FLEECE / AI BRAINv0.2 · live
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Live · 134 tests · phase 1 shippedindexes 1k nodes in 4.2s

One graph,your wholecompany.

Map every agent, tool, employee and integration around one company brain. A live, inspectable view of everything your company runs — queryable from every AI you use, through MCP.

Start free trial →See it live14d · no card
claude · brain_recall
brain_recall("Q3 OKRs")
// 7 results · 34ms
1. q3-okrs-draft 0.94
2. weekly-04-12 0.87
3. 1:1-cofounder 0.82
your company, mapped ↗
2,847 AGENTS · 12,458 LINKS
Same brain ↦Claude DesktopCursorClineObsidianFleece AI AppZedCustom MCPClaude DesktopCursor
for companies — the enterprise brain

Every agent, tool & human,
mapped to one brain.

Connect your software, your teams and your AI agents. The Enterprise Brain maps all of it around one company brain — a live, inspectable graph of everything your organisation runs, knows and decides.

Leadership finally sees the whole picture: which agents are working, what they cost, who owns what, and how every tool and human connects.

Map your company →Talk to us
Every AI agent
what each one does, runs and costs
Every tool & integration
Slack, HubSpot, GitHub, Drive…
Every team & person
who owns what, who's connected
Cost & activity, live
token spend and load, per function
AI organisation maplive
The Enterprise Brain — a live graph of every agent, tool and human in your company, organised around the company brain
every agent, tool & human ↘
Drill in

Inspect any agent — what it does, and what it costs.

Click any node for live metrics, model, token spend and run-rate — per agent. Spot what's working, and what's burning budget.

Agent · cost & activitylive
Inspecting an AI agent inside the Enterprise Brain — live metrics, model, token spend and monthly cost
(01) — how an agent thinks with brain

Your AI thinks in your graph.

What did I decide about the alpha launch last week?
You · 14:32
01

User asks

"What did I decide about the alpha launch last week?"

alpha-launchdecisions2026-w16
02

Agent recalls

Brain queries: keyword + semantic + 2-hop graph traversal.

You decided to push to 2026-05-12 to fix the auth flow.
↳ alpha-launch.md (line 24)
↳ 1:1-cofounder-04-19.md
Claude · 14:32
03

Answer with provenance

Real notes, real dates, linked to source. No hallucination.

(02) — inside the app

Six surfaces.
One graph underneath.

The Fleece AI app is a thinking environment built on Brain. Every view reads and writes the same vault — what you do in Canvas appears in Graph, what an AI writes via MCP appears in Editor.

01 / Graph view

See your knowledge as a living graph. Pan, zoom, filter, focus.

  • +Force-directed layout
  • +Color by tag, type, recency
  • +1-hop / 2-hop focus mode
  • +Drag to reorganize
Read the docs →
~/MyBrain · Fleece · Graph view
⌘K
Layout
Force
Radial
Hierarchy
Cluster
Color by · type
Project12
Decision47
Meeting89
Insight31
Person24
Focus mode
1-hop
2-hop
all
Filters
tag: #projects
since: last 30d
min links: 2
32 nodes · 41 edges
↳ 8,902 in vault
alpha-launchship-may-12auth-firstkickoff-04-08auth-flowS.Q3-okrsnorth-starcofounder1:1-04-191:1-04-12scope-cutnorth-star.mdinsight · 2-hop5 backlinks · 04-22launch clusterQ3 clusterpeople / meetings
78%
+
⊕ fit
Map
find a node...⌘F
Selected node
project
alpha-launch
projects/alpha-launch.md
2026-04-12 · 24 lines
centrality 0.87 · degree 8
Outgoing (5)
ship-may-12
auth-first
auth-flow
kickoff-04-08
Incoming (3)
1:1-04-19
Q3-okrs
scope-cut
Open
⊕ pin
(02) — inside the app

Six surfaces.
One graph underneath.

The Fleece AI app is a thinking environment built on Brain. Every view reads and writes the same vault — what you do in Canvas appears in Graph, what an AI writes via MCP appears in Editor.

01

Graph view

See your knowledge as a living graph. Pan, zoom, filter, focus.

  • +Force-directed layout
  • +Color by tag, type, recency
  • +1-hop / 2-hop focus mode
  • +Drag to reorganize
02

Canvas

Spatial whiteboard for thinking — notes, sketches, embeds, all on one infinite plane.

  • +Infinite spatial canvas
  • +Drop notes, images, embeds
  • +Pen + sticky annotations
  • +Group → publish as note
03

Markdown editor

Block-based editor with [[wikilinks]], slash commands, transclusion, live backlinks.

  • +[[Wikilinks]] + autocomplete
  • +Slash commands (/embed, /todo)
  • +Live backlinks panel
  • +Block transclusion
04

Hybrid search

Keyword + semantic + graph traversal — ranked together, returned in milliseconds.

  • +Hybrid: BM25 + vectors + graph
  • +Filters by tag, date, type
  • +34ms median latency
  • +Save as smart query
05

Daily notes

Date-stamped pages with auto-rollups. Quick capture, scheduled reviews.

