Memorius

Universal memory vault for any AI agent.

🧠 Works with Claude Code, Codex CLI, Gemini CLI, OpenClaude, OpenCode, Pi, and any MCP-compatible agent.

🌐 Landing page: https://dream-pixels-forge.github.io/memorius/

If you find this project useful, leaving a star ⭐ on the repository is the best way to support my work!

Why Memorius?

Most AI memory tools lock you into one agent ecosystem. Memorius is agent-agnostic by design — the same memory vault works whether you use Claude Code, Codex CLI, Gemini CLI, or any MCP-compatible agent. No vendor lock-in.

Feature	Memorius	Others
Agent support	7 agents (auto-detected)	Usually 1-3
Protocol	Open MCP standard	Proprietary plugins
Memory hierarchy	Vault → Shelf → Folder → Note	Flat
Temporal decay	✅ Ebbinghaus forgetting curve	❌
Knowledge graph	✅ Auto-linked memories	❌
Fact-checking	✅ Contradiction detection	❌
Obsidian integration	Native import/export	❌
Self-hosted	✅ No cloud dependency	Often SaaS
Open source	✅ MIT license	Varies

pip install memorius

REST API server is included by default — fastapi, uvicorn, pydantic, and sse-starlette are now core dependencies. No extra [rest] install flag needed.

Quick Start

# Initialize a vault
memorius init

# Store a memory
memorius store "The sky is blue because Rayleigh scattering scatters shorter wavelengths more" --vault main --shelf science --folder physics

# Semantic search
memorius search "why is the sky blue"

# Mine memories from a conversation
memorius mine transcript.txt --vault conversations

# Check status
memorius status

# Write a diary entry
memorius diary --session "session-001" --title "Research findings"

Architecture

┌────────────────────────────────────────────────────────────┐
│                       Memorius                             │
├────────────────────────────────────────────────────────────┤
│  CLI        memorius init | store | search | mine | ...    │
│  MCP        JSON-RPC protocol server (stdin/stdout)        │
│  REST       FastAPI HTTP server                 │
│  Hooks      Auto-detect: Claude Code, Codex, Gemini, ...  │
│  Obsidian   Import / export notes from Obsidian vaults     │
├────────────────────────────────────────────────────────────┤
│  Vault Engine                                              │
│  ├── ChromaStore    Vector search (ChromaDB)               │
│  ├── SQLiteStore    Metadata & hierarchy (SQLite)          │
│  └── Embeddings     Pluggable providers (ONNX / SF / OA)   │
├────────────────────────────────────────────────────────────┤
│  Vault  >  Shelf  >  Folder  >  Note  hierarchy            │
│  Diaries          Session diary entries                    │
│  Mine             Extract memories from transcripts        │
├────────────────────────────────────────────────────────────┤
│  Plugin Gen    →  Generate per-agent plugins               │
│  Normalizers   →  Import Discord/Telegram/WhatsApp/etc     │
│  Obsidian      →  Bidirectional vault sync                 │
└────────────────────────────────────────────────────────────┘

Configuration

Config lives at ~/.memorius/config.yaml (auto-created on memorius init):

storage:
  path: ~/.memorius/data

embeddings:
  provider: chroma-default  # chroma-default | sentence-transformers | openai
  model: all-MiniLM-L6-v2

vault:
  default: main

server:
  mcp_port: 8910
  rest_port: 8912
  host: 127.0.0.1

Environment variable overrides:

Variable	Overrides
`MEMORIUS_STORAGE_PATH`	`storage.path`
`MEMORIUS_EMBEDDINGS_PROVIDER`	`embeddings.provider`
`MEMORIUS_DEFAULT_VAULT`	`vault.default`
`MEMORIUS_MCP_PORT`	`server.mcp_port`
`MEMORIUS_REST_PORT`	`server.rest_port`
`MEMORIUS_HOST`	`server.host`
`MEMORIUS_OPENAI_API_KEY`	`embeddings.openai.api_key`

Embedding Providers

Provider	Requirement	Quality
`chroma-default`	ChromaDB (bundled ONNX)	Good (384d)
`sentence-transformers`	`pip install memorius[local-embeddings]`	Better (768d+)
`openai`	`OPENAI_API_KEY` env var	Best (1536d)

