Never forget anything. Connect every AI you use.

A second brain you own, ready in every AI you work with.

Works with

Your memory. Not theirs.

The cloud era

If the app is free, you're the product.

The AI era

History is repeating itself, and this time the data is even more sensitive.

It's already happening.

  1. May 2025 OpenAI's CEO wants a ChatGPT "you put your whole life into." Source
  2. Sep 2025 Claude trains on your chats unless you opt out. Source
  3. Dec 2025 Meta uses AI chats to target ads. Source
  4. Dec 2025 Meta buys an AI pendant that recorded conversations. Source
  5. Oct 2026 ChatGPT can use your memory to pick ads. Source

When doing gets cheap, knowing what you want is everything.

Say it once.

  1. Capture

    Never forget anything.

    Speak or type. It's always there.

  2. Mesh

    Never organize anything.

    Sorted in the background.

  3. Ask

    Connect every tool.

    Your memory, in every AI you use.

AI native. Inherently multiplayer.

Built for you and all your agents.

One memory you and every agent read and add to. You always see who added what.

Shaped by everyone who uses it.

Share an idea, vote on others. A software factory builds what the community asks for.

  1. 1 You share an idea
  2. 2 The community votes
  3. 3 The factory builds it
  4. 4 Shipped, with your name on it

Your work stays yours.

  • Encrypted
  • Never used for training
  • No ads, ever
  • Open source
  • Export anytime
  • GDPR, made in Hamburg
Privacy policy →

Who's behind it

Alexander Bückner

A dedicated human + a fleet of agents

“I forget sometimes. My agents don’t.”

I juggle several projects and I’m notoriously bad at organizing things. My work was fragmented across my thoughts, chats, agents, code and notes. I needed one system to keep it all in sync. Then I realized the best thing would be a place where I can think alongside my agents on equal terms. That’s why I built Eigen Mesh. Now I have no loose ends, I don’t miss deadlines, and I do my taxes on time. It changed my life.

Alexander Bückner

Design engineer and founder, Hamburg

Less than a coffee.

Free

€0

No card needed.

  • Capture by voice or text
  • Sorted into projects for you
  • Ask your memory anything
  • Connect Claude, ChatGPT, Cursor and more
  • 100 free credits to try it all
Start free

Monthly

€3.99 a month

Once your free credits run out.

  • Everything in Free
  • Keeps going after your free credits

Questions

What is Eigen Mesh?

A second brain you own. Say what's on your mind; it's sorted for you and ready in every AI you connect.

How is it different from ChatGPT or Claude memory?

Theirs stays inside their app. Yours works across every AI you connect and is never used for ads or training.

Which AI tools does it work with?

Tools that connect to MCP with an API key, like Claude Desktop, Claude Code and Cursor. ChatGPT can't connect yet.

Do I have to organize anything?

No. Every note is sorted for you: to-do, idea, question or reminder, and the project it belongs to.

Is my information used to train AI?

No. Eigen Mesh never uses it for training or ads.

What does it cost?

Free to start, then €3.99 a month.

What if Eigen Mesh shuts down?

Export everything anytime. The code is open source, so you can keep running it.

Under the hood

What happens to a thought after you send it.

Capture

You, or any AI over MCP.

1

Saved

right away

Kept word for word, and findable by keyword at once.

Your words

as you wrote them

Keyword index

Postgres full-text

Keyword search

The exact words you used.

2

Read and connected

seconds later, in the background

An LLM sorts it by type and project and moves long reference text into a linked note. The people, places and things in it join your graph, duplicates merged.

Type and project

to-do, idea, person…

Embedding

pgvector, 1,536 dimensions

Knowledge graph

Apache AGE

Vector search

What you meant, in other words. Questions about time walk the graph.

3

Slept on

every night

Your graph is clustered into topics, each one summarized. Old thoughts fade; open loops stay near the top.

Topics

Leiden clusters, summarized

Topic routing

Goes straight to the topics that fit.

Ask

You, or any AI over MCP. All three searches run at once.

Answered, with sources

What the three searches find is merged, and an LLM reranks the best fifteen. The answer is built only from that and cites the thoughts it came from; anything below the cut-off is left out.

→ back to you, or the AI that asked

Mesh

Postgres 16. Each account is walled off from every other.

  • PostgreSQL 16
  • pgvector
  • Apache AGE
  • Leiden clustering
  • MCP
  • Apache 2.0
Docs →

Stop starting over.

Start free