  • +Auto-created from template
  • +Quick capture (⌘N)
  • +Scheduled reviews
  • +Auto-rollup of mentions
06

Typed schema

Tana-style fields and types for structured knowledge. Optional — markdown stays plain.

  • +Optional typed fields
  • +Per-type templates
  • +Query by field/value
  • +Stays markdown on disk
(03) — the stack

Three layers.
Composed into
a brain.

Markdown on disk. Rust engine in the middle. MCP tools at the top. Every layer is independent — swap, skip, or extend any of them.

01 / VAULT

Markdown on disk.

.md files, YAML frontmatter, [[wikilinks]]. 100% Obsidian-compatible. If we disappear tomorrow, your knowledge stays.

~/MyBrain/
inbox/note.md
projects/alpha.md
daily/2026-04-28.md
.brain/index.db
.brain/graph.redb
02 / ENGINE

Rust core.

FTS5 + sqlite-vec hybrid search. redb graph store. yrs CRDT. 9.7 MB binary. Indexes 1k nodes in 4.2s.

03 / MCP

Tools for any agent.

10 JSON-RPC tools. Drop-in for Claude, Cursor, Cline, custom agents. The LLM picks them up automatically.

→ brain_remember(...)
→ brain_recall(...)
→ brain_traverse(...)
→ brain_connect(...)
...6 more
(04) — integrations

Drops into
the apps you
already use.

+ any MCP-compatible client
C
MCP

Claude Desktop

30 sec setup

Edit one config. Restart. 10 tools appear in Claude's tool list.

Setup guide →
C
MCP

Cursor

30 sec setup

Same MCP config. Your code-agent now remembers your decisions.

Setup guide →
C
MCP

Cline

30 sec setup

VS Code agent reads your vault. Plans real work from real context.

Setup guide →
O
Filesystem

Obsidian

0 setup

Same folder. Same files. Open it side-by-side. Your humans stay happy.

Setup guide →
F
Native

Fleece AI App

Built in

First-class. Visual graph view, canvas, embeddings UI.

Setup guide →
C
JSON-RPC

Custom agent

Read the API

Speak MCP or raw JSON-RPC. Build your own agent on top.

Setup guide →
(05) — tools

Ten tools.
Your AI calls them.

01brain_rememberWrite a knowledge node — auto-dedup, auto-merge.shipped
02brain_recallHybrid search — keyword + semantic + graph traversal.shipped
03brain_readRead a node by id or title.shipped
04brain_listBrowse nodes with filters (tag, date, type).shipped
05brain_connectCreate or delete edges between nodes.shipped
06brain_traverseBFS graph walk from any starting point.shipped
07brain_forgetArchive or hard-delete a node.shipped
08brain_diffVersion history via CRDT snapshots.shipped
09brain_schemaTana-style typed schema CRUD.shipped
10brain_exportExport vault scope as portable markdown.shipped
(06) — what we believe
I.

Plain markdown or nothing.

Your files stay open and portable. We never invent a proprietary format. If Fleece disappears, your knowledge is still on your disk, in a folder Obsidian can read.

II.

Local-first, encrypted always.

Source of truth is your laptop. Cloud sync is optional — and AES-256-GCM end-to-end. We literally cannot read your notes. We don't want to.

III.

Built for agents, friendly to humans.

Brain is for AIs first — every API decision favors agents. But the data model is a knowledge graph you can browse, edit, and trust.

(07) — pricing

Pick a plan.
14 days free.

MonthlyYearlysave 17%
Solo
12€/mo
  • +1 user
  • +Local + cloud sync
  • +Unlimited nodes
  • +MCP for all AI apps
Start free trial →
Pro · most popular
24€/mo
  • +Everything in Solo
  • +Janitor AI auto-merge
  • +Multi-agent vault sharing
  • +Advanced version history
Start free trial →
Teams
49€/user/mo
  • +Everything in Pro
  • +RBAC + audit log
  • +SSO Google/Microsoft
  • +Dedicated support
Contact sales
No credit card required
Cancel anytime
100% Obsidian-compatible export
(08) — faq

Common
questions.

Is it really 100% Obsidian-compatible?+

Yes. Plain .md + YAML frontmatter + [[wikilinks]]. Open the same folder in Obsidian — no migration, no surprises.

Where does my data live?+

On your laptop. The vault is a folder of markdown files. Cloud sync is optional, opt-in, and end-to-end encrypted (AES-256-GCM).

Which AI apps can read my Brain?+

Anything that speaks MCP — Claude Desktop, Cursor, Cline, Zed, Fleece AI App, custom agents. The 10 tools appear automatically in their tool lists.

Do I need an OpenAI key?+

Only for semantic search. Keyword and graph search work with no external dependencies. Embedding model is swappable.

Open source?+

Closed-source, proprietary. We may open select crates over time. The data format is open — your files are yours, forever.

(09) — start here

One brain.
Many agents.

Stop re-explaining yourself to every AI. Build the graph once.

$ brain init →Read the docs