Build a Local Knowledge Graph from Markdown
Gives an AI persistent memory as local Markdown files, with a knowledge graph and semantic search.
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Why it matters
Establish persistent memory for LLM interactions by building a semantic knowledge graph from your Markdown files. This system enables natural language querying and bidirectional reading/writing between humans and AI.
Outcomes
What it gets done
Ingest and index Markdown files into a semantic graph.
Enable natural language search and retrieval of information.
Facilitate bidirectional knowledge exchange with LLMs.
Manage multiple knowledge projects and synchronize across devices.
Install
Add it to your toolbox
Run in your project directory:
curl -fsSL https://spark.entire.vc/get/vb-basic-memory | bash Capabilities
Tools your agent gets
Create or update notes in the knowledge base
Read notes by name or permalink
Read raw file content including text, images, and binary files
View notes as formatted artifacts
Edit notes step by step
Move notes while preserving database integrity
Delete notes from the knowledge base
Navigate the knowledge graph through memory:// URLs
Overview
Basic Memory MCP Server
A local-first MCP server that gives an AI persistent memory as Markdown files with Observations, Relations, semantic search, and progressive tool discovery. Use when an AI assistant needs to remember project context and decisions across sessions, stored as portable Markdown rather than locked chat history.
What it does
A local-first MCP server that gives an AI persistent memory as plain Markdown files instead of ephemeral chat history: both the human and the AI read and write the same files, and sync keeps them in step. Each file is an Entity with Observations (bracketed-category facts, e.g. [method], [tip], optional #tags and parenthetical context) and Relations (wiki-style links using single-token or quoted multi-word relation types, e.g. requires [[Burr Grinder]]) that together form a traversable knowledge graph the LLM can follow link by link across sessions - a bare - [[Target]] link or a prose mention indexes as links_to. On top of that graph, semantic search finds notes by meaning rather than keyword, and every one of its MCP tools carries behavior-hint annotations (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) so an agent can pick the right tool without burning context on trial and error. Tools cover content (write_note, read_note, edit_note, move_note, delete_note, read_content, view_note), search and discovery (search, search_notes, recent_activity, list_directory), the knowledge graph itself (build_context for navigating memory:// URLs, canvas for Obsidian canvas generation), project management, and a schema system (schema_infer, schema_validate, schema_diff) that can infer, validate, and diff the structure of a knowledge base. Recent additions include hybrid full-text-plus-vector semantic search (FastEmbed embeddings, on SQLite or Postgres), per-project cloud routing so individual projects can route through the cloud while others stay local, and edit_note auto-creating a missing note on append/prepend while write_note guards against accidental overwrites.
When to use - and when NOT to
Use it when an AI assistant needs to remember project context, decisions, or running notes across sessions instead of starting from zero each time - it works with Claude Desktop, Claude Code, Codex, Cursor, VS Code, ChatGPT (via OpenAI-compatible search/fetch Custom GPT actions), Obsidian (reads/writes the same Markdown directly, no separate setup), or any other MCP-speaking client. The local install is free forever, licensed under AGPL-3.0, keeps every file on disk, and works air-gapped; an optional hosted Cloud tier (from $15/mo, locked for the subscription's life, with a 7-day free trial) adds cross-device sync, mobile/web access, and automatic snapshots/backups for teams or multi-device use, but is never required - both paths run the identical open-source engine on the identical Markdown files, with no lock-in either way. Beyond the core MCP server, the same repository ships official host-native agent packages: a Claude Code plugin (session-start briefings, pre-compaction checkpoints, /basic-memory:remember/:share/:status commands) that requires the MCP server connected first as a hard prerequisite, shared framework-agnostic SKILL.md files, a Hermes plugin, and an OpenClaw plugin.
Inputs and outputs
{
"mcpServers": {
"basic-memory": {
"command": "uvx",
"args": ["basic-memory", "mcp"]
}
}
}
Input is natural-language requests like "make a note about X" or "what have I been working on this week"; output is a Markdown file with frontmatter (title, type, permalink, tags), an Observations section, and a Relations section, written directly into the configured notes directory (~/basic-memory by default for local installs). All MCP tools default to text output, with output_format="json" available for structured responses. The CLI covers project management (project list/add/set-cloud/set-local), health checks (status, doctor for file-to-database consistency), and imports from Claude conversations, ChatGPT, or a memory JSON export.
