Turn your Excel, CSV and SQL data into dashboards with Claude Code.
Ask a question. Showboard runs read-only queries and draws the charts. See the SQL behind every chart, and ask a follow-up to explore further.
Explore the demo · Get started · Documentation
“Show me my best seller of 2026, and how it compares with last year.”
2.7× cheaper · 3.5× fewer output tokens · 3.2× faster Claude Code with Showboard against Claude Code on its own, on the same questions and the same files. See the benchmark
One question becomes a dashboard of headline numbers, charts and tables, in your browser, beside your terminal or inside your app.
Open source · MIT licensed · Runs on your computer · Also works with Codex, Cursor and other MCP-compatible agents
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Your agent can write charts. Why add Showboard?
Without Showboard, a chart request can become a coding task: read files, calculate results, write a page and wire up charts. Showboard gives your agent a ready-made way to query the data and display the answer.
Quick start
You need Node.js 22.13+ and a coding agent. Start with a folder of Excel or CSV files, a SQLite database, or a Postgres connection.
1. In Claude Code, install the plugin:
/plugin install showboard --marketplace rohanbeingsocial/showboard
Choose your data folder or database when prompted. Plugin instructions.
2. Ask about your data:
Which products brought in the most revenue, and how did that change month by month?
3. See the board in a pane beside the chat (type /board to open it) and at http://localhost:4711.
In your project, paste this into your agent:
Set up Showboard in this project: run npx showboard guide and follow it.
The guide walks your agent through setup and checks the connection with showboard doctor. Boards open at http://localhost:4710, or run npx showboard pane in a terminal beside your agent.
For a folder of spreadsheets:
cd my-reports
npx showboard init .
For a database:
npx showboard init --db ./shop.sqlite
Restart your agent in that folder and open http://localhost:4710. Claude Code is the default; add --agent codex,cursor,gemini to configure other agents.
For Postgres credentials, use the SHOWBOARD_DB environment variable instead of putting a password in settings files. See the setup guide.
For the Claude desktop app, download the .mcpb extension from the latest release. Install it through Settings → Extensions → Advanced settings → Install Extension. This path does not require a separate Node.js installation. Desktop instructions.
Just looking? Explore the browser demo before installing.
Start with the data you already have
Spreadsheet loading handles title rows, blank rows, total rows, currency strings and common date formats. Each sheet becomes a queryable table; files reload when you save them.
Orders in Excel. Targets in CSV. One question shows the regional gaps and the queries behind them.
In a real app
It works on real data too. Meridian, a private investing app, has Showboard inside. Here Claude Code is asked whether silver rose each time the gold/silver ratio crossed above 90. It reads two years of MCX gold and silver prices from the app's own API and draws one board.
The ratio and silver side by side, each stretch above 90 marked in orange, and silver's moves 1, 3 and 6 months after each cross.
How it works
This was two runs on one dataset. Other agents have not been benchmarked, and Claude's hand-built pages were more individually designed. These results are evidence for this workload, not a guarantee for yours.
Works with your agent
Showboard is an MCP server. It uses the coding agent and model access you already have.
showboard init --agent can configure Claude Code, Codex, Cursor, Gemini CLI, OpenCode, VS Code, Windsurf, Antigravity and BharatCode.
Claude Code is tested end to end. Setup support for other agents does not mean they have all received the same testing. Agent configuration and testing status.
A few things to know
Considering using Showboard?
The documentation covers the details needed to decide whether it fits your workflow:
- Evaluate the fit: capabilities, benchmark methodology, read-only guarantees, limitations and roadmap.
- Set up your agent: installation paths, compatibility, the runnable demo and terminal controls.
- Integrate it into your app: server and React setup, recipes, custom components, actions and data sources.
- Look up the API: options, props, tools, commands and defaults.
Help shape Showboard
Showboard is young, MIT licensed and built with AI assistance, mostly Claude Code. It has a test suite and a reproducible benchmark; real-world feedback is welcome.