# Knowledge Graph Memory
> An official local memory server that persists entities, relations, and observations as a knowledge graph in a JSONL file and exposes graph operations through MCP tools and a resource.
Canonical: https://www.mcpfolio.com/servers/knowledge-graph-memory
Last updated: 2026-10-28
## Catalog record

- Publisher: Model Context Protocol maintainers
- Categories: search, memory

## Website

https://github.com/modelcontextprotocol/servers/tree/main/src/memory

## Repository

https://github.com/modelcontextprotocol/servers

## Transports

stdio

## Authentication

No external account or credential is documented; graph data is stored locally in the configured memory file.

## Tools

- **create_entities**
- **create_relations**
- **add_observations**
- **delete_entities**
- **delete_observations**
- **delete_relations**
- **read_graph**
- **search_nodes**
- **open_nodes**

## Sources

- [official_tool_reference](https://github.com/modelcontextprotocol/servers/blob/main/src/memory/README.md)
- [official_documentation](https://github.com/modelcontextprotocol/servers/blob/main/src/memory/index.ts)

## Setup

Use the interactive setup panel on [the detail page](https://www.mcpfolio.com/servers/knowledge-graph-memory) to view instructions for each supported client.