Lumyr
Ask for a dashboard. Keep your data.
Lumyr is an open-source desktop app that turns a sentence into a working
Streamlit dashboard. It connects straight to your warehouse, runs every query
on your machine, and calls Claude with your own Anthropic API key.
There is no account, no backend, and no Lumyr server. Nothing routes through us,
because there is no "us" in the request path.
Landing page ·
Releases ·
Contributing · MIT licensed
What leaves your machine
Being precise about this, because it's the whole point:
| Stays local | Sent to Anthropic under your key |
|---|
| Database credentials (OS keychain) | Your prompt |
| Your API key (encrypted via safeStorage) | Table and column names |
| Query execution and results | Rows the agent samples to verify its work |
| The generated dashboard | |
No telemetry endpoint, no sign-in, no usage metering. Crash reporting exists but
is off unless you build with a SENTRY_DSN.
The agent is instructed to issue read-only queries. Give it a read-only
database role anyway — an enforced permission is worth more than an
instruction.
Install
Download a build from Releases,
or run from source:
git clone https://github.com/gautamgupta0196/Lumyr
cd Lumyr && npm install
npm run prepare:python # downloads a self-contained Python + dashboard deps
npm run dev
Requirements: Node 20+ and an Anthropic API key from
console.anthropic.com.
On first launch, open Settings and paste your API key. It is encrypted with
your OS key store and never written into the repo.
Data sources
BigQuery · PostgreSQL · Snowflake · Redshift · NetSuite · ODBC · CSV/Excel
How dashboards get built
Generation is handled by the open-source opencode agent,
embedded and run locally. Lumyr gives it a local MCP bridge
(electron/opencode/) so it can list your tables, read schemas, and run
read-only queries while it writes the dashboard — then hands you the resulting
app.py.
Development
npm run dev # Vite dev server + Electron
npm run typecheck # tsc --noEmit
npm run lint # ESLint over src/ and electron/
npm run test:unit # Vitest
npm run build # production build via electron-builder
Architecture notes for contributors live in CLAUDE.md.
License
MIT — see LICENSE.
