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35.0 pts
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15%
15.0 pts
TransparencySKILL.md, perms, README
15%
15.0 pts
Communityinstalls, verify, response
15%
15.0 pts
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Mnemo MCP Server
mcp-name: io.github.n24q02m/mnemo-mcp
Persistent AI memory with hybrid search and embedded sync. Open, free, unlimited.
<!-- Badge Row 1: Status --> 
<!-- Badge Row 2: Tech --> 
<!-- BEGIN: AUTO-GENERATED-CROSS-PROMO --> <details> <summary><strong>Sister projects from n24q02m</strong> (click to expand)</summary>
| Project | Tagline | Tag |
|---|---|---|
| better-code-review-graph | Knowledge graph for token-efficient code reviews -- semantic search and call-... | MCP |
| better-email-mcp | IMAP/SMTP email for AI agents -- read, send, organize folders, and manage att... | MCP |
| better-godot-mcp | Composite MCP server for Godot Engine -- 17 composite tools for AI-assisted g... | MCP |
| better-notion-mcp | Markdown-first Notion for AI agents -- pages, databases, blocks, and comments... | MCP |
| better-telegram-mcp | Telegram for AI agents -- messages, chats, media, and contacts across both bo... | MCP |
| claude-plugins | Claude Code plugin marketplace for the n24q02m MCP servers -- install web sea... | Marketplace |
| imagine-mcp | Image and video understanding + generation for AI agents -- across Gemini, Op... | MCP |
| jules-task-archiver | Chrome Extension for bulk operations on Jules tasks via batchexecute API -- a... | Tooling |
| mcp-core | Shared foundation for building MCP servers -- Streamable HTTP transport, OAut... | MCP |
| mnemo-mcp | Persistent AI memory with hybrid search and embedded sync. Open, free, unlimi... | MCP |
| qwen3-embed | Lightweight Qwen3 text embedding and reranking via ONNX Runtime and GGUF | Library |
| skret | Secrets without the server. | CLI |
| tacet | TACET: a self-distilling neuro-symbolic cascade that amortises LLM cost in kn... | Tooling |
| web-core | Shared web infrastructure package for search, scraping, HTTP security, and st... | Library |
| wet-mcp | Open-source MCP server for AI agents: web search, content extraction, and lib... | MCP |
</details> <!-- END: AUTO-GENERATED-CROSS-PROMO -->
Table of contents
<a href="https://glama.ai/mcp/servers/n24q02m/mnemo-mcp"> <img width="380" height="200" src="https://glama.ai/mcp/servers/n24q02m/mnemo-mcp/badge" alt="Mnemo MCP server" /> </a>
Roadmap (current = Phase 1 / v1.x)
| Phase | Version | Status | Highlights |
|---|---|---|---|
| Phase 1 | v1.x | Shipped | Typed memory(action="capture") (6 context_types + dedup) -- RRF (k=60) hybrid fusion + cross-encoder rerank + temporal decay -- importance x recency archive policy + restore -- Alembic migrations -- multi-provider LLM dispatch -- plugin trinity (recall-context + memory-commit skills, SessionStart + opt-in PostToolUse hooks) |
| Phase 2 | v1.x+1 | Shipped | LLM-driven compression of older memories + Passport sync (encrypted import/export bundle for cross-machine bootstrap) -- AES-256-GCM + Argon2id, S3 / R2 / B2 / MinIO + GDrive backends, delta-sync with LWW per row |
| Phase 3 | v2.0.0 | Shipped (BREAKING) | Temporal knowledge graph -- bitemporal valid_from / valid_to columns -- entity resolution via embedding KNN -- entity_search / entity_graph / history actions -- KG-aware passport bundle sections -- KG_AUTO_ENABLED opt-in auto-extract on capture |
Features
- Hybrid retrieval -- FTS5 + sqlite-vec, fused via Reciprocal Rank Fusion (k=60), then re-ranked by a configurable rerank chain (
RERANK_MODELS, order = litellm fallback; empty -> local qwen3-reranker) with temporal decay and importance boost - Typed capture --
memory(action="capture")with 6 context_types (conversation/fact/preference/skill/task/decision), embedding-based dedup, and a configurable LLM chain (LLM_MODELS, order = litellm fallback) - Knowledge graph -- Automatic entity extraction and relation tracking; top results boosted by graph proximity
- Importance scoring + archive policy -- LLM-scored 0.0-1.0 importance; soft-archive when
