Locus MCP Server

Hierarchical markdown memory palace for AI agents — structured palace navigation via MCP tools.

Local serverstdioPython

What is the Locus MCP Server?

Hierarchical markdown memory palace for AI agents — structured palace navigation via MCP tools.

The short version

Hierarchical markdown-based memory system for autonomous AI agents. Each directory is a room (locus) in the palace, containing specific knowledge navigated on demand. Named for the atomic unit of the Method of Loci.

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Maintainer setup documentation.

Recorded tools

Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.

ToolWhat it does
locus/locus
locus-consolidate/locus-consolidate
locus-audit/locus-audit
locus-feedback/locus-feedback
locus-release/locus-release
locus-security/locus-security
locus-palace-init/locus-palace-init
memory_listReturns INDEX.md (no args) or lists a room's files
memory_readReads any file in the palace
memory_writeAtomically writes a file (guarded — cannot write to _metrics/, sessions/, .sig/, .security/)
memory_searchFull-text search across the palace (ripgrep or Python fallback)
memory_batchReads up to 20 palace files in a single call — use for multi-room loads

How to install the Locus MCP Server

{
  "mcpServers": {
    "locus": {
      "command": "locus-mcp",
      "args": ["--palace", "/path/to/palace"]
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Configuration

VariableDescriptionRequired
LOCUS_PALACEConfiguration value read at startup.Optional
FASTMCP_HOSTEndpoint or connection string the server talks to.Optional

Example prompts to try

  • “Use Locus to Skill.”
  • “Use Locus to locus.”
  • “Use Locus to locus-consolidate.”

Frequently asked questions

Hierarchical markdown memory palace for AI agents — structured palace navigation via MCP tools. Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.