Mnesıum
An AI co-architect and persistent memory, for solo developers who build with Xcode Coding Assistant.

Memory, real tools, a workflow of its own — what turns your AI into a co-architect.

Mnesium remembers every project (and the link between them), every decision, what you tried, what shipped, what's still open and what's coming — then gives an AI the tools to act on it: plan, design, arbitrate, brief Xcode to write your code. Nothing runs outside your control: you host the conversation, see every move, keep the final say.

Local database
On-device search
No telemetry
Built by one person, for one person's workload — not a team's process.
Where you build

It observes the sessions you already run in Xcode. Nothing new to adopt, no tickets, nothing to log by hand.

Across projects

Decisions, architecture and hard-won gotchas — kept in one place and carried between your apps. What you solved once shows up when you hit it again.

A co-architect

The teammate a solo dev doesn't have. It doesn't write the code: it designs, arbitrates and briefs the assistant that does — with Mnesium's memory, tools and process behind it.

On your Mac

Roadmap, notes and terminal in one window. Your database never leaves your Mac, and search runs on-device. Your data goes nowhere but to your own AI provider.

From the first idea to shipping — memory, roadmap, skills, references, notes and terminal in one place, with an MCP server to wire it into your own pipeline.
Mnesium was built with Mnesium.
macOS · Starting with Claude Code in Xcode and desktop sessions — more assistants to follow mnesium.com