io.github.memtomem/memtomem
io.github.memtomem/memtomem · 15 stars · Python · Apache-2.0
MCP server Markdown-first long-term memory for AI agents. Hybrid BM25 + vector search, runs locally.
Install
The repo has no one-line install. Follow its README.
Published as
- PyPI
memtomemstdio
From the server's entry in the official MCP Registry.
Files
memtomem
Markdown-first long-term memory for AI coding agents — your files stay yours, and core usage is hook-free by default.
🚧 Alpha — APIs, defaults, and on-disk config surfaces may still change between
0.xreleases. Feedback and issue reports are especially welcome: Issues · Discussions.
memtomem turns your markdown notes, documents, and code into a searchable knowledge base that any AI coding agent can use. Write notes as plain .md files — memtomem indexes them and makes them searchable by both keywords and meaning.
flowchart LR
A["Your files\n.md .json .py"] -->|Index| B["memtomem"]
B -->|Search| C["AI agent\n(Claude Code, Cursor, etc.)"]
Loading
First time here? Follow the Getting Started guide — you'll have a working setup in under 5 minutes. Claude Code or Codex CLI user? See the Korean vibe-coding quickstart.
Why memtomem?
| Problem | How memtomem solves it |
|---|---|
| AI forgets everything between sessions | Index your notes once, search them in every session |
| Keyword search misses related content | Hybrid search: exact keywords + meaning-based similarity |
| Notes scattered across tools | One searchable index for markdown, JSON, YAML, TOML, Python, JS/TS |
| Vendor lock-in | Your .md files are the source of truth. The DB is a rebuildable cache |
| Hidden automation is hard to reason about | Core memory operations run only when you call them; optional client hooks are explicit, removable integrations |
Quick Start
1. Install
uv tool install 'memtomem[all]' # or: pipx install 'memtomem[all]' mm --version # verify install
[all] bundles the features the sections below describe — ONNX dense embeddings, Korean tokenizer, code chunker, and the Web UI. The Ollama and OpenAI embedding providers need no extra; they work on any install. For a smaller install without those downloads (about 50 MB installed instead of about 340 MB, before any model download), see the minimal install option in the Getting Started guide.
If
mm --versionshows an older version than the latest release right after installing,uvis likely serving cached PyPI metadata — re-run withuv tool install 'memtomem[all]' --refresh, or clear the cache first:uv cache clean memtomem. To upgrade an existing uv tool install, usemm upgraderather than re-runninguv tool install; see the CLI reference for what it preserves and stops.
mm: command not found?uv tool installdrops the shim into~/.local/bin, which isn't on$PATHin fresh shells on macOS/Linux. Runuv tool update-shell, then open a new shell and re-runmm --version.
2. Setup
After upgrading the Claude plugin: re-check
/mcpafter reloading. The plugin launchesmemtomem[onnx]==0.6.8. A manual registration whose launch differs — base-onlymemtomem, or the ONNX launch pinned to an earlier release — no longer matches for deduplication and may expose duplicate tools. Confirm the manual entry's name and scope, then align its launch command with the plugin or remove that redundant registration.
mm init # preset picker, then memory_dir + MCP
The interactive picker starts with three presets — Minimal (BM25, no downloads), English (Recommended) (ONNX multilingual-e5-small + English reranker + auto-discover providers), Korean-optimized (ONNX multilingual-e5-small + kiwipiepy tokenizer, no reranker) — plus an Advanced entry that opens the full 10-step wizard. Preset paths only ask about the memory directory and MCP registration; everything else is set from the preset.
Choose Minimal for the fastest no-download first proof; rerun mm init
later when you are ready to add semantic search.
Indexing vs. discovery (Claude Code): provider memory folders that setup auto-discovers (e.g.
~/.claude/projects/*/memory/) are added to the search index. That is separate from the Web UI's opt-in Context Gateway scan of~/.claude/projects/, which discovers project roots for Skills, Custom Commands, and Subagents — see Configuration → Context Gateway for the distinction and the lossy-slug caveats.
