MCP.Market

Investidor B3 MCP server

online · 100% uptime
by mcp-dir·io.github.mcp-dir/b3-mcp·v0.1.0
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Your consolidated B3 investment portfolio (the central depository): position by asset, net worth, tr

A88/100grade A
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Safety scan
A88/100

full report

Adoption
New

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Investidor B3 tools (20)

write = sends, deletes, buys or posts
  • authenticateFree

    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>" } after the user pastes, or with no args to get the link.

  • b3_get_carteiraFree

    Resumo da carteira agrupado por classe de ativo (ações, FIIs, renda fixa, etc.) com valor e percentual de cada grupo.

  • b3_get_evolucao_patrimonialFree

    Série histórica de evolução do patrimônio na B3.

  • b3_get_patrimonioFree

    Patrimônio total consolidado na B3 (soma de todas as corretoras) numa data. Retorna { valor, data }.

  • b3_get_perfilFree

    Cadastro/perfil do investidor (identidade da conta B3 conectada).

  • b3_get_posicaoFree

    Posição DETALHADA por ativo numa data: ticker (codigoNegociacao), quantidade, preço de fechamento, valor atualizado, ISIN, instituição. Agrupado por tipo de produto. Paginado.

  • b3_get_ultima_atualizacaoFree

    Data/hora da última carga de dados da B3 (a base é D-1). Use para saber quão fresca está a posição.

  • b3_list_accountsFree

    Lista as contas da Área do Investidor B3 conectadas a este install — id, label.

  • b3_list_ativosFree

    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_list_instituicoesFree

    Instituições (corretoras) vinculadas ao investidor na B3.

  • b3_list_movimentacaoFree

    Movimentação de ativos (entradas/saídas: transferências, subscrições, bonificações, etc.) num intervalo. Paginado.

  • b3_list_negociacoesFree

    Negociações (compras/vendas) num intervalo de datas. Paginado por `page`.

  • b3_list_ofertas_publicasFree

    Ofertas públicas (IPOs/subscrições) do investidor num intervalo. Paginado por `page`.

  • b3_list_proventos_a_receberFree

    Proventos provisionados a receber (dividendos/JCP futuros) numa data de referência.

  • b3_list_proventos_recebidosFree

    Proventos já recebidos (dividendos/JCP pagos) num intervalo de datas. Paginado.

  • connectFree

    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.

  • marketplaceFree

    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 MCP's full profile (every tool with its id + params, pricing, auth) so you pick the right tool_id → invoke RUNS that tool. KEY: invoke works even when the MCP is NOT installed — it runs the tool pontualmente (one-off), without adding the MCP to the toolkit and without bloating the tool list. If the MCP needs a credential/login, invoke returns a connect link; if it is paid and the wallet is empty, invoke returns a checkout/top-up link (the user opens it, then you retry). Use install only to make an MCP PERMANENT in the active toolkit (its tools then show up natively in future sessions); prefer invoke for a single/occasional use. list_tools lists what is callable right now. subscribe/cancel handle per-MCP billing; report_bug sends feedback; request_mcp asks us to build a NEW MCP when nothing fits. Search/describe flag installed_in_toolkit vs installed_in_workspace. Writes (install/uninstall/subscribe/cancel and the one-off install behind invoke) require workspace owner/admin. It also carries the mcp.ai PROMPT LIBRARY, which is about ready-made prompt TEXT rather than MCPs: search_prompts finds one, get_prompt returns its full text with {{variables}} filled, and publish_prompt saves a prompt and returns a shareable mcp.ai/p/<slug> link that opens without login.

  • report_bugFree

    Report a bug, missing feature, or send feedback. Include the conversation array with recent messages for reproduction.

  • show_versionFree

    Show the current MCP platform and adapter versions.

  • toolkit_infoFree

    Returns the current toolkit state: installed MCPs, their connection status, the accounts connected to each one, and how many catalog tools each exposes.

Public scan report

scanner v0.1.9 · 2026-09-27 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 119ms20/20
  • Tool poisoning20 tool descriptions checked15/15
  • Auth qualityopen endpoint, read-only tools10/15
  • Maintenancelast push 31 days ago12/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year9/10
Overall 88/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Investidor B3 compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
88/100
higher than 75% of 48,255 servers
Tools
20
the typical server has 7
Tools that change things
0%
typical: 0%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
111 ms
faster than 81% of 30,031 servers

What its tools let an agent do: 19 read · 1 change

Install Investidor B3 in Claude Code, Cursor or VS Code

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

What the publisher says

From the Investidor B3 repository's README, as published. We do not edit it. Read it on GitHub

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

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Investidor B3: common questions

Is Investidor B3 MCP server safe?
Yes, by our scan: it is graded A (88/100). Read the Investidor B3 safety report
How do I install Investidor B3?
It runs remotely at api.mcp.ai. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Investidor B3 need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Investidor B3 maintained?
The last commit was 69 days ago (2026-08-27). The latest release is v0.1.0.
Is Investidor B3 up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does Investidor B3 compare with other MCP servers?
safety score 88/100 (higher than 75% of 48,255 servers); tools 20 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

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