recency_factor * (1 - importance) > 1.0; restore action available - Auto-archive trigger -- Background sweep every Nth capture (default 100) -- no cron required
- STM-to-LTM consolidation -- LLM summarization of related memories in a category
- Duplicate detection -- Warns before adding semantically similar memories
- Zero config -- Built-in local Qwen3 ONNX embedding + reranking, no API keys needed. Optional cloud providers (Jina AI, Gemini, OpenAI, Cohere)
- Multi-machine sync -- JSONL-based merge sync via Google Drive (bundled Desktop OAuth public client)
- Plugin trinity -- Ships
/recall-context+/memory-commitskills and SessionStart + opt-in PostToolUse hooks (see docs/ARCHITECTURE.md) - Proactive memory -- Tool descriptions and skills guide AI to save preferences, decisions, facts at the right moment
- LLM compression -- Per-turn compression via the multi-provider dispatcher targets ~3x token reduction at >=0.9 fact retention; graceful skip when no provider configured (see docs/compression.md)
- Encrypted passport sync -- AES-256-GCM bundles + Argon2id KDF, S3 (R2 / B2 / MinIO) and Google Drive backends, delta-sync with last-write-wins per row (see docs/passport.md). Bootstrap via the
passport-bootstrapskill. - Temporal knowledge graph -- Bitemporal columns (
valid_from/valid_to/superseded_by) on every memory + entity-resolution dedup (embedding KNN at default 0.85 cosine threshold) + audit trail (memory_audittable with prev/new state hashes) + new actions (entity_search/entity_graph/history) + opt-inKG_AUTO_ENABLEDauto-extract on capture. BREAKING for clients that calledmemory.getexpecting historical-inclusive results: passas_offor time-travel; default now filters to current-state (valid_to IS NULL).
Comparison vs. peers
| Feature | mnemo-mcp | Mem0 | Letta | OpenMemory |
|---|---|---|---|---|
| Hybrid retrieval (FTS + vec) | yes (FTS5 + sqlite-vec + RRF) | yes | partial | yes |
| Cross-encoder rerank chain | yes (qwen3 local + Jina + Cohere) | partial (Cohere only) | no | no |
| Temporal decay scoring | yes (exp half-life) | no | no | no |
| Importance boost in rank | yes (LLM 0.0-1.0) | no | no | no |
| Soft-archive + restore policy | yes (importance x recency) | no | no | no |
| Self-hostable (single SQLite file) | yes (zero ext deps) | partial (cloud-first) | yes (Postgres) | yes (Postgres + Qdrant) |
| Multi-provider LLM dispatch | yes (LLM_MODELS chain, any litellm provider) | partial | yes | partial |
| Plugin trinity (skills + hooks) | yes (recall-context + memory-commit) | n/a | n/a | n/a |
| Multi-machine sync | yes (GDrive bundled OAuth) | yes (cloud) | n/a | n/a |
| E2E-encrypted passport sync | yes (AES-256-GCM + Argon2id, S3 + GDrive) | no | no | no |
| LLM compression on capture | yes (multi-provider, ~3x at >=0.90 retention) | no | no | no |
| Backend-pluggable sync architecture | yes (S3 / R2 / B2 / MinIO + GDrive) | no | no | no |
Bitemporal valid_from / valid_to queries | yes (as_of time-travel) | no | partial (events only) | no |
| Entity resolution via embedding KNN | yes (cosine threshold tunable) | no | no | no |
| Audit trail with state hashes | yes (memory_audit table) | no | no | no |
Status
2026-05-02 -- Architecture stabilization update
>
Past months saw significant churn around credential handling and the daemon-bridge auto-spawn pattern. This caused multi-process races, browser tab spam, and inconsistent setup UX across plugins. The architecture is now stable: 2 clean modes (stdio + HTTP), no daemon-bridge layer, no auto-spawn from stdio.
>
Apologies for the instability period. If you encountered issues with prior versions, please update to the latest release and follow the current setup docs -- most prior workarounds are no longer needed.
>
Related plugins from the same author: - wet-mcp -- Web search + content extraction - imagine-mcp -- Image/video understanding + generation - better-notion-mcp -- Notion API - better-email-mcp -- Email management - better-telegram-mcp -- Telegram - better-godot-mcp -- Godot Engine - better-code-review-graph -- Code review knowledge graph
>
All plugins share the same architecture -- install once, learn pattern transfers.
