
Br8n
io.br8nPublished by br8n.iov0.1.2Updated Oct 24, 2026
Owned, portable working memory: a plain-files markdown brain any model can read and cite.
Overview
Local stdio MCP server that lets an assistant list, read and grep-search a plain-markdown "brain" folder you own, citing file and line.
- What you can do
- List the files in a markdown brain folder
- Read a specific brain file
- Search the brain by text and get file plus line for citation
- Answers are grounded in your own files rather than chat history, so any model can read the same memory
- When to use it
- Useful when you want a model to answer from a small, human-readable set of notes, decisions, handoffs or voice guidelines that you own and can move between machines, and you want answers that name their source file.
- Requirements
- Node.js with npx or a global npm install of @br8n/mcp; a local brain directory passed as a command-line argument; an MCP client such as Claude Desktop, Claude Code or Cursor. No account, API key or environment variable is declared.
Installation
In SourceWeft
- Open Br8n in the dashboard and add it to a workspace.
- Enable the server for the chats that should use its tools.
Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.
Other MCP clients
Follow the launch instructions in the repository.
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
Claude Desktop / Claude Code / Cursor (any MCP client) — add:
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)
Configure npm's trusted publisher once for @br8n/mcp:
- Publisher: GitHub Actions
- Organization:
Branded-Mayhem-Collective-LLC - Repository:
br8n - Workflow:
publish.yml - Allowed action:
npm publish
Publish the version already committed to main, then update the official MCP Registry:
The GitHub-hosted workflow uses npm trusted publishing (OIDC), so it requires no long-lived npm token. Change the version argument for future releases.
Source: README.md at commit 124d390
Tools
0Version history
1- v0.1.2LatestSep 16, 2026
Score
50% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
- Reached in the last 30 days25 pts
Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.
- Auth declared10 pts
Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.
- Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
- DescriptionRequired15 pts
- Logo10 pts
- Documentation15 pts
- License10 pts