PERSONAL BRAIN

A second brain
that cites its sources.

Drop in your docs, notes and PDFs, and ask questions about them. Every answer comes with the source attached. Bring Claude or Codex via MCP, or use Combra's AI.

See pricing

FREE TO START · $12/MO FLAT WHEN YOU'RE READY

Ask the brainanswered in 0.9s
Y
You 14:35

Combra APP 14:35

Your lease needs 60 days' notice plus one month's rent to break early.

lease.pdf · p.4
Breaking lease?Accountant notes?Camera review?
Drop in

Drop in everything you know.

PDFs, notes, docs, screenshots, Drive files. Combra reads it all and keeps up as it changes.

Any format

PDFs, docs, images, markdown, transcripts — all indexed

Stays current

connect Drive and it syncs automatically

Your brain
Ingesting
lease.pdf indexed
trip-notes.md indexed
screenshot.png indexed
meeting.vtt indexed
Ask
Your brain
Y
You 11:04

what did the doctor say about the dosage?

Combra APP 11:04

500 mg, twice a day with food.

visit-notes.pdf
Ask

Ask anything. Get the source.

Ask in plain language. Combra answers from everything you've added, with the source attached. If it can't back it up, it says so.

Cited or silent

the source is one click away

No hallucinations

if Combra can't back it up, it says so

Everywhere

Bring your own AI.

Connect Claude, Cursor or ChatGPT via MCP. Your brain answers inside the tools you already use, with your keys and your data.

MCP native

one server, any MCP-capable agent

Your keys, your data

nothing routed through third parties

Connected agents
MCP
Claude connected
Cursor connected
ChatGPT connected
ask_brain() · your keys, your data

One place for everything you know

Drop things in and ask. Combra keeps it organized for you.

PDFs
Notes
Docs
Screenshots
Web pages
Transcripts
Studying Research Job hunt Travel Health Journaling

Your data stays yours

Your workspace is isolated and never shared with other users or models.

Never used for training

The model reads your data only to answer. Nothing is used for training.

Export or delete anytime

You own it. Export a full archive or delete your workspace at any time.

Free to start. $20 when you're ready.

Free to start. $20 a month when you want Combra's AI.

Free
$0TO START

Your personal brain. Bring your own AI.

  • 1,000,000 tokens to start
  • 100 documents or 1,000 pages
  • Bring your own AI (Claude, Codex) via MCP
Most popular
Personal
$20/ MO

Combra AI for one person, a flat $20 a month.

  • 4,000,000 tokens / mo
  • 25 GB memory
  • Combra AI built in, ready to use
  • Skills & agents (coming)
Coming soon
BYOK
$8/ MO

Store everything, bring your own LLM keys.

  • Upload & store your docs
  • Runs on your own LLM keys
  • Ask & Facts on your keys (coming soon)

Working with a team? Combra for teams starts at $29/seat

Beta pricing is provisional. Lock in early-access rates for 12 months after launch.

FAQ

Questions, answered.

Something else on your mind? Write us at [email protected].

What do I get on the Free plan?
You can add up to 100 documents or 1,000 pages for free, import a Slack archive, and connect your own AI via MCP. You also get 1M bonus tokens to try Combra AI before deciding on Personal.
What is MCP and why does it matter?
MCP (Model Context Protocol) is an open standard that lets AI tools use external services. Combra ships an MCP server, so Claude, Cursor and your own agents can query your brain directly, with the same citations.
Is my data used to train AI models?
No. The model reads your data only to answer your questions. Nothing is used for training, and nothing leaves your isolated workspace.
What if Combra doesn't know the answer?
It tells you it doesn't have a grounded source, and points to what's missing, instead of making something up. A wrong number costs more than a missing one.

Give yourself a second brain.

We're onboarding a small first cohort. Send your details and we'll be in touch.

Free to start · no credit card needed