Memory (Reference)

Memory (Reference) MCP Server

Knowledge graph-based persistent memory system.

What is an MCP Server?⁠

Characteristics

Attribute	Details
Docker Image	mcp/memory⁠
Author	modelcontextprotocol⁠
Repository	https://github.com/modelcontextprotocol/servers⁠
Dockerfile	https://github.com/modelcontextprotocol/servers/blob/2025.4.24/src/memory/Dockerfile⁠
Docker Image built by	Docker Inc.
Docker Scout Health Score
Verify Signature	COSIGN_REPOSITORY=mcp/signatures cosign verify mcp/memory --key https://raw.githubusercontent.com/docker/keyring/refs/heads/main/public/mcp/latest.pub
Licence	MIT License

Available Tools (9)

Tools Details

Tool: add_observations

Add new observations to existing entities in the knowledge graph

Tool: create_entities

Create multiple new entities in the knowledge graph

Tool: create_relations

Create multiple new relations between entities in the knowledge graph. Relations should be in active voice

Tool: delete_entities

Delete multiple entities and their associated relations from the knowledge graph

Tool: delete_observations

Delete specific observations from entities in the knowledge graph

Tool: delete_relations

Delete multiple relations from the knowledge graph

Tool: open_nodes

Open specific nodes in the knowledge graph by their names

Tool: read_graph

Read the entire knowledge graph

Tool: search_nodes

Search for nodes in the knowledge graph based on a query

Use this MCP Server

{
  "mcpServers": {
    "memory": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-v",
        "/local-directory:/local-directory",
        "mcp/memory"
      ]
    }
  }
}

Why is it safer to run MCP Servers with Docker?⁠