CLI Reference

Core commands

memorius init                Initialize a new vault
memorius status              Show vault status
memorius store <text>        Store a memory
  --vault, -v                  Vault name (default: main)
  --shelf, -s                  Shelf name (default: default)
  --folder, -f                 Folder name (default: default)
  --note, -n                   Note name (default: default)
memorius search <query>      Semantic search
  --vault, -v                  Filter by vault
  --shelf, -s                  Filter by shelf
  --n                          Max results (default: 10)
memorius mine <file|text>    Extract memories from transcript
  --vault, -v                  Target vault (default: main)
memorius diary <session>     Write a diary entry
  --title, -t                  Entry title
  --summary, -s                Entry summary
  --vault, -v                  Vault name (default: main)
memorius diaries              List recent diary entries
memorius ls                   Explore vault hierarchy
memorius consolidate         Merge duplicate memories
  --vault                      Filter by vault
  --threshold                  Similarity threshold 0-1 (default: 0.80)
  --dry-run                    Preview without changes
memorius extract <file|text> Extract memories from conversation (LLM)
  --vault                      Target vault (default: main)
  --shelf                      Target shelf (default: extracted)
  --backend                    LLM backend: auto|openai|ollama|regex
memorius factcheck <stmt>    Fact-check against stored memories
  --vault                      Filter by vault
memorius context <query>     Get formatted memory context for injection
  --vault                      Filter by vault
  --max                        Max items (default: 5)
memorius profile <session>   Build session memory profile
  --vault                      Vault name (default: main)
memorius stats               Show vault + memory + graph statistics
memorius serve               Start MCP server (stdio)
memorius serve-rest           Start REST API server
memorius --version            Show version
memorius config               Show current configuration

Obsidian integration

memorius obsidian list                Explore vault structure
  --vault, -v                           Path to Obsidian vault directory
                                        (default: $OBSIDIAN_VAULT_PATH or
                                         ~/Documents/Obsidian Vault)

memorius obsidian import              Import Obsidian notes as memorius memories
  --vault, -v                           Path to Obsidian vault
  --target-vault                        Target memorius vault (default: main)
  --target-shelf                        Target memorius shelf (default: obsidian)
  --tag                                 Only import notes with this tag
  --dry-run                             Preview without importing

memorius obsidian export              Export memorius memories as Obsidian notes
  --vault, -v                           Path to Obsidian vault
  --source-vault                        Source memorius vault (default: main)
  --source-shelf                        Filter by shelf (default: all)
  --dry-run                             Preview without exporting

Import preserves the file hierarchy: vault/Subfolder/note.md maps to vault/Subfolder/vault > shelf > folder > note. YAML frontmatter is parsed and stored as memory attributes.

MCP Protocol

MCP is the primary interface for AI agents to interact with Memorius. Connect any MCP-compatible client by pointing it at the MCP server:

{
  "mcpServers": {
    "memorius": {
      "command": "memorius",
      "args": ["serve"]
    }
  }
}

Available MCP tools:

Tool	Description
`memorius_status`	Memory vault status
`memorius_store`	Store content in vault/shelf/folder/note hierarchy
`memorius_search`	Semantic search across vault
`memorius_mine`	Extract memories from conversation
`memorius_diary_write`	Write session diary entry
`memorius_diary_list`	List diary entries
`memorius_vault_ls`	Browse vault hierarchy
`memorius_consolidate`	Merge duplicate memories, extract insights
`memorius_extract`	Extract structured memories from conversation (LLM)
`memorius_factcheck`	Fact-check a statement against stored memories
`memorius_context`	Get formatted memory context for injection
`memorius_session_profile`	Build session memory profile for inheritance
`memorius_graph_stats`	Knowledge graph statistics
`memorius_memory_stats`	Memory tracking statistics

Agent Skill Installation

Memorius ships with a ready-to-use agent skill (skills/memorius/SKILL.md) for agents that support the Hermes Agent skill format. The skill provides auto-capture rules, smart context injection, session diary templates, and workflow patterns — so agents can use memorius proactively without being told.

Skill Structure

skills/
  memorius/
    SKILL.md              # Full skill definition (auto-capture, context injection, diary rules)
    README.md             # Quick command reference
    .memorius_version     # Version tracker

Installing for Hermes Agent

The skill is designed for Hermes Agent — copy it into your Hermes skills directory:

# Copy the skill
cp -r skills/memorius ~/.hermes/skills/

# Verify it's loaded
hermes skills list | grep memorius

Once installed, Hermes will automatically detect it and follow the skill's workflows.

Installing for Other Agents

Agents that don't use the Hermes skill format can still use memorius via MCP or CLI:

Agent	Install Command
Claude Code	`claude mcp add memorius -- memorius serve`
Codex CLI	`codex mcp add memorius -- memorius serve`
Gemini CLI	`gemini mcp add memorius $(which memorius) serve`
Cursor	Add to `.cursor/mcp.json`: `{"mcpServers": {"memorius": {"command": "memorius", "args": ["serve"]}}}`
Aider	`aider --mcp-servers memorius=memorius serve`
Continue	Add memorius to `.continue/config.json` MCP servers
OpenClaw	`openclaw mcp set memorius '{"command":"memorius","args":["serve"]}'`

See manifest.yaml for the full list of supported agents and their install commands.

Copying the SKILL.md file directly may also work for agents with their own skills directory (e.g. ~/.claude/skills/, ~/.codex/skills/) — check your agent's documentation.

REST API

The REST server is always available (no extra install flags needed):

memorius serve-rest

Starts a FastAPI server on http://127.0.0.1:8912 by default.

