Memento MCP

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A scalable knowledge graph memory system for LLMs with semantic retrieval and temporal awareness, using Neo4j as a backend.

Install

How to run this server

[ { "cmd": "npx -y @smithery/cli", "imports": [] } ]

server path: memento-mcp

Tools

What this server exposes

search_nodes

Search for entities in the knowledge graph using semantic similarity

open_nodes

Retrieve detailed information about specific entities by name

delete_nodes

Remove entities and their associated relations from the knowledge graph

add_observations

Add new observations to existing entities in the knowledge graph

delete_observations

Remove specific observations from entities in the knowledge graph

create_entities

Create new entities in the knowledge graph with associated observations

add_relations

Create directed relations between entities with optional metadata

Configuration

Environment & auth

authnone

envOPENAI_API_KEY

Resources