Perseus Vault (formerly Mimir/Mneme), persistent memory engine for AI agents
io.github.Perseus-Computing-LLCPublished by GitHub account Perseus-Computing-LLCv2.15.0Updated Oct 25, 2026
Local-first MCP memory server: SQLite, FTS5 and vector search, AES-256-GCM. 55 tools, no cloud.
The publisher's own server: Memory.fit
Overview
A local-first MCP memory server that gives an AI assistant persistent memory backed by SQLite with full-text and vector search and AES-256-GCM encryption.
- What you can do
- Store and recall persistent memories for an assistant across sessions, kept on the local machine rather than in the cloud. Search stored memories by keyword through SQLite full-text search and by meaning through vector search. Protect stored content with AES-256-GCM encryption. The manifest lists no individual tools, but the description states the server exposes 55 tools covering these memory operations.
- When to use it
- Use it when you want an assistant to remember context between conversations and you prefer that memory to stay on your own machine instead of a hosted service.
- Requirements
- Runs as a local process over stdio, distributed as a container image and started with Docker. No authentication, environment variables or headers are declared.
Installation
In SourceWeft
- Open Perseus Vault (formerly Mimir/Mneme), persistent memory engine for AI agents in the dashboard and add it to a workspace.
- Enable the server for the chats that should use its tools.
Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.
Other MCP clients
Follow the launch instructions in the repository.
README
This repository has no README.
Tools
0Version history
1- v2.15.0LatestSep 16, 2026
Score
25% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
- Reached in the last 30 days25 pts
Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.
- Auth declared10 pts
Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.
- Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
- DescriptionRequired15 pts
- Logo10 pts
- Documentation15 pts
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
- License10 pts
Declare a license in the repository or the registry entry.
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