Documentation
Full docs at [mcp.n24q02m.com/servers/mnemo-mcp/setup/](https://mcp.n24q02m.com/servers/mnemo-mcp/setup/):
- Setup -- install methods for Claude Code, Codex, Gemini CLI, Cursor, Windsurf, mcp.json
- Modes overview -- stdio / local-relay / remote-relay / remote-oauth
- Multi-user setup -- per-JWT-sub credential model
Install with AI agent -- paste this to your AI coding agent:
Install MCP server mnemo-mcp following the steps at https://raw.githubusercontent.com/n24q02m/claude-plugins/main/plugins/mnemo-mcp/setup-with-agent.mdTools
15 MCP tools, 17 memory actions. The memory surface is exposed both as 11 specialized single-purpose tools and a legacy memory dispatcher (same actions), plus config, help, and config__open_relay:
| Tool | Actions | Description |
|---|---|---|
add_memory, search_memory, list_memories, update_memory, delete_memory, export_memories, import_memories, memory_stats, restore_memory, archived_memories, consolidate_memories | (one action each) | Specialized single-purpose memory tools -- the recommended surface |
memory (legacy dispatcher) | add, capture, search, list, update, delete, export, import, stats, restore, archived, archive_now, consolidate, compress, entity_search, entity_graph, history | Core CRUD + typed capture (6 context_types) + hybrid search (RRF + rerank + temporal decay) + import/export + soft-archive + restore + on-demand archive sweep + LLM consolidation + LLM compression + temporal KG (entity search / graph / history) |
config | status, sync, set, warmup, setup_sync, setup_status, setup_start, setup_skip, setup_reset, setup_complete, setup_relay, sync_now, export_passport, import_passport | Server status, trigger sync, update settings, pre-download embedding model, authenticate sync provider, manage HTTP setup form lifecycle, passport export/import |
help | topic="memory" or topic="config" | Full documentation for any tool |
config__open_relay | (HTTP relay mode) | Open the zero-config relay setup form (registered via mcp-core) |
Plugin trinity (Claude Code marketplace install):
| Component | Trigger | Purpose |
|---|---|---|
mnemo:recall-context skill | session start, before significant decisions, "what do I know about X?" | Pulls cwd / topic-relevant memories with context_type filtering |
mnemo:memory-commit skill | "remember this" / "save this" / "ghi nho" / "luu lai" | Typed manual capture with context_type decision tree |
mnemo:knowledge-audit skill | periodic / "audit memory" | Find duplicates, contradictions, stale entries; consolidate |
mnemo:session-handoff skill | end of session | Capture decisions / preferences / corrections / conventions / open questions |
| SessionStart hook | every session init | Non-blocking nudge to invoke recall-context |
| PostToolUse hook (opt-in) | CAPTURE_AUTO_ENABLED=true | Hint memory-commit after Write/Edit of CLAUDE.md / AGENTS.md / ARCHITECTURE.md / docs/*.md |
MCP Resources
| URI | Description |
|---|---|
mnemo://stats | Database statistics and server status |
MCP Prompts
| Prompt | Parameters | Description |
|---|---|---|
save_summary | summary | Generate prompt to save a conversation summary as memory |
recall_context | topic | Generate prompt to recall relevant memories about a topic |
Security
- Graceful fallbacks -- Cloud → Local embedding, no cross-mode fallback
- Sync token security -- OAuth tokens stored at
~/.mnemo-mcp/tokens/with 600 permissions - Input validation -- Sync provider, folder, remote validated against allowlists
- Error sanitization -- No credentials in error messages
Build from Source
git clone https://github.com/n24q02m/mnemo-mcp.git
cd mnemo-mcp
uv sync
uv run mnemo-mcpTrust Model
This plugin implements TC-Local (machine-bound, single trust principal). The mode/storage/encryption breakdown below is the full classification.
| Mode | Storage | Encryption | Who can read your data? |
|---|---|---|---|
| stdio (default) | ~/.mnemo-mcp/config.json | AES-GCM, machine-bound key | Only your OS user (file perm 0600) |
| HTTP self-host | Same as stdio | Same | Only you (admin = user) |
HTTP multi-user remote (PUBLIC_URL) | Per-JWT-sub credential store | AES-GCM | Only the authenticated user (per-sub isolation) |
License
MIT -- See LICENSE.