How to install
Local install requires Python via uv: uv tool install basic-memory, then add the server to your client's MCP config as shown above (or claude mcp add basic-memory -- uvx basic-memory mcp for Claude Code). CLI installs (via uv tool or Homebrew) auto-update every 24 hours by default; bm update triggers a manual check, and auto-update can be disabled in ~/.basic-memory/config.json. Logging defaults to a rotating local file (~/.basic-memory/basic-memory.log, 10MB/10-day retention) rather than stdout, since the MCP server's stdout is reserved for JSON-RPC. Telemetry is minimal and anonymous (cloud-promo impressions and login outcomes only - never file contents, note titles, or PII) and can be fully disabled with export BASIC_MEMORY_NO_PROMOS=1.
Integrations
Works as an MCP server for Claude Desktop, Claude Code, Codex CLI, Cursor, VS Code, and any other MCP-speaking client (stdio or HTTPS transport), plus a ChatGPT Custom GPT action and direct, setup-free interoperability with Obsidian over the same Markdown files. The optional Cloud tier is built on WorkOS AuthKit, Neon Postgres, and Tigris S3, and syncs to local installs via rclone with conflict resolution.
Who it's for
Developers and teams who want their AI assistant to retain project context, decisions, and running notes across sessions and tools, stored as portable, human-editable Markdown rather than locked in a proprietary chat history or a hosted vector database.
Source README
Skip the install - try Basic Memory in the cloud
Claude, Codex, or Cursor connected in 30 seconds. No Python, no JSON, no
terminal. $15.00/mo locked in for life (12.50/mo yearly pricing). 7-day free
trial - cancel any time before day 7 if it's not for you. Beta pricing -
sign up now and your rate never goes up. OSS users: code BMFOSS takes
another 20% off for 3 months.
Basic Memory Teams is now available!
Give your team a single, shared cloud workspace. Knowledge isn't confined to one person - anything a teammate writes is immediately available to everyone else and to their AI assistants.
Edit a note together in real time, hand work off between humans and agents, and build one connected knowledge base instead of scattered copies. Same pricing - start with one user and add more as needed.
Basic Memory
Your AI never forgets again.
Pick up right where you left off - in Claude, Codex, Cursor, ChatGPT, or
anything that speaks MCP. Your knowledge
lives as Markdown files that both you and your AI can read, write, and
search.
- Local-first. Plain text on your disk. Forever.
- Two-way. AI and humans write to the same files; sync keeps them in step.
- A real knowledge graph. Observations and wikilinks compound into context.
- Semantic search. Find notes by meaning, not just keywords.
- MCP-native. Works with every major AI client and IDE.
- Progressive tool discovery. Every tool is tagged with behavior hints
(read-only, destructive, idempotent) so agents pick the right tool on
demand - no wasted context trying things to see what they do. - Cloud, optional. Sync across devices when you want - never required.
Get started
Pick the path that fits you. Both run the same product on the same Markdown.
| ☁️ Cloud | 💻 Local install |
|---|---|
|
30 seconds. Sign up, connect your AI client, done.
$15.00/mo locked for life · 7-day free trial · cancel any time |
2 minutes. Install, configure your AI client, run.
|
What people are saying
Basic Memory changed my whole relationship with LLMs. I switched from GPT
and Gemini to exclusively Claude and Claude Code because of this
integration and am completely revamping all our company's processes around
a Basic Memory workflow.
- Alex, TrainerDay
Basic Memory is the missing 'wow' factor in AI chatbots. Now I can't
imagine Claude or Claude Code without it.
- Caleb, Caleb Picker Consulting
I don't code without Basic Memory anymore. It's such a time saver to be
able to refer to projects I don't currently have active and keep a running
log of all my learnings and ProTips.
- @groksrc, Developer
More on basicmemory.com.
Basic Memory Cloud
The hosted version of Basic Memory. Same product, same Markdown files, same
MCP tools - we just host the database, run the sync, and put it on your
phone.
What you get
- Every device, same brain. Your knowledge graph on web, mobile, and
desktop. No copy-paste between machines. - Connect any MCP client. Claude Desktop, Claude Code, Codex, Cursor,
ChatGPT (Custom GPTs), VS Code - one-click connect from the web app. - Bidirectional sync to local. Edit on your phone, see it in Obsidian on
your laptop. rclone-powered with conflict resolution. - Snapshots and backups. Point-in-time restore. Browse history. Never
lose a note. - No lock-in. Your notes are plain Markdown. Export to local Markdown any
time - same files, same format, same wikilinks. Cancel anytime, your data
stays yours.
Built on WorkOS AuthKit, Neon Postgres, and Tigris S3.
Pricing
$15.00/mo, locked in for the life of your subscription (regular price
$19). Sign up during beta and the rate never goes up - as long as you stay
subscribed, you keep the price. One plan, no tiers, no surprise upgrades.