For automation / CI:
mm init --non-interactive # minimal preset, no prompts mm init --preset korean --non-interactive # Korean-optimized bundle, no prompts mm init --advanced # force the full 10-step wizard
See Embeddings for the full model/provider matrix.
3. Verify a complete memory round trip
The first success path does not require an existing notes directory or a connected editor:
mm status mm add "Deployment checklist uses blue-green rollout" --tags ops mm search "blue-green"
mm add writes to your configured user memory directory and indexes the entry immediately. The final command should return the sentence you just added.
Then verify the editor connection:
"Call the mem_status tool"
To bring existing notes into the same index, point mm index at a directory that already exists:
mm index /path/to/your/notes
mm status --json (or --format json) provides the same status as machine-readable output for scripts and CI.
4. Open the Web UI (optional)
mm web # polished dashboard on http://127.0.0.1:8080 mm web -b # run in the background; logs go to ~/.memtomem/logs/web.log mm web status # show pid/port/start time mm web stop # stop the tracked Web UI process mm web --dev # maintainer surface (adds opt-in pages)
mm web shows the polished page set by default. Pass --dev (or set
MEMTOMEM_WEB__MODE=dev in your shell profile) to expose maintainer pages
like Sessions, Working Memory, and Health Report.
Other install options
Minimal (no bundled model, about 50 MB):
uv tool install memtomem # no extras — no local ONNX model, Web UI or Korean tokenizer until you add them; Ollama/OpenAI embeddings still work
Opt in later per-feature: uv tool install --reinstall 'memtomem[onnx,web]' (see the extras table). List every extra you want to keep, because --reinstall replaces the whole set. A plain mm upgrade keeps the extras it detects from the current install, but an explicit mm upgrade --extras list must name the complete set too.
Project-scoped (per-project isolation):
uv add 'memtomem[all]' && uv run mm init # all commands need `uv run` prefix
No install (uvx on demand):
claude mcp add memtomem -s user -- uvx --isolated --from "memtomem[all]==0.6.8" memtomem-server
See MCP Client Setup for OpenCode / Codex / Cursor / Antigravity / Windsurf / Claude Desktop / Gemini CLI / Kimi Code.
Key Features
- Hybrid search — BM25 keyword + dense vector + RRF fusion in one query
- Semantic chunking — heading-aware Markdown, AST-based Python, tree-sitter JS/TS, structure-aware JSON/YAML/TOML
- Incremental indexing — chunk-level SHA-256 diff; only changed chunks get re-embedded
- Namespaces — organize memories into scoped groups with auto-derivation from folder names; review and label them (colour, description) from Settings → Namespaces in the Web UI
- Maintenance — near-duplicate detection, time-based decay, TTL expiration, auto-tagging
- Web UI — visual dashboard for search, sources, tags, timeline, dedup, and more (
mm web --devfor the full maintainer surface) - Context Gateway — keep canonical Skills, Commands, and Subagents in a project or user Store, optionally install reusable assets from a separate Wiki, then push them to supported AI runtimes. See Context Gateway.
