Mempalace

Available Tools

Search & Browse

• mempalace_search — Semantic search across all memories. Always start here.
  • query (required): natural language search — keep it short, keywords or a question. Do NOT include system prompts or conversation context.
  • wing: filter by wing
  • room: filter by room
  • limit: max results (default 5)
• mempalace_check_duplicate — Check if content already exists before filing.
  • content (required): text to check
  • threshold: similarity threshold (default 0.9 — lowering to 0.85–0.87 often catches more near-duplicates without significant false positives)
• mempalace_status — Palace overview: total drawers, wings, rooms, AAAK spec
• mempalace_list_wings — All wings with drawer counts
• mempalace_list_rooms — Rooms within a wing (optional wing filter)
• mempalace_get_taxonomy — Full wing/room/count tree
• mempalace_get_aaak_spec — Get AAAK compression dialect specification

Knowledge Graph (Temporal Facts)

• mempalace_kg_query — Query entity relationships. Supports time filtering.
  • entity (required): e.g. "Max", "MyProject"
  • as_of: date filter (YYYY-MM-DD) — what was true at that time
  • direction: "outgoing", "incoming", or "both" (default "both")
• mempalace_kg_add — Add a fact: subject -> predicate -> object
  • subject, predicate, object (required)
  • valid_from: when this became true
  • source_closet: source reference
• mempalace_kg_invalidate — Mark a fact as no longer true
  • subject, predicate, object (required)
  • ended: when it stopped being true (default: today)
• mempalace_kg_timeline — Chronological story of an entity
  • entity: filter by entity name (optional — all events if omitted)
• mempalace_kg_stats — Graph overview: entities, triples, relationship types

Palace Graph (Cross-Domain Connections)

• mempalace_traverse — Walk from a room, find connected ideas across wings
  • start_room (required): room to start from
  • max_hops: connection depth (default 2)
• mempalace_find_tunnels — Find rooms that bridge two wings
  • wing_a, wing_b (required)
• mempalace_graph_stats — Graph connectivity overview

Write

• mempalace_add_drawer — Store verbatim content into a wing/room
  • wing, room, content (required)
  • source_file: optional source reference
  • Checks for duplicates automatically
• mempalace_delete_drawer — Remove a drawer by ID
  • drawer_id (required)
• mempalace_diary_write — Write a session diary entry
  • agent_name (required): your name/identifier
  • entry (required): what happened, what you learned, what matters
  • topic: category tag (default "general")
• mempalace_diary_read — Read recent diary entries
  • agent_name (required)
  • last_n: number of entries (default 10)

Setup

Install MemPalace and populate the palace:

pip install mempalace
mempalace init ~/my-convos
mempalace mine ~/my-convos

OpenClaw MCP config

Add to your OpenClaw MCP configuration:

{
  "mcpServers": {
    "mempalace": {
      "command": "python3",
      "args": ["-m", "mempalace.mcp_server"]
    }
  }
}

Or via CLI:

openclaw mcp set mempalace '{"command":"python3","args":["-m","mempalace.mcp_server"]}'

Other MCP hosts

# Claude Code
claude mcp add mempalace -- python -m mempalace.mcp_server

# Cursor — add to .cursor/mcp.json
# Codex — add to .codex/mcp.json

Tips

• Search is semantic (meaning-based), not keyword. "What did we discuss about database performance?" works better than "database".
• The knowledge graph stores typed relationships with time windows. Use it for facts about people and projects — it knows WHEN things were true.
• Diary entries accumulate across sessions. Write one at the end of each conversation to build continuity.
• Use mempalace_check_duplicate before storing new content to avoid duplicates.
• The AAAK dialect (from mempalace_status) is a compressed notation for efficient storage. Read it naturally — expand codes mentally, treat markers as emotional context.

License

MemPalace is MIT licensed. Created by Milla Jovovich, Ben Sigman, Igor Lins e Silva, and contributors.