Mcp Notes

mcp-notes

MCP server for personal knowledge management with semantic search, git versioning, and knowledge graph capabilities.

Prerequisites

• Python 3.12+
• Linux or macOS (uses POSIX file locking via vector-core; not compatible with Windows)
• Qdrant vector database (default: localhost:6333)
• An OpenAI-compatible embedding API (e.g., llama.cpp, Ollama, or any /v1/embeddings endpoint; default: localhost:8080)
• git (must be on PATH for versioning features)

Installation

Requires vector-core.

pip install git+https://github.com/michaelkrauty/vector-core.git@v1.3.0
pip install git+https://github.com/michaelkrauty/mcp-notes.git

Or clone both repos and install locally:

git clone https://github.com/michaelkrauty/vector-core.git
git clone https://github.com/michaelkrauty/mcp-notes.git
pip install -e vector-core/
pip install -e mcp-notes/

Quick Start

# Register with Claude Code:
claude mcp add notes -- mcp-notes

# Or add to your MCP client config (e.g., claude_desktop_config.json):
# {
#   "mcpServers": {
#     "notes": {
#       "command": "mcp-notes",
#       "env": {
#         "VECTOR_QDRANT_URL": "http://localhost:6333",
#         "VECTOR_EMBEDDING_URL": "http://localhost:8080",
#         "VECTOR_EMBEDDING_MODEL": "your-model-name"
#       }
#     }
#   }
# }

Features

• Note Management: CRUD operations on markdown notes with YAML frontmatter
• Semantic Search: Hybrid dense + sparse vector search via Qdrant
• Git Versioning: Automatic commits on changes, full history with --follow
• Wiki Linking: [[uuid]] syntax for inter-note references with backlink tracking
• Tags & Categories: Flexible organization with tag management tools
• Glossary: Shared term definitions with aliases and domains
• Fact Graph: Subject-predicate-object triples with source tracking

Tools (38 total)

Notes (4)

| Tool | Description | |------|-------------| | create_note | Create note with auto-generated UUID | | read_note | Read note by UUID | | update_note | Update title, content, tags, or category | | delete_note | Delete note (keeps git history) |

Search (3)

| Tool | Description | |------|-------------| | search_notes | Hybrid semantic + keyword search with filters | | list_notes | List notes with tag/category filters | | find_similar_notes | Find semantically similar notes |

Versioning (2)

| Tool | Description | |------|-------------| | get_note_history | Git commit history for a note | | restore_note_version | Restore note to previous commit |

Links (1)

| Tool | Description | |------|-------------| | get_note_links | Outgoing, incoming (backlinks), and broken links |

Tags (3)

| Tool | Description | |------|-------------| | list_tags | All tags with note counts | | rename_tag | Rename tag across all notes | | merge_tags | Merge multiple tags into one |

Categories (2)

| Tool | Description | |------|-------------| | list_categories | Category hierarchy with counts | | move_category | Move/rename a category |

Glossary (6)

| Tool | Description | |------|-------------| | add_glossary_entry | Add term with expansion, definition, domain | | lookup_term | Exact lookup by term or alias | | search_glossary | Semantic glossary search | | list_glossary | List entries with optional domain filter | | update_glossary_entry | Modify entry metadata | | delete_glossary_entry | Delete entry |

Facts (11)

| Tool | Description | |------|-------------| | add_fact | Add SPO triple with source tracking | | add_facts_batch | Batch import facts | | update_fact | Update fact metadata | | delete_fact | Delete fact and sources | | query_facts | Query by subject/predicate/object | | get_entity | All facts involving an entity | | list_facts | List fact summaries | | search_facts | Semantic fact search | | index_facts | Index facts for search | | find_connections | BFS graph traversal between entities | | get_neighbors | Immediate entity connections |

Integrity (4)

| Tool | Description | |------|-------------| | get_facts_with_stale_sources | Facts with deleted/modified sources | | get_source_statistics | Source integrity stats | | check_fact_integrity | Check specific fact's sources | | revalidate_fact_sources | Reset sources after verification |

Health (2)

| Tool | Description | |------|-------------| | reindex_notes | Force full reindex | | check_note_health | Validate note structure, find errors |

Data Model

Note

---
id: {uuid}
title: Note Title
created: 2024-01-01T00:00:00Z
modified: 2024-01-05T12:00:00Z
tags: [tag1, tag2]
links: [linked-uuid]
---
Markdown content with [[uuid]] links.

Fact (SPO Triple)

subject: "Ada Lovelace" (type: person)
predicate: "works_at"
object: "Babbage Labs" (type: organization)
context: "as lead engineer"
confidence: 1.0
valid_from/to: date range
sources: [{type: note, id: uuid, location: "paragraph 3"}]

Storage

| Data | Location | |------|----------| | Notes | {NOTES_DIR}/notes/ (default ~/notes/notes/) | | UUID index | {NOTES_DIR}/.index/ | | Vectors | Qdrant collection notes_{hash} | | Git repo | {NOTES_DIR}/.git/ | | Facts & glossary | ~/.local/share/vector-core/ (configurable via VECTOR_SHARED_DATA_DIR) |

NOTES_DIR (default ~/notes) is the base directory. Actual note files live in the notes/ subdirectory within it. The base directory also contains .index/, .git/, and .locks/.

Notes stored as {slug}-{uuid}.md organized by category subdirectories.

Configuration

| Variable | Default | Description | |----------|---------|-------------| | NOTES_DIR | ~/notes | Notes storage directory | | NOTES_GIT_ENABLED | true | Enable git versioning | | NOTES_GIT_USER_NAME | Notes MCP | Git commit author | | NOTES_GIT_USER_EMAIL | notes@localhost | Git commit email | | NOTES_AUTO_INDEX | true | Auto-index on startup | | NOTES_COLLECTION_PREFIX | notes | Qdrant collection prefix |

Plus inherited vector-core settings (VECTOR_QDRANT_URL, VECTOR_EMBEDDING_URL, etc.).

Search Query Syntax

# Filter by tag
tag:project-x

# Exclude a tag
-tag:archived

# Filter by category (exact match)
category:work/projects

# Date filters
after:2024-01-01
before:2024-06-30

# Title search
title:meeting notes

# Combined
project tag:active category:work after:2024-01-01

MCP Resources

Static data endpoints:

• notes://index - Full note index
• notes://tags - All tags with counts
• notes://categories - Category hierarchy
• notes://recent - Last 20 modified notes
• notes://orphans - Notes with no backlinks
• notes://broken-links - Broken reference summary
• notes://parse-errors - Notes that failed to parse

Dependencies

Requires vector-core components:

• EmbeddingClient, GlobalVocabulary (search)
• QdrantStorage (storage)
• GlossaryStore, FactStore (knowledge graph)

External libraries:

• GitPython (versioning)

Source & license

This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: michaelkrauty
• Source: michaelkrauty/mcp-notes
• License: Apache-2.0

Install and usage instructions live in the source repository linked above.