Unlimited notes, unlimited projects, every feature.
- 7-day free trial. Cancel any time before day 7 if it's not for you.
- Cancel anytime after that too - export your notes whenever you want.
- OSS users: code
BMFOSSfor another 20% off for 3 months (~$11.40/mo).
Cloud vs. local
| Cloud | Local | |
|---|---|---|
| Setup time | 30 seconds | 2 minutes (requires Python) |
| Cost | $15.00/mo, locked for life (7-day trial) | Free |
| Storage | We host (Tigris S3) | Your disk |
| Cross-device sync | Built in | Manual (Git, Syncthing, etc.) |
| Mobile access | Yes (web + app) | No |
| Air-gapped | No | Yes |
| Your data stays yours | Yes - export anytime | Yes - already there |
| Source code | AGPL-3.0 | AGPL-3.0 |
| Snapshots & backups | Built in | Roll your own |
Both paths use the same OSS engine and the same Markdown files. There's no
lock-in either way - flip between them when your needs change.
Works with the tools you already use
| Client | Transport | Notes |
|---|---|---|
| Cloud web app | https | Sign in at basicmemory.com - no install |
| Claude Desktop | stdio/https | macOS / Windows / Linux |
| Claude Code | stdio/https | claude mcp add |
| Codex | stdio/https | OpenAI's coding agent |
| Cursor | stdio/https | .cursor/mcp.json |
| VS Code | stdio/https | Native MCP support |
| ChatGPT | https | Custom GPT actions (search / fetch) |
| Obsidian | - | Reads/writes the same Markdown directly |
| Anything MCP | stdio/https | If it speaks MCP, it works |
Official agent packages
This repository is also the canonical home for Basic Memory's host-native
agent packages. The core Python package, Claude Code plugin, shared skills,
Hermes plugin, and OpenClaw plugin all ship from the same source tree.
Maintainers can verify the whole consolidated surface from the repo root:
just package-check
Package-local justfiles are also available when working inside one host:
just package-check-claude-code
just package-check-skills
just package-check-hermes
just package-check-openclaw
Claude Code plugin
The Claude Code plugin is the bridge between Claude's working memory and Basic
Memory - session-start briefings, pre-compaction checkpoints, an opt-in capture
output style, and /basic-memory:bm-setup · :remember · :share · :status.
Connect the Basic Memory MCP server first - see Connect your AI
client. The plugin's hooks and skills call it, so it's a
hard prerequisite. Then add the marketplace and install:
claude plugin marketplace add basicmachines-co/basic-memory \
--sparse .claude-plugin plugins/claude-code
claude plugin install basic-memory@basicmachines-co
Source: plugins/claude-code.
Shared skills
Framework-agnostic SKILL.md files live in skills/. If your
Skills CLI supports repository subdirectory sources:
npx skills add basicmachines-co/basic-memory/skills
If your installed Skills CLI cannot load that source, update the CLI or copy
the memory-* directories from skills/ into your agent's skills directory.
Hermes
Hermes keeps its native plugin shape under integrations/hermes:
hermes plugins install basicmachines-co/basic-memory --path integrations/hermes
If your Hermes build lacks subpath installs, use the final deprecatedbasicmachines-co/hermes-basic-memory pointer release until host support
lands.
OpenClaw
OpenClaw stays package-native and publishes fromintegrations/openclaw:
openclaw plugins install @basicmemory/openclaw-basic-memory
Pick up where you left off
https://github.com/user-attachments/assets/a55d8238-8dd0-454a-be4c-8860dbbd0ddc
Connect your AI client
If you went the Cloud route, the web app walks you through
client connect. The snippets below are for local installs.
Claude Desktop
Edit ~/Library/Application Support/Claude/claude_desktop_config.json:
{
"mcpServers": {
"basic-memory": {
"command": "uvx",
"args": ["basic-memory", "mcp"]
}
}
}
Restart Claude Desktop. Notes live in ~/basic-memory by default.
Claude Code, Codex CLI, Cursor, VS Code, ChatGPT, Obsidian
Claude Code
claude mcp add basic-memory -- uvx basic-memory mcp
For the full memory bridge - session briefings, pre-compaction checkpoints, and
the /basic-memory:* commands - also install the Claude Code
plugin on top of this.
