About Dbrain
Dbrain is an MCP server in the Search category: persistent memory server for AI assistants. PARA taxonomy, hot/warm/cold tiers, dual REST + MCP interface. TypeScript · Fastify · SQLite/FTS5.
Install
git clone https://github.com/ivncmp/dbrainThis server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.
Tools (9)
bumpTouch a memory to keep it hot
Parameters not published.
create_entityCreate a new entity
Parameters not published.
get_entityRead entity with all its facts
Parameters not published.
list_entitiesList entities by category or type
Parameters not published.
logSend conversation messages for storage
Parameters not published.
overviewBrain stats
Parameters not published.
recallSearch memory + get identity (primary tool)
Parameters not published.
rememberSave a fact to an entity
Parameters not published.
wake_upFull identity load
Parameters not published.
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README
Every AI conversation starts from zero. Switch machines, switch apps, and your AI forgets everything. dbrain fixes that.
Install it once, connect every AI you use — Claude Code at home, Claude Code at work, Gemini on your phone. All share the same identity, the same memories, the same knowledge.
[Home] Claude Code ──MCP──┐
[Work] Claude Code ──MCP──┤ ┌─────────────────────────────────┐
[Mobile] Gemini ──REST──────┼────→│ dbrain (your mind) │
[Server] OpenClaw ──REST────┤ │ identity + memory + knowledge. │
[Other] Custom AI ──API────┘ └─────────────────────────────────┘
Not an AI agent. Not an assistant. Not a model. Just memory — structured, searchable, persistent.
Quick Start
npm install -g dbrain
dbrain init # interactive wizard — creates DB, config, identity
dbrain start # starts API on :7878 + dashboard on :7879
Then connect Claude Code from any machine:
dbrain connect claude
The wizard asks for the brain URL and token (shown during init):
┌ dbrain — Connect to a brain
│
◇ Brain URL
│ http://localhost:7878
│
◇ Access token
│ sk-dbr_...
│
◇ Brain found
│
● Brain: dBrain — 2 entities, 0 facts
│
◇ Claude Code configured
│
◇ Files updated ──────────────────────────────────────────────╮
│ │
│ ~/.claude.json MCP server registered │
│ ~/.claude/settings.json Permissions granted │
│ ~/.claude/CLAUDE.md Behavioral instructions installed │
│ │
├──────────────────────────────────────────────────────────────╯
│
└ Connected. Restart Claude Code to activate.
Restart Claude Code and it will start using the brain. You can also skip the wizard:
dbrain connect claude http://your-server:7878 --token=sk-dbr_...
Docker
git clone https://github.com/ivncmp/dbrain.git
cd dbrain
cp .env.example .env # edit token, names, port
docker compose up -d
Then from any client machine:
dbrain connect claude http://your-server:7878
How It Works
The brain has 4 layers:
| Layer | What | How |
|---|---|---|
| Identity | Who is the AI? Who is the user? How should it behave? | documents table |
| Conversations | Raw chat history from every AI session | conversations + messages tables |
| Knowledge | Structured facts organized by PARA | entities + facts tables with hot/warm/cold tiers |
| Recall | Full-text search over all facts | FTS5 with OR logic for multi-language queries |
Memory Tiers
Memories fade if you don't use them — like a real brain.
| Tier | Rule |
|---|---|
| hot | Accessed in the last 7 days, or accessCount >= 10 |
| warm | 8–30 days since last access |
| cold | > 30 days — fading, candidate for archival |
Every search bumps accessed facts back to hot. The brain stays sharp on what matters.
MCP Tools
Available to any MCP client (Claude Code, etc.):
| Tool | Purpose |
|---|---|
recall |
Search memory + get identity (primary tool) |
remember |
Save a fact to an entity |
get_entity |
Read entity with all its facts |
list_entities |
List entities by category or type |
create_entity |
Create a new entity |
bump |
Touch a memory to keep it hot |
log |
Send conversation messages for storage |
wake_up |
Full identity load |
overview |
Brain stats |
REST API
All endpoints require Authorization: Bearer <token> except /health.
| Method | Endpoint | Purpose |
|---|---|---|
GET |
/health |
Brain pulse |
GET |
/connect |
Client config (MCP, permissions, instructions) |
GET/PUT/DELETE |
/workspace/:key |
Identity documents |
GET/POST/DELETE |
/entities/:id |
Knowledge entities |
POST |
/entities/:id/facts |
Add facts to an entity |
PATCH |
/facts/:id/access |
Bump a memory (keep it hot) |
GET/POST |
/conversations |
Chat history |
POST |
/search |
Full-text search over all facts |
GET |
/memory/summary |
Overview: entities x tiers |
CLI Commands
| Command | Where | Purpose |
|---|---|---|
dbrain init [path] |
Server | Create a new brain (DB, config, identity) |
dbrain start [path] |
Server | Start the API server + dashboard |
dbrain connect <client> [url] |
Client | Connect a client to a running brain |
dbrain status [path] |
Server | Check brain status |
init runs on the server (creates the brain). connect runs on the client (configures Claude Code). The brain serves its own client config via GET /connect.
Dashboard
Web dashboard on port 7879. Shows brain stats, entities with PARA categories, fact tiers, conversations, and full-text search. Single-file React app — no build step.
Stack
| Layer | Technology |
|---|---|
| Language | Node.js + TypeScript |
| API | Fastify |
| DB | SQLite + FTS5 (better-sqlite3) |
| MCP | @modelcontextprotocol/sdk (HTTP transport) |
| Validation | Zod |
| CLI | @clack/prompts |
| Dashboard | React 18 (CDN, no build step) |
Development
git clone https://github.com/ivncmp/dbrain.git
cd dbrain
npm install # installs deps + builds (prepare script)
npx dbrain init # create a brain (only needed once)
npm run dev # starts the server with file watching
| Script | What it does |
|---|---|
npm run dev |
Dev server with file watching (tsx) |
npm run build |
Compile TypeScript + copy dashboard HTML |
npm start |
Start the compiled server from dist/ |
npm test |
Run tests with vitest |
npm run lint |
ESLint check |
npm run lint:fix |
ESLint auto-fix |
npm run format |
Prettier format |
npm run check |
Lint + format + build (full pipeline) |
Environment Variables
For non-interactive setup (Docker, CI):
| Variable | Default | Purpose |
|---|---|---|
DBRAIN_DATA |
~/.dbrain |
Data path |
DBRAIN_PORT |
7878 |
API port |
DBRAIN_HOST |
0.0.0.0 |
Bind address |
DBRAIN_TOKEN |
Auto-generated | Access token |
DBRAIN_AGENT_NAME |
dBrain |
AI identity name |
DBRAIN_OWNER_NAME |
Human |
Owner name |
DBRAIN_TIMEZONE |
Auto-detected | Owner timezone |
License
README copy captured when this server was indexed; it may lag the repository. The original is authoritative.