Mimir — Persistent Memory Engine
io.github.tcconnallyPublished by GitHub account tcconnallyv2.0.0Updated Oct 27, 2026
Persistent memory for AI agents. 36+ MCP tools: encryption, decay, hybrid search, knowledge graph.
The publisher's own server: Memory.fit
Overview
Mimir is a local, desktop-only MCP server that gives an AI assistant persistent memory, with encryption, decay, hybrid search and a knowledge graph.
- What you can do
- Store and recall persistent memories across sessions
- Search memories with hybrid retrieval
- Organize and relate stored knowledge in a knowledge graph
- Apply decay to older memories and encrypt stored data
- Exposes a broad tool set (36+ tools) covering these memory operations
- When to use it
- Useful when you want an assistant to remember context between conversations or build up a durable personal knowledge store on your own machine, rather than relying on per-session context.
- Requirements
- Runs as a local process over stdio on a desktop machine; no package, environment variables, headers or authentication are declared in the manifest, so installation details are not documented here.
Installation
In SourceWeft
- Open Mimir — Persistent Memory Engine 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.
Tools
0Version history
1- v2.0.0LatestSep 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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