- MCP tools —
mem_dometa-tool routes all non-core actions incoremode for minimal context usage - Predictable core — memory operations run on explicit CLI/MCP calls (
mm add,mem_add,mem_index, etc.). Optional client hooks are installed and removed separately rather than being a hidden runtime default. - Scriptable CLI — JSON output for scripts:
--jsononmm status, the write commands (mm add/mm reset/mm purge),mm session start/end/list/events,mm schedule list,mm watchdog status/runandmm doctor, and--format jsononmm searchandmm recall;mm warmuppre-loads local models so the first query skips the cold-start cost - Scheduled jobs —
mm schedule add/list/run-now/delete(ormem_do(action="schedule_*")) for cron-driven compaction, importance decay, dead-link cleanup, and dedup scans - Pinned Context — keep small user/project/agent Markdown blocks ahead of retrieved results with
mm pinned compose - LangGraph Store — optional
MemtomemBaseStoreimplements LangGraph's tuple-namespace long-term-memory contract - Hybrid LangGraph Store —
MemtomemHybridStoreadds dedicated SQLite persistence, BM25/dense/RRF retrieval, TTL, and diagnostics
Ecosystem
| Package | Description |
|---|---|
| memtomem | Core — MCP server, CLI, Web UI, hybrid search, storage |
| Claude Code plugin | Exact-pinned MCP server and seven slash-command workflows |
| Claude Code automation plugin | Optional hooks for prompt-time search and write-time indexing |
| Codex plugin | Exact-pinned MCP server and seven workflows for Codex CLI |
| opencode-memtomem | OpenCode — exact-pinned MCP, commands, read skills, safe permissions |
| Kimi Code skills | Skill bundle for Kimi Code (not a plugin) |
| memtomem-stm | STM proxy — proactive memory surfacing via tool interception |
Documentation
Hosted at memtomem.com — also available as Markdown in this repo. New to memtomem? The guides have a suggested reading order. The table below follows it, with the two runnable examples placed after the first-run guides:
| Guide | Description |
|---|---|
| Getting Started | Install, configure, save and find your first memory |
| 한국어 바이브코딩 빠른 시작 | Claude Code·Codex CLI에서 10~15분 안에 기억 저장·검색 |
| MCP Client Setup | Editor-specific configuration |
| Cross-runtime handoff | Claude Code·Codex CLI·Kimi Code 순차 공동 개발 |
| Use cases | Nine runnable scenarios for multi-tool developers, personal knowledge bases, and teams |
| 프로젝트 업무별 체험 | 개발 작업 인계·제품 의사결정·온보딩: 모델 없는 체험, 기록 양식, 2주 파일럿 |
| Example notebooks and coding-agent sample | Notebooks: start with 00 to recover decisions, code, and settings across 150 synthetic files without a model (Korean); 01–04 teach APIs, 05–06 teach LangGraph. Sample: recover a decision and its ADR source across sessions, with an isolated CLI proof and copyable prompts |
| Core memory tools | Index existing notes, search, and manage memories |
| Data, config & CLI | Export and import, importers, mm config, and the full CLI reference |
| Organization & maintenance | Namespaces, deduplication, decay, tagging, orphan cleanup, and mm doctor |
| Automation | Policies and scheduled jobs |
| Pinned Context | Pinned-first composition, the approval queue, and LangGraph stores |
| Embeddings | ONNX, Ollama, and OpenAI embedding providers |
| LLM Providers | Ollama, OpenAI, Anthropic, and compatible endpoints |
| Configuration | Supported config files, precedence, and MEMTOMEM_* variables |
| Context Gateway | Share Skills, Commands, and Subagents across your AI tools from one Store |
| Multi-device sync | Sync markdown memories across personal devices via a private git repo |
| Operations & troubleshooting | Web UI, privacy audits, diagnostics, and recovery |
| Uninstalling memtomem | Clean removal steps |
| Reference | Complete tool and workflow reference |
Contributing
See CONTRIBUTING.md for setup instructions and the contributor guide.
License
Apache License 2.0. Contributions are accepted under the terms of the Contributor License Agreement.
Facts
- Kind
- MCP server
- Group
- Uncategorized
- Stars
- 15
- License
- Apache-2.0
- Language
- Python
- Last push
- 2026-10-10
- Forks
- 32
- MCP Registry
- io.github.memtomem/memtomem
- Homepage
- memtomem.com
- Topics
- agent, ai, bm25, claude, embedding, knowledge-management, llm, markdown, mcp, memory, python, rag, semantic-search, mcp-server, harness-engineering, harness-framework, agent-harness, agent-memory
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