Codex CLI
Add to ~/.codex/config.toml:
[mcp_servers.basic-memory]
command = "uvx"
args = ["basic-memory", "mcp"]
Cursor
Add to .cursor/mcp.json (project) or ~/.cursor/mcp.json (global):
{
"mcpServers": {
"basic-memory": {
"command": "uvx",
"args": ["basic-memory", "mcp"]
}
}
}
VS Code
Add to your User Settings (JSON):
{
"mcp": {
"servers": {
"basic-memory": {
"command": "uvx",
"args": ["basic-memory", "mcp"]
}
}
}
}
ChatGPT
Basic Memory exposes OpenAI-compatible search and fetch tools for Custom
GPT actions. See the ChatGPT integration
guide.
Obsidian
No setup. Point Obsidian at ~/basic-memory (or your project folder) and the
same wikilinks, frontmatter, and Markdown your AI writes appear in your graph
view. Edit either side - sync handles the rest.
Try a prompt:
"Create a note about our project architecture decisions."
"Find information about JWT auth in my notes."
"What have I been working on this week?"
What's New
- Automatic updates. Basic Memory keeps itself up to date for
uv tool
and Homebrew installs;bm updatetriggers a manual check. - Semantic vector search. Find notes by meaning, not just keywords.
Hybrid full-text + vector ranking with FastEmbed embeddings, on SQLite or
Postgres. - Schema system. Infer, validate, and diff the structure of your
knowledge base withschema_infer,schema_validate,schema_diff. - Per-project cloud routing. Route individual projects through the cloud
while others stay local, via API key (bm project set-cloud). - Smarter editing.
edit_noteappend/prepend auto-creates notes when
missing;write_noteguards against accidental overwrites. - Richer search results. Matched chunk text is included so the LLM gets
context, not just hits. - FastMCP 3.0 + tool annotations. Every tool ships with MCP behavior
hints (readOnlyHint,destructiveHint,idempotentHint,openWorldHint) so agents can discover capabilities progressively at
runtime instead of guessing or burning tokens. - CLI overhaul.
--jsonoutput for scripting, workspace-aware commands,
and an htop-inspired project dashboard.
Full CHANGELOG for v0.18 → v0.20.
Why Basic Memory
Most LLM conversations are ephemeral. You ask a question, get an answer, then
everything is forgotten. Workarounds have limits:
- Chat history captures conversations but isn't structured knowledge.
- RAG lets the LLM query your documents but not write back to them.
- Vector DBs need complex infra and usually live in someone else's cloud.
- Knowledge graphs need specialized tooling to maintain.
Basic Memory takes a simpler path: structured Markdown files that humans
and LLMs both read and write.
- All knowledge stays in plain files you control.
- Both sides read and write to the same files.
- Familiar Markdown with semantic patterns - no new format to learn.
- A traversable graph the LLM can follow link by link.
- Works with the editors you already use (Obsidian, VS Code, anything).
- Just files plus a local SQLite index. No servers required.
How it works
You're chatting normally about coffee:
I've been experimenting with brewing methods. Pour over gives more clarity
than French press, water at 205°F seems best, and freshly ground beans
make a huge difference.
Ask the LLM to capture it:
"Make a note on coffee brewing methods."
A Markdown file appears in your project directory in real time:
---
title: Coffee Brewing Methods
permalink: coffee-brewing-methods
tags: [coffee, brewing]
---
# Coffee Brewing Methods
## Observations
- [method] Pour over highlights subtle flavors over body
- [technique] Water at 205°F (96°C) extracts optimal compounds
- [principle] Freshly ground beans preserve aromatics
## Relations
- relates_to [[Coffee Bean Origins]]
- requires [[Proper Grinding Technique]]
- affects [[Flavor Extraction]]
Next session, the LLM picks up the thread. It follows the relations to
surface what you already know about Ethiopian beans and burr grinders, and
builds on it instead of starting over. You see the same files in Obsidian or
your editor. Edit them by hand - the AI sees your changes too.
Real two-way flow: humans edit Markdown, LLMs read/write through MCP, sync
keeps everything consistent, and the source of truth is always your files.
The Markdown format
Each file is an Entity. Entities have Observations (facts about them) andRelations (links to other entities). That's the whole grammar.
Frontmatter
---
title: <Entity title>
type: note
permalink: <uri-slug>
tags: [optional, list]
---
Observations
Facts about the entity. Categories in [brackets], tags with #, optional
context in parens.
- [method] Pour over highlights subtle flavors
- [tip] Grind medium-fine for V60 #brewing
- [fact] Lighter roasts contain more caffeine than dark
- [resource] James Hoffmann's V60 technique on YouTube
- [question] How does temperature affect compound extraction?
Relations
Wiki-style links that form the graph. Single-token relation types, or quote
multi-word ones.
