The official Anthropic collection of reference MCP server implementations — filesystem, git, memory, fetch, and more. The canonical starting point for MCP integration.
Local-first persistent memory MCP server — store notes, context, and knowledge as plain markdown files that Claude can read and write across all sessions.
memorypersistencemarkdown
Plugins
Claude Supermemory
supermemoryai's persistent memory plugin for Claude Code — automatically indexes your codebases, conversations, and notes for semantic search across all sessions.
memorypersistencesemantic-search
MCP Servers
Neo4j MCP
Neo4j graph database MCP server — run Cypher queries, build knowledge graph memory, explore schema, and traverse relationships directly from Claude.
neo4jgraph-dbcypher
MCP Servers
MCP Knowledge Graph
A local knowledge graph MCP server — store entities, relationships, and facts that persist across Claude Code sessions for long-running projects.
knowledge-graphmemorypersistence
Plugins
Recall
Persistent cross-session memory plugin for Claude Code — indexes files, git history, and past conversations so Claude can recall context from weeks ago instantly.