# Investidor B3 (remote · api.mcp.ai)

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

- Trust score: 64/100 (medium)
- Change this week: +9
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `api.mcp.ai`: 64/100 (this document), [markdown](https://verifymcp.io/servers/mcp-dir-b3-mcp/p-b3.md), [page](https://verifymcp.io/servers/mcp-dir-b3-mcp/p-b3)

## Channel facts

- Endpoint: `https://api.mcp.ai/p_b3`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.1.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS not yet verified: we couldn't determine whether a plaintext access path exists.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 66/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 1567 tokens (~78/item across 20 items; 20 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 67/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

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

### Codex

```toml
[mcp_servers.mcp-dir-b3-mcp]
url = "https://api.mcp.ai/p_b3"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "mcp-dir-b3-mcp": {
      "type": "remote",
      "url": "https://api.mcp.ai/p_b3",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add mcp-dir-b3-mcp --url https://api.mcp.ai/p_b3 --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  mcp-dir-b3-mcp:
    url: "https://api.mcp.ai/p_b3"
```

### Other

```json
{
  "mcpServers": {
    "mcp-dir-b3-mcp": {
      "type": "http",
      "url": "https://api.mcp.ai/p_b3"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-03 (score 64, 0)

- [security] The server rewrote its instructions, which are the text every model session reads
- [functional] Server version: 0.9.200 → 0.9.201

### 2026-08-02 (score 64, +1)

- [security] The server rewrote its instructions, which are the text every model session reads
- [functional] Server version: 0.9.197 → 0.9.200

### 2026-08-01 (score 63, +3)

- [security] The server rewrote its instructions, which are the text every model session reads
- [security] Tool “marketplace” rewrote its description, which is the text the model reads
- [functional] Schema quality: fair → good
- [functional] Server version: 0.9.196 → 0.9.197

### 2026-07-31 (score 60, +3)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 57, +1)

- [security] The server rewrote its instructions, which are the text every model session reads
- [functional] Server version: 0.9.190 → 0.9.194

### 2026-07-29 (score 56, 0)

- [security] The server rewrote its instructions, which are the text every model session reads
- [functional] Server version: 0.9.183 → 0.9.190

### 2026-07-28 (score 56, +1)

- [security] The server rewrote its instructions, which are the text every model session reads
- [functional] Server version: 0.9.179 → 0.9.183

### 2026-07-27 (score 55, +1)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

## MCP tools (20)

### `b3_list_accounts` (~37 tokens)

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

Input parameters:

- `account` (string)

### `b3_get_patrimonio` (~55 tokens)

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

Input parameters:

- `account` (string)
- `data` (string)

### `b3_get_carteira` (~63 tokens)

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

Input parameters:

- `account` (string)
- `agrupamento` (number)
- `quantidade` (number)

### `b3_get_posicao` (~76 tokens)

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

Input parameters:

- `account` (string)
- `data` (string)
- `pagina` (number)

### `b3_list_ativos` (~78 tokens)

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.

Input parameters:

- `account` (string)
- `agrupamento` (number)
- `codigoProduto` (string, required)

### `b3_get_evolucao_patrimonial` (~46 tokens)

Série histórica de evolução do patrimônio na B3.

Input parameters:

- `account` (string)
- `ap` (number)
- `data` (string)

### `b3_list_negociacoes` (~63 tokens)

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

Input parameters:

- `account` (string)
- `dataFim` (string)
- `dataInicio` (string)
- `page` (number)

### `b3_list_movimentacao` (~74 tokens)

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

Input parameters:

- `account` (string)
- `dataFim` (string)
- `dataInicio` (string)
- `pagina` (number)

### `b3_list_proventos_a_receber` (~56 tokens)

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

Input parameters:

- `account` (string)
- `data` (string)
- `pagina` (number)

### `b3_list_proventos_recebidos` (~68 tokens)

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

Input parameters:

- `account` (string)
- `dataFim` (string)
- `dataInicio` (string)
- `page` (number)

### `b3_list_ofertas_publicas` (~66 tokens)

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

Input parameters:

- `account` (string)
- `dataFim` (string)
- `dataInicio` (string)
- `page` (number)

### `b3_get_perfil` (~34 tokens)

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

Input parameters:

- `account` (string)

### `b3_list_instituicoes` (~36 tokens)

Instituições (corretoras) vinculadas ao investidor na B3.

Input parameters:

- `account` (string)

### `b3_get_ultima_atualizacao` (~50 tokens)

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

Input parameters:

- `account` (string)

### `show_version` (~17 tokens)

Show the current MCP platform and adapter versions.

### `report_bug` (~50 tokens)

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

Input parameters:

- `context` (string)
- `conversation` (string)
- `message` (string, required)

### `connect` (~42 tokens)

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` (~30 tokens)

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

### `marketplace` (~402 tokens)

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.

Input parameters:

- `action` (string)
- `arguments` (string)
- `cancel_comment` (string)
- `cancel_reason` (string)
- `conversation` (string)
- `immediate` (boolean)
- `limit` (number)
- `mcp_id` (string)
- `message` (string)
- `query` (string)
- `report_context` (string)
- `request_details` (string)
- `request_name` (string)
- `tier_slug` (string)
- `tool_id` (string)

### `authenticate` (~99 tokens)

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.

Input parameters:

- `token` (string)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/mcp-dir-b3-mcp/p-b3#diagnostics

## Score history

- 2026-08-03: 64
- 2026-08-02: 64
- 2026-08-01: 63
- 2026-07-31: 60
- 2026-07-30: 57
- 2026-07-29: 56
- 2026-07-28: 56
- 2026-07-27: 55
- 2026-07-26: 54

## Links

- Remote endpoint: https://api.mcp.ai/p_b3
- Repository: https://github.com/mcp-dir/b3-mcp
- Changelog RSS feed: https://verifymcp.io/servers/mcp-dir-b3-mcp/p-b3/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/mcp-dir-b3-mcp/p-b3/changelog.json
- HTML version of this page: https://verifymcp.io/servers/mcp-dir-b3-mcp/p-b3