- pairs_well_with [[Chocolate Desserts]]
- grown_in [[Ethiopia]]
- requires [[Burr Grinder]]
- "pairs well with" [[Dark Chocolate]]
Bare - [[Target]] and prose - Worth checking out [[Target]] index aslinks_to. Full reference in the
docs.
MCP tools
Basic Memory exposes these tools to any MCP client. Every tool is annotated
with MCP behavior hints (read-only, destructive, idempotent, open-world) so
agents can pick the right one without trial-and-error:
- Content:
write_note,read_note,edit_note,move_note,delete_note,read_content,view_note - Search & discovery:
search,search_notes,recent_activity,list_directory - Knowledge graph:
build_context(navigatesmemory://URLs),canvas(Obsidian canvas generation) - Projects:
list_memory_projects,create_memory_project,get_current_project,sync_status - Schema:
schema_infer,schema_validate,schema_diff - Cloud:
cloud_info,release_notes
All MCP tools default to text output; pass output_format="json" for
structured responses. Full tool reference in the
docs.
CLI essentials
# Projects
basic-memory project list
basic-memory project add research ~/research
basic-memory project set-cloud research # route through cloud
basic-memory project set-local research # revert
# Health & maintenance
basic-memory status
basic-memory doctor # file <-> DB consistency check
basic-memory tool edit-note ... # CLI access to MCP tools
basic-memory update # check for and install updates
# Imports
basic-memory import claude conversations
basic-memory import chatgpt
basic-memory import memory-json
Routing flags (--local / --cloud) force a target when you're in mixed
mode. Full CLI reference in the
docs.
Auto-updates
CLI installs check for updates every 24 hours by default and apply them
silently (so the MCP server keeps responding).
- Supported install sources:
uv tool, Homebrew - Skipped for
uvx(ephemeral runtime managed by uv) - Manual:
bm update(check + apply) orbm update --check(check only)
Disable in ~/.basic-memory/config.json:
{ "auto_update": false }
Telemetry
Minimal, anonymous events to understand the CLI-to-cloud conversion funnel.
What we collect: cloud promo impressions, cloud login attempts and
outcomes, promo opt-out events.
What we don't: file contents, note titles, knowledge base data, PII, IP
addresses, per-command or per-tool tracking.
Events go to our Umami Cloud instance (open-source,
privacy-focused) on a background thread - never blocks the CLI.
Opt out:
export BASIC_MEMORY_NO_PROMOS=1
This disables promos and all telemetry.
Logging
Basic Memory uses Loguru. Defaults vary
by entry point:
| Entry point | Default | Why |
|---|---|---|
| CLI commands | File only | Doesn't interfere with command output |
| MCP server | File only | Stdout would corrupt JSON-RPC |
| API server | File (local) or stdout (cloud) | Docker/cloud uses stdout |
Log file: ~/.basic-memory/basic-memory.log (10MB rotation, 10 days
retention).
Environment variables
| Variable | Default | Description |
|---|---|---|
BASIC_MEMORY_LOG_LEVEL |
INFO |
DEBUG / INFO / WARNING / ERROR |
BASIC_MEMORY_CLOUD_MODE |
false |
API logs to stdout with structured context |
BASIC_MEMORY_FORCE_LOCAL |
false |
Force local API routing |
BASIC_MEMORY_FORCE_CLOUD |
false |
Force cloud API routing |
BASIC_MEMORY_EXPLICIT_ROUTING |
false |
Mark route selection as explicit |
BASIC_MEMORY_ENV |
dev |
Set to test for test mode (stderr only) |
BASIC_MEMORY_NO_PROMOS |
false |
Disable cloud promos and telemetry |
BASIC_MEMORY_IMPORT_UPLOAD_MAX_BYTES |
104857600 |
Max uploaded import size |
BASIC_MEMORY_LOG_LEVEL=DEBUG basic-memory reindex
tail -f ~/.basic-memory/basic-memory.log
Development
Basic Memory supports SQLite (default, fast, no Docker) and Postgres
(via testcontainers - Docker required).
just install # Install with dev dependencies
just test-sqlite # All tests, SQLite
just test-postgres # All tests, Postgres (testcontainers)
just test # Both backends
just fast-check # fix/format/typecheck + impacted tests
just doctor # File <-> DB consistency check (temp config)
just package-check # Claude Code, skills, Hermes, OpenClaw package checks
just lint
just typecheck # Pyright (primary)
just typecheck-ty # ty (supplemental)
just format
just check # All quality checks
just migration "msg" # New Alembic migration
Tests use pytest markers: windows, benchmark, smoke. See
justfile for the full list.
Contributions welcome - see CONTRIBUTING.md.
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