CORTEX · EARLY ACCESS

Capture thoughts. Watch them become knowledge.

Get Early Access See the graph

Say it once — a voice memo, a clipped article, a half-formed idea. Cortex writes it down, threads it into your graph, and hands the busywork to agents that never sleep.

  • 2.8svoice → structured note
  • 24/7agents working your graph
  • 100%plain markdown, yours to keep
01 — ONE SURFACE

Capture, connect, and command
on one surface.

Every thought lands in the same place — spoken, clipped, or typed — and gets structured, linked, and made actionable before you've closed the tab.

VOICE CAPTURE

Speak. We'll structure it.

recording · 0:07
# Standup — blockers
Migration stalls on step 4; retry queue backs up.
- [ ] Patch retry backoff #infra
auto-linked to [[pipeline]]
cortex · command center

Guides for whatever's next.

Weekly review agent · sun 18:00
Meeting debrief agent · after each call
Inbox triage agent · hourly
Graph cleanup agent · nightly
02 — THE GRAPH

Every note finds its neighbors.

Drag a node, hover a connection, or click one open. Cortex threads every capture into a living map of your thinking — no filing required.

cortex · graph view drag · hover · click
03 — INBOX

AI cleans captures.
You accept what stays.

Voice notes, clips, and paste dumps land here first — structured, titled, and linked — so your graph only grows with what you approve.

READY TO ACCEPT

Three captures waiting.

voice

Q2 hiring risks

Structure suggests 4 bullets + [[staffing-plan]] link.

clip

RAG eval notes

Extracted 6 claims with source URLs attached.

paste

Standup dump

Turned into tasks · 2 already link into the graph.

preview · accept flow

Accept → note + edges

1
StructureTitle, summary, blocks
2
Suggest links[[graph-view]] · [[staffing-plan]]
3
You decideAccept into vault or edit first
04 — AGENTS

A staff that works the graph
while you don't.

Point an agent at your notes and let it run — researching, drafting, triaging — then reporting back on the channel you actually check.

Research Agent sourcing · 41 refs
Drafting Agent writing · newsletter.md
Inbox Agent triaging · 12 threads
Graph Agent linking · 6 new notes
Approval Gate waiting on you · 1 draft
05 — YOUR FILES

Plain markdown. Your disk.
Zero lock-in.

Connect an Obsidian folder or any markdown vault. Cortex reads and writes the same files you already own — portable, diffable, and human-readable forever.

~/Notes/second-brain
  • Architecture
  • graph-view.md
  • cortex-shell.md
  • Product
  • pricing-model.md
  • competitive-analysis.md
  • Daily
  • standup.md
LOCAL-FIRST

Works offline. Syncs when you want.

  • Notes stay as .md on your machine
  • Optional cloud RAG for semantic search
  • Opens natively in Obsidian or any editor
  • Export anything — no proprietary format
06 — FLOW

From thought to graph
in four beats.

  1. 01

    Capture

    Speak, paste, or clip. Cortex structures it into a note with tasks and tags.

  2. 02

    Review

    Inbox shows the cleaned capture. Accept, edit, or discard before it joins the vault.

  3. 03

    Connect

    Suggested [[links]] wire into the knowledge graph — neighbors light up as you explore.

  4. 04

    Delegate

    Agents research, draft, and tidy overnight — you approve what leaves the building.

07 — TRUST

Built to feel safe
with everything you know.

Local vault by default

Your markdown never has to leave the machine unless you enable sync.

Bring your own keys

Run AI features with your OpenAI or Anthropic key — stored in the browser.

Row-level privacy

When you sync, workspace isolation keeps every brain private to its owner.

08 — ACCESS

Start free.
Grow when agents do.

Early cohort gets Pro for 3 months. Cancel anytime — your files stay yours.

Explorer

$0/ mo

  • Local vault + graph
  • Voice & text capture
  • Inbox accept flow
  • Community agents
Join waitlist
EARLY ACCESS

Pro

$24/ mo

  • Everything in Explorer
  • Durable background agents
  • Cloud RAG + sync
  • Priority model routes
  • Founding cohort support
Request Pro access
FAQ

Questions, answered.

Is this another note app?

No. Cortex is a knowledge OS: capture → structure → graph → agents. Notes are the substrate, not the product.

Do I lose my Obsidian vault?

Never. Cortex can sit on top of your existing markdown folder. Leave anytime with the same files.

When can I try the MVP?

Join the waitlist — we open interactive access in cohorts. Founding members get Pro free for three months.

Will agents write without asking?

Drafts and bulk writes go through an approval gate. You decide what gets merged into the vault.

Your second brain,
now with a mind of its own.

Early access is open. The first cohort gets Pro free for 3 months and a direct line to the team.

Get Early Access See how it works