Servers
io.github.modelcontextprotocol/server-memory

Memory

io.github.modelcontextprotocol/server-memory · v2025.8.4

stdio

Reference knowledge-graph memory server. Persists entities, relations and observations so an agent can remember facts across conversations.

reference memory knowledge-graph official

Claude Code

claude mcp add server-memory -- npx -y @modelcontextprotocol/server-memory

mcpServers JSON (Claude Desktop, Cursor, Windsurf, VS Code)

{
  "mcpServers": {
    "server-memory": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-memory"
      ]
    }
  }
}

Tools (9)

create_entitiescreate_relationsadd_observationsdelete_entitiesdelete_observationsdelete_relationsread_graphsearch_nodesopen_nodes

server.json manifest

{
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json",
  "_meta": {
    "io.mcpregistry/license": "MIT",
    "io.mcpregistry/tags": [
      "reference",
      "memory",
      "knowledge-graph",
      "official"
    ],
    "io.mcpregistry/tools": [
      "create_entities",
      "create_relations",
      "add_observations",
      "delete_entities",
      "delete_observations",
      "delete_relations",
      "read_graph",
      "search_nodes",
      "open_nodes"
    ],
    "io.mcpregistry/transport": "stdio"
  },
  "description": "Reference knowledge-graph memory server. Persists entities, relations and observations so an agent can remember facts across conversations.",
  "name": "io.github.modelcontextprotocol/server-memory",
  "packages": [
    {
      "environmentVariables": [],
      "identifier": "@modelcontextprotocol/server-memory",
      "registryType": "npm",
      "transport": {
        "type": "stdio"
      },
      "version": "2025.8.4"
    }
  ],
  "repository": {
    "source": "github",
    "url": "https://github.com/modelcontextprotocol/servers"
  },
  "title": "Memory",
  "version": "2025.8.4"
}