. Para a posição COMPLETA de todos os ativos, use b3_get_posicao.
- b3_get_evolucao_patrimonial: Série histórica de evolução do patrimônio na B3.
- b3_list_negociacoes: Negociações (compras/vendas) num intervalo de datas. Paginado por `page`.
- b3_list_movimentacao: Movimentação de ativos (entradas/saídas: transferências, subscrições, bonificações, etc.) num intervalo. Paginado.
- 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. Paginado.
- b3_list_ofertas_publicas: Ofertas públicas (IPOs/subscrições) do investidor num intervalo. Paginado por `page`.
- 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). Use para saber quão fresca está a posição.
- show_version: Show the current MCP platform and adapter versions.
- report_bug: Report a bug, missing feature, or send feedback. Include the conversation array with recent messages for reproduction.
- connect: Returns connection status and URLs. When all providers are connected, returns authenticated:true and empty pending[]. When credentials are missing, returns connect_url for the toolkit and per-install URLs.
- toolkit_info: Returns the current toolkit state: installed MCPs, their connection status, the accounts connected to each one, and how many catalog tools each exposes.
- marketplace: The official mcp.ai marketplace — the in-platform catalog of every MCP/tool, AND the way to run them. Covers capability requests like "find an MCP that does X", "consulta um CPF", "is there a tool for Y". Core flow: action=search discovers MCPs by intent → describe returns one MC
- authenticate: MCP.AI for IDE agents (Cursor, etc.): log in in the browser, copy the access token. Best: add it to this server's config as a header `Authorization: Bearer <token>` for a permanent, non-expiring connection. Or paste it here for a session-only login: call with { token: "<jwt>" } a

Screening checks:
- MCP handshake: pass (Answered in 239ms)
- Domain against threat feeds (Cloudflare security DNS): pass (api.mcp.ai not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: pass (20 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (No concerns)