Mem0 MCP (official)
https://github.com/mem0ai/mem0-mcp
Mem0's managed cloud API exposed as MCP tools. Semantic search + CRUD on memories scoped by user / agent / session. Cloud-hosted MCP endpoint — no local infrastructure required.
At a glance
- Type
- Hybrid vector + graph via cloud API
- Tier
- T1
- Section
- Claude Code memory mechanisms
- Created
- 2025-02
- Latest release
- no releases
- License
- Apache-2.0
- GitHub
- 650★ +10/mo Python
- Pricing
- free tier (Hobby: 10K memories 1K retrieval/mo); Starter $19/mo; Pro $249/mo (graph memory included); Enterprise custom
- Funding
- not applicable — not commercial
Taxonomy
- storage
- vector
- retrieval
- similarity
- persistence
- long-term
- update
- extraction
- unit
- fact
- governance
- opaque
- conflict
- llm-arbitrate
When to use
Optimised for: Claude-Code-native + MCP-portable memory
Anti-fit: not for non-Claude-Code clients (some are MCP-portable)
Pros & cons
Pros
MCP server that brings the Mem0 layer into any MCP-compatible agent — including Claude Code — without rewriting code.
Cons
Inherits Mem0's tradeoffs (extraction approach, opaque eviction); MCP surface adds one more network hop on every memory call.
Claims & capabilities
v0.2.1 (Dec 2025). PyPI: mem0-mcp-server .
Technical surface
- API surface
- MCP (stdio); add_coding_preference / search_coding_preferences / get_all_coding_preferences
- Backend storage
- hybrid
- Deployment
- cloud API (managed by Mem0); MCP local install pointing to Mem0 cloud
- Embedding model
- multiple supported
- Multi-tenancy
- namespace
- MCP
- native (first-party)
- A2A
- not supported
- OpenTelemetry
- searched not found
Similar systems
Other claude code memory mechanisms in the catalog, ranked by inbound references.
- Official MCP Memory server T1
Knowledge-graph-based persistent memory MCP server — the canonical reference implementation. npx -y @modelcontextprotocol/server-memory ; configurable via MEMORY_FILE_PATH .
- Anthropic Auto Dream T1
Background sub-agent in Claude Code that periodically scans ~/.claude/projects/<project>/memory/ + recent JSONL transcripts via grep, prunes stale notes, deduplicates, resolves contradictions, converts relative dates to absolute timestamps, and rewrites MEMORY.md (kept under 200 lines). Triggers automatically when 24+ hours elapsed AND 5+ sessions completed; manually via /dream.
- Claude Code auto-memory T1
Persistent file-based memory at ~/.claude/projects/<project>/memory/ with a MEMORY.md index plus typed memory files (user / feedback / project / reference). Loaded into context across sessions.
- claude-brain T2
Claude Code plugin packaging of Memvid (see Dedicated memory layers). Wraps the Memvid .mv2 single-file store as a slash-command-installable plugin so per-project memory becomes a git-committable file inside the repo.
- Claude-CursorMemoryMCP T2
FastAPI server. RBAC + API-key auth, encryption, backup/recovery, embedding pipeline with deduplication. Only server in this list with role-based access control over pgvector.
- claude-mem T1
Hooks into Claude Code's session lifecycle; compresses tool outputs into ~500-token observations via Claude's agent SDK. SQLite + FTS5 with optional Chroma vector. "Endless Mode" compresses in-flight to extend session length. Captures what the agent did , not just what the user typed.
Related systems
References (3)
- Anthropic Claude (foundation models) depends on at runtime — adjacent-infrastructure cell: requires Claude Code or MCP client; BYO storage
- Mem0 builds on — Mem0's managed cloud API exposed as MCP tools.
- Model Context Protocol (MCP spec) depends on at runtime — hat brings the Mem0 layer into any MCP-compatible agent — including Claude Code — without rewriting code.