BAALDA
團隊的第二大腦，透過MCP：Claude、ChatGPT、Cursor及其他客戶端可讀寫團隊即時編輯的同一份純Markdown筆記，每人擁有各自的檔案存取權限。
文件
A Second Brain, Shared.
The team second brain. Plain Markdown files on your disk, edited together in real time, and read and written by your AI like a teammate.
Free & open source · Apache-2.0 · v0.1.83 · macOS · Windows · Linux
Setup & support
One-on-one support,from the Baalda creator
Get your team’s Second Brain set up properly, then keep it working. Support runs through the Ben AI Accelerator, alongside a community of 1k+ professionals getting results with AI.
- Unlimited 1:1 calls
- Weekly onboarding
- Courses & templates
- Community support
Not a folder of notes.Your team’s memory.
Notes
Tasks
Graph
Vaults
Files
Plain markdown,on your own disk
Every note is a real.md file in a folder you own. No database, no proprietary block format, no export button to beg for. Your context outlives every tool built on top of it, Baalda included.
- Plain markdown
- Works offline
- Backlinks & graph
- No lock-in
~/team-vault
Q3 strategy.md
edited 2m ago
Architecture decisions.md
Ana, live
Hiring loop.md
private
Daily/2026-09-21.md
you
Q3 strategy.md
Q3 strategy
## Where we are
Three bets this quarter. Each one has an owner and a doc. See [[Pricing experiments]] and [[Self-host GA]].
## Open questions
Anna is editing this paragraph right now, and the merge is clean. No conflict dialog, no duplicated section, no lost work. The file on disk is the same file your assistant reads.
Connect
Your AI writes in the same files you do
Connect an assistant over MCP and it works in your markdown as a real collaborator. Its writes flow through the same sync as human edits, as operations rather than whole-file overwrites.
MCP clients
What it can do
- Read any note it has access to
- Write plain markdown back
- Merge as operations, never whole-file overwrites
- Respect the same per-file permissions you set
- Follow wikilinks and backlinks
- Leave a version history you can walk back
What teams build
Open source
Apache-2.0Read the source, self-host the backend
Apache-2.0Free and open source, forever
Local-firstPlain.md files on your own disk
Real-time CRDTKeystroke-level merge, no conflict dialogs
Model Context Protocol
MCP-nativeYour AI edits the same files you do
Collaborate
Everyone in the same note, at once
Open the same file together. A CRDT merges every keystroke, so two people, or ten, never clobber each other’s work. No conflict dialogs, no lost strategy docs.
Live presence
Anaediting ## Open questions
Sarareading
Youediting ## Where we are
3 people in this note
Per-file permissions
Q3 strategy.mdTeam · editor
Architecture.mdTeam · viewer
Hiring loop.mdPrivate
Share a folder, then lock one file inside it.
Version history
Q3 strategy.md
14:02Anaadded ## Open questions
11:47Clauderewrote the summary
09:15Youcreated the note
Every edit is an operation you can walk back.
Multi-device sync
MacBook Proin sync
Studio Display Macin sync
Linux boxoffline, 2 edits queued
Converging in milliseconds, not maybe-in-two-hours.
Vaults
One per team or client,
permissioned separately
Product vault
Shared
📄Q3 strategy
🗒️Release notes
Folders
📁Specs
Client vault
Shared
📘Brand guide
Private
🔒Commercials
Folders & Tags
Classic structure for clear
hierarchies
Folders
📁Specs
🧭Decisions
🧪Research
📆Daily
Tags
#roadmap
#rfc
Graph
Backlinks that survive
renames
Linked fromLinks
Q3 strategy7
Pricing experiments4
Self-host GA3
Architecture decisions3
Hiring loop2
Millionsof notes in one workspace, with no slowdown
Thousandsof teammates online and in sync at once
Hundredsof people editing together, live, in one space
Instantevery note is up to date before you open it
Need more? Baalda scales out to tens of thousands of people working at once.
Free
For you and one teammate. Self-host with no limits.
$0 / forever
Team
For teams of 3 or more, on one account across every vault.
$10 / seat / month
or $110 per seat a year · minimum 3 seats
Or self-host the backend, free
Start your team’s brain
Free and open source. No account needed.