A Membase alternative that keeps your memory encrypted on your computer

Membase is a hosted memory for AI apps and agents, with a browser extension, an MCP server and tools for developers. Its own site says the hosted service is not end-to-end encrypted. If you want one memory for ChatGPT, Claude and Cursor that stays encrypted on your own computer and needs no API key, Zaaheen is built for that instead.

By Zaaheen · Last updated 11 November 2026

What Membase is

This page is about Membase at membase.com, made by a company called Unibase. A different product, at membase.so, also uses the name; the two are not connected (Membase's site).

Membase builds one long-term memory from your chats and files. Its browser extension works with ChatGPT, Claude, Gemini, Grok, DeepSeek and Kimi in Chrome, and Claude Code, Cursor and Codex connect through its MCP server. Developers can also use it from code. A desktop app is listed as coming soon (its home page).

Your memory is kept on Membase's service, which its privacy policy says runs on Amazon Web Services in Singapore, and the relevant parts of what you save are sent to its AI provider, currently OpenAI (its privacy policy). There is also a local mode for people who use Python, which keeps the memory in a folder on your computer but needs your own OpenAI API key (its GitHub page).

Where Zaaheen differs

  • Encrypted on your computer, by default. Zaaheen keeps your memories encrypted on your own computer, and our servers never receive them. Membase's hosted service, its default, is not end-to-end encrypted, in its own words.
  • No API key, no outside AI service. Zaaheen runs its own AI models on your computer, so your memories are never sent to an AI company to be sorted or searched. Membase's local mode still needs an OpenAI key.
  • A finished app for Windows and Mac. Zaaheen installs like any other app, and you connect each AI app from its Agents tab. Membase's desktop app is not out yet.
  • Code you can read. All of Zaaheen's code is public to read, so anyone can check how your memories are handled. Membase publishes its tools, but its memory engine ships as a closed, compiled package.
Claude Zaaheen on your computer Cursor ChatGPT Codex Saved once Prefers TypeScript
Something you tell Claude is saved once to the encrypted memory on your computer, and Cursor and your other apps can recall it later.

Side by side

MembaseZaaheen
Where memories are keptIts hosted service in Singapore; or a local folder with the Python local modeYour computer, encrypted
EncryptionEncrypted at rest; the hosted service is not end-to-end encrypted, in its own wordsEncrypted on your computer; our servers never receive your memories
Sorted and searched byOpenAI, hosted or localAI models running on your computer
SetupBrowser extension, MCP server, or Python for local modeAn installer, then connect each app
Desktop appComing soonWindows and Mac
PriceNo prices on its site when we checked30 days free, then $5 a month or $48 a year

As of 11 November 2026, from Membase's own pages, and may change. Check the links above for the latest.

What matters most in any memory is whether the right answer comes back, and whether the app admits it when the memory doesn't hold one. We asked Cursor five questions about facts another app had saved to a shared Zaaheen memory.

5 questions to Cursor about facts saved by another app
Recalled the fact 3 of 5 Said it didn't know 1 of 5 Avoided the trick 1 of 5
5 questions to Cursor about facts saved by another app
OptionQuestions
Recalled the fact3 of 5
Said it didn't know1 of 5
Avoided the trick1 of 5

Source: Zaaheen's own test, 5 June 2026, a development version of Zaaheen on Windows. Didn't know, correctly: a blood type the memory didn't hold. The trick: asked about the person's cat, it said they have a dog.

Where Membase is the better choice

If you mostly use AI in a web browser, Membase's extension reaches ChatGPT, Gemini, Grok and others there, which Zaaheen doesn't. It can also build memory from files and pages you save, and developers get an API and tools to build with. And if you're happy for your memory to live online, it follows you to any computer.

Where Zaaheen falls short

  • It runs on Windows and on Macs with Apple chips only, with no Linux or phone version.
  • ChatGPT connects through the ChatGPT app for your computer, not in a web browser.
  • Your memory lives on one computer; there is no sync between computers yet.
  • It isn't open source, and after the 30-day trial there is no free plan.

Membase is a name of its owner. We have no link with Membase or Unibase. Facts checked on 11 November 2026; if anything here is wrong or out of date, tell us at customerservice@zaaheen.com and we'll correct it.