Showboard MCP server

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.

Also works with Codex, Cursor and other MCP-compatible agents.

Explore the demo · Get started · Documentation

Open source · MIT licensed · Runs on your computer

“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.

Star Showboard to follow updates.

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.

• Go from question to dashboard. The agent sends SQL and a short layout. Showboard runs the queries, chooses charts and displays the board.
• Check where the numbers came from. Open the SQL behind a chart. Chart values come from query results, not numbers the agent types into a layout.
• Reuse answers you ask for often. Saved recipes redraw a board for new inputs. Saved boards keep a snapshot you can reopen.

In our 24-answer Claude Code benchmark, API-priced cost fell from $4.77 to $1.78. Results and limitations below.

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.

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. Then ask about your data:

Which products brought in the most revenue, and how did that change month by month?

For a standalone project setup, open http://localhost:4710 to see the board. You can also run npx showboard pane in a terminal beside your agent.

Just looking? Explore the browser demo before installing.

Prefer to set it up yourself?

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.

Shortened. The full README is on GitHub.