Persistent memory MCP server, your AI remembers context across conversations
Visit WebsiteTL;DR - Memory MCP Server
- Persistent memory for AI assistants across conversation sessions
- Stores entities and relationships in a local knowledge graph
- No cloud dependency, data stays on your machine
What Users Say About Memory MCP Server
Memory MCP is Anthropic's reference server for giving agents persistent memory across sessions — a knowledge graph that the agent updates as it works. Users like that it's genuinely free, local, and model-agnostic. The complaints: the graph model is simple (entities + relations + observations) and power users wanting richer memory schemes often graduate to custom solutions.
Highlights
- Official and maintained by Anthropic — free to run locally
- Simple knowledge graph: entities, relations, observations
- Persists state across sessions and agent restarts
- Any MCP-compatible client can read/write the same graph
- Zero API costs — purely local storage
Limitations
- Graph model is simple — not a full vector DB or RAG stack
- No built-in observability for memory drift or conflicting entries
- No UI — you inspect the graph through the agent or raw JSON
- No built-in pruning; old memories accumulate and consume context
- Power users often graduate to custom vector stores for richer recall
Best for: Simple agent workflows that need long-term state — chat assistants, project agents, task managers. The lightweight answer when you don't want to run Pinecone or Qdrant. For production RAG use Supabase vector or Qdrant instead.
Editorial synthesis from industry coverage, product docs, and early user reports
Pros & Cons
Pros
- AI remembers project decisions and preferences between sessions
- Privacy-friendly, no data leaves your machine
Cons
- Memory is local, not shared across devices
- Graph can grow large over time without cleanup
Key Features
Pricing Plans
Open Source
Free
- Full source code access
- Community support
- Self-hosted
What is Memory MCP Server?
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Memory MCP Server FAQ
What does Memory MCP Server do?
How does Memory MCP Server store data?
Is Memory MCP Server free?
What are good use cases for Memory MCP Server?
How do I configure Memory MCP Server?
npx -y @anthropic-ai/memory-mcp to your MCP client config. Optionally set the MEMORY_FILE_PATH environment variable to control where the knowledge graph JSON file is stored. Default location is in the package directory.Source: github.com