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Memory MCP

v2025.8.4 changelog · 4

io.github.modelcontextprotocol/server-memory

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

transport:stdio runtime:npm license:MIT tools:9
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Target client

run in your project directory 

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

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

create_entities Mutating

create entities

create_relations Mutating

create relations

add_observations Mutating

add observations

delete_entities Mutating

delete entities

delete_observations Mutating

delete observations

delete_relations Mutating

delete relations

read_graph Read-only

read graph

search_nodes Read-only

search nodes

open_nodes

open nodes

All 9 tools, one page each

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.