Method	Path	Description
GET	`/health`	Health check
GET	`/status`	System status
GET	`/stats`	Full vault + memory + graph stats
POST	`/store`	Store a memory
POST	`/search`	Semantic search
POST	`/mine`	Extract memories from transcript
POST	`/diary`	Write diary entry
GET	`/vault`	Browse vault hierarchy
GET	`/diaries`	List recent diary entries
POST	`/consolidate`	Merge duplicate memories
POST	`/extract`	Extract memories from conversation (LLM)
POST	`/factcheck`	Fact-check statement against vault
POST	`/context`	Get formatted memory context for injection
GET	`/obsidian`	List notes in Obsidian vault
POST	`/obsidian/import`	Import Obsidian notes as memories
POST	`/obsidian/export`	Export memories as Obsidian notes

Agent Hooks

Memorius includes universal agent lifecycle hooks — auto-detecting, agent-agnostic, and framework-free. Hook scripts are generated per agent:

memorius-plugin-gen init
# Edit universal-manifest.yaml
memorius-plugin-gen generate

Supported agents

Agent	Hook protocol	Events
Claude Code (Anthropic)	`stop_hook_active` / `precompact`	stop, precompact, session_start
Codex CLI (OpenAI)	`session_id` + `context_dir`	session_start, session_stop
Gemini CLI (Google)	`conversation_id` + `extensions`	stop, session_start
OpenClaw	`openclaw` marker in payload	stop, session_stop, precompact, session_start
OpenCode (anomalyco/sst)	`provider` dict + `openCodeVersion`	stop, session_stop, session_start, precompact
Pi (kachow-compatible)	`event` in Pi event set	session_start, session_shutdown, pre_compact, tool_call, turn_end
OpenClaude	`OpenClaude` marker in payload	stop, precompact, session_start

Auto-detection (no config needed)

Hooks are auto-detected from stdin — no --agent flag required. Just pipe agent hook JSON to the memorius hook engine and it figures out which agent sent the event:

# Hook engine auto-detects the agent
cat hook-payload.json | memorius-hook mine
cat hook-payload.json | memorius-hook diary

You can also force a specific agent with --agent:

memorius-hook mine --agent claude-code
memorius-hook diary --agent opencode

Detection priority (most-specific first): OpenClaude → Claude Code → Codex → Gemini CLI → OpenClaw → OpenCode → Pi → Generic

Plugin Generator (optional)

memorius-plugin-gen list          # Show supported agents
memorius-plugin-gen init          # Create universal-manifest.yaml
memorius-plugin-gen generate      # Generate plugins for all agents

Conversation Normalizers (optional)

memorius-normalize input.json     # Auto-detect and normalize
memorius-normalize input.json --format discord

Supported formats: Discord, Telegram, WhatsApp, generic JSON, plain text.

Development

git clone https://github.com/Dream-Pixels-Forge/memorius.git
cd memorius
python3 -m venv .venv
source .venv/bin/activate
pip install -e ".[dev]"

# Run tests
pytest

# Run end-to-end
memorius init
memorius store "test memory"
memorius search "test"
memorius serve-rest         # REST server available out of the box

License

MIT

Name		Name	Last commit message	Last commit date
Latest commit History 55 Commits
.github/workflows		.github/workflows
.prides		.prides
docs		docs
examples		examples
hooks		hooks
memorius		memorius
skills/memorius		skills/memorius
tests		tests
.gitignore		.gitignore
CHANGELOG.md		CHANGELOG.md
LICENSE		LICENSE
MANIFEST.in		MANIFEST.in
README.md		README.md
manifest.yaml		manifest.yaml
memorius.jpg		memorius.jpg
pyproject.toml		pyproject.toml

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Repository files navigation

Memorius

Why Memorius?

Quick Start

Architecture

Configuration

Embedding Providers

CLI Reference

Core commands

Obsidian integration

MCP Protocol

Agent Skill Installation

Skill Structure

Installing for Hermes Agent

Installing for Other Agents

REST API

Agent Hooks

Supported agents

Auto-detection (no config needed)

Plugin Generator (optional)

Conversation Normalizers (optional)

Development

License

About

Uh oh!

Releases 5

Packages

Uh oh!

Contributors

Uh oh!

Languages

Folders and files

Latest commit

History

Repository files navigation

Memorius

Why Memorius?

Quick Start

Architecture

Configuration

Embedding Providers

CLI Reference

Core commands

Obsidian integration

MCP Protocol

Agent Skill Installation

Skill Structure

Installing for Hermes Agent

Installing for Other Agents

REST API

Agent Hooks

Supported agents

Auto-detection (no config needed)

Plugin Generator (optional)

Conversation Normalizers (optional)

Development

License

About

Topics

Resources

License

Security policy

Uh oh!

Stars

Watchers

Forks

Releases 5

Packages 0

Uh oh!

Contributors

Uh oh!

Languages

Packages