Perseus Vault (formerly Mimir/Mneme), persistent memory engine for AI agents

io.github.Perseus-Computing-LLCv2.15.0Updated Sep 23, 2026

Local-first MCP memory server: SQLite, FTS5 and vector search, AES-256-GCM. 55 tools, no cloud.

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Installation

In SourceWeft

  1. Open Perseus Vault (formerly Mimir/Mneme), persistent memory engine for AI agents in the dashboard and add it to a workspace.
  2. 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.

Tools

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Version history

1
  1. v2.15.0LatestSep 16, 2026