It brings common Brazilian market information into the coding agent instead of requiring separate manual lookups. The data sources and scope are stated, but the plugin does not promise investment advice.

dados-b3 — Plugin for Claude Code by Val7h/dados-b3-mcp

dados-b3

dados-b3 is a plugin for Claude Code from Val7h/dados-b3-mcp. Its manifest loads nothing; the 1 skill, 1 MCP server it bundles cost 147 tokens per session together, scanned A, original, MIT.

A plugin that provides Brazilian investment data from public company filings and B3 market sources, where B3 is Brazil's stock exchange. It covers companies, funds, ETFs, BDRs, dividends, and historical returns through a remote data service.

In plain words

What is it for?: Use it to look up fundamentals, prices, valuation measures, dividends, total returns, real-estate funds, ETFs, BDRs, and B3 indexes.
Why use it?: It brings common Brazilian market information into the coding agent instead of requiring separate manual lookups. The data sources and scope are stated, but the plugin does not promise investment advice.

Written for Claude Code: a Claude Code plugin manifest.

Good fit Use it to look up fundamentals, prices, valuation measures, dividends, total returns, real-estate funds, ETFs, BDRs, and B3 indexes.

Compare 6 plugins from other repositories ↓

Install in Claude Code

/plugin marketplace add Val7h/dados-b3-mcp

/plugin install dados-b3

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo

git clone --depth 1 https://github.com/Val7h/dados-b3-mcp

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/plugins/val7h/dados-b3-mcp/dados-b3/github.svg)](https://agentmods.dev/plugins/val7h/dados-b3-mcp/dados-b3)

Your own site

<a href="https://agentmods.dev/plugins/val7h/dados-b3-mcp/dados-b3"><img src="https://agentmods.dev/badge/plugins/val7h/dados-b3-mcp/dados-b3/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/plugins/val7h/dados-b3-mcp/dados-b3"><img src="https://agentmods.dev/badge/plugins/val7h/dados-b3-mcp/dados-b3.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured The manifest loads nothing itself; its 1 skill, 1 MCP server cost 147 tokens a session between them.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

dados-b3 scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/dados-b3/.claude-plugin/plugin.json · 15 lines

What it actually says

{
  "name": "dados-b3",
  "displayName": "Dados B3",
  "version": "1.0.0",
  "description": "Brazilian stock data from public CVM and B3 sources: fundamentals, end-of-day prices, dividends, total return, FIIs, ETFs and BDRs, through the remote Dados B3 MCP server",
  "author": {
    "name": "Dados B3",
    "url": "https://dadosb3.com"
  },
  "homepage": "https://dadosb3.com/claude-code",
  "repository": "https://github.com/Val7h/dados-b3-mcp",
  "license": "MIT",
  "keywords": ["mcp", "b3", "brazil", "stocks", "cvm", "dividends", "fii", "etf", "bdr"]
}

Contents

What it installs

The manifest is a name and a version. 1 skill, 1 MCP server travel with it, and installing the plugin installs all of them — 147 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

4d ago First seen · 15 lines scan A bfaa39b3b4ab

Subscribe to this mod's changes

dados-b3 is a plugin published in the GitHub repository Val7h/dados-b3-mcp (0 stars, last pushed yesterday), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-11-04.

Finance and fintech api b3 bovespa brazilian-stocks cvm financial-data

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