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Br8n MCP Server

Developer ToolsModerate5.2MCP RegistryLocal
Free

Server data from the Official MCP Registry

Owned, portable working memory: a plain-files markdown brain any model can read and cite.

About

Owned, portable working memory: a plain-files markdown brain any model can read and cite.

Security Report

5.2
Moderate5.2Moderate Risk

br8n is a well-designed, focused MCP server for reading markdown-based knowledge bases from the filesystem. The codebase demonstrates strong security practices: proper path traversal protection, input validation, no credential handling, no network access, and clean dependencies. The server's scope is appropriately narrow—it reads files the user owns and searches them. Minor quality improvements exist around error handling and logging, but do not significantly impact security. Supply chain analysis found 3 known vulnerabilities in dependencies (0 critical, 3 high severity). Package verification found 1 issue.

6 files analyzed · 8 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

File System Read

Reads files on your machine. Normal for tools that analyze or process local data.

env_vars

Check that this permission is expected for this type of plugin.

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-br8n-mcp": {
      "args": [
        "-y",
        "@br8n/mcp"
      ],
      "command": "npx"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

br8n

Owned, portable working memory. A plain-files brain template and a tiny MCP server that lets any model read it.

Everything your team has taught a chat tool about how the work gets done is sitting inside somebody else's login. Switch tools and you're a stranger again. This repo is the other direction: the memory lives in files you own, and the model is just a reader.

br8n is the AI delivery practice of Branded Mayhem Collective. This is the open part: the file layout and the door. The hosted install adds retrieval, governance, and someone running it with you — on the same files, which never change shape. br8n.io

What's here

  • template/brain/ — the brain layout: how-we-work/, decisions/, exceptions/, handoffs/, voice/. Markdown only. One file, one thing. Write the why, so the model can push back later.
  • src/ — an MCP server (stdio) with three tools: brain_list, brain_read, brain_search. Search returns file + line so answers cite their source. No vectors, no index, no account. Grep is the point.

Use it

npx @br8n/mcp ~/my-brain                         # MCP server on stdio (or: npm i -g @br8n/mcp && br8n ~/my-brain)
# template: git clone https://github.com/Branded-Mayhem-Collective-LLC/br8n && cp -r br8n/template/brain ~/my-brain

Claude Desktop / Claude Code / Cursor (any MCP client) — add:

{ "mcpServers": { "br8n": { "command": "npx", "args": ["-y", "@br8n/mcp", "/path/to/my-brain"] } } }

Then ask the model something the brain knows. It answers from the file and names it. Switch the model; same answer, same file.

Why files

  • Portable. cp -r brain/ new-machine/ is the whole migration. If you can't do that, you don't own it.
  • Inspectable. You can read every byte the model reads.
  • Model-agnostic. The folder doesn't care which model is on the other side of MCP.
  • It can push back. A decision stored with its why lets a model say "this conflicts with what you decided in March." A chat history can't.

The method is public on purpose

The layout and this server are MIT. What br8n charges for is hands on a real operation: eliciting what's actually in people's heads, shaping retrieval for the role, running it, and keeping it current. If you'd rather do it yourself, start here — most people should. The free first course is at br8n.io/lab.

Not affiliated

br8n on PyPI (a context-capture engine by a different author) is not this project.

MIT © 2026 Branded Mayhem Collective LLC

Publishing (maintainers)

npm login && npm publish --access public          # 1. publishes @br8n/mcp (org: br8n); package.json carries mcpName
mcp-publisher login github                        # 2. GitHub device-flow auth (org member)
mcp-publisher publish                             # 3. lists io.github.Branded-Mayhem-Collective-LLC/br8n in the official MCP registry

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