gannonh/memento-mcp

3.6

If you are the rightful owner of memento-mcp and would like to certify it and/or have it hosted online, please leave a comment on the right or send an email to henry@mcphub.com.

Memento MCP is a scalable, high-performance knowledge graph memory system designed for LLMs, offering semantic retrieval, contextual recall, and temporal awareness.

Tools

Functions exposed to the LLM to take actions

create_entities

Create multiple new entities in your Memento MCP knowledge graph memory system

create_relations

Create multiple new relations between entities in your Memento MCP knowledge graph memory. Relations should be in active voice

add_observations

Add new observations to existing entities in your Memento MCP knowledge graph memory

delete_entities

Delete multiple entities and their associated relations from your Memento MCP knowledge graph memory

delete_observations

Delete specific observations from entities in your Memento MCP knowledge graph memory

delete_relations

Delete multiple relations from your Memento MCP knowledge graph memory

get_relation

Get a specific relation with its enhanced properties from your Memento MCP knowledge graph memory

update_relation

Update an existing relation with enhanced properties in your Memento MCP knowledge graph memory

read_graph

Read the entire Memento MCP knowledge graph memory system

search_nodes

Search for nodes in your Memento MCP knowledge graph memory based on a query

open_nodes

Open specific nodes in your Memento MCP knowledge graph memory by their names

semantic_search

Search for entities semantically using vector embeddings and similarity in your Memento MCP knowledge graph memory

get_entity_embedding

Get the vector embedding for a specific entity from your Memento MCP knowledge graph memory

get_entity_history

Get the version history of an entity from your Memento MCP knowledge graph memory

get_relation_history

Get the version history of a relation from your Memento MCP knowledge graph memory

get_graph_at_time

Get your Memento MCP knowledge graph memory as it existed at a specific point in time

get_decayed_graph

Get your Memento MCP knowledge graph memory with confidence values decayed based on time

Prompts

Interactive templates invoked by user choice

No prompts

Resources

Contextual data attached and managed by the client

No resources

Author

gannonh

Claim Ownership

Verify you have write access to the repository

Version

v0.3.9

Repository

https://github.com/gannonh/memento-mcp

GitHub Stars

179

License

MIT License

Last publish date

2025-05-10

Last update date

2025-08-18

Server configs

in claude desktop

{
  "mcpServers": {
    "memento": {
      "command": "npx",
      "args": ["-y", "@gannonh/memento-mcp"],
      "env": {
        "MEMORY_STORAGE_TYPE": "neo4j",
        "NEO4J_URI": "bolt://127.0.0.1:7687",
        "NEO4J_USERNAME": "neo4j",
        "NEO4J_PASSWORD": "memento_password",
        "NEO4J_DATABASE": "neo4j",
        "NEO4J_VECTOR_INDEX": "entity_embeddings",
        "NEO4J_VECTOR_DIMENSIONS": "1536",
        "NEO4J_SIMILARITY_FUNCTION": "cosine",
        "OPENAI_API_KEY": "your-openai-api-key",
        "OPENAI_EMBEDDING_MODEL": "text-embedding-3-small",
        "DEBUG": "true"
      }
    }
  }
}

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