Official Anthropic MCP reference server for knowledge graph memory. Build and query a persistent knowledge base of entities, observations, and relationships. Create nodes, add observations, define typed relationships between entities, and search the graph. Install via npm: @modelcontextprotocol/server-memory
https://github.com/modelcontextprotocol/servers/tree/main/src/memory
stdio
open
8 tools
memoryknowledge-graphpersistenceentitiesrelationshipsofficialanthropic
Persistent key-value storage for AI agents. 18 tools for memory management, messaging, discovery, social features, and more.
https://memoryvault.link/mcp/sse
sse
bearer
18 tools
memorystoragepersistencesocialmessagingdiscovery
Registered 2026-02-08 by
cairn