PasteBI

AI-powered data analysis tool. Paste your CSV, JSON, or tab-separated data and get instant visualizations and insights powered by Claude AI.

Features

• AI-Powered Analysis: Claude automatically chooses the best chart type (bar, line, pie, scatter) and extracts key insights
• Multiple Data Formats: Supports CSV, JSON, and tab-separated data
• Interactive Chat: Ask follow-up questions to explore your data further
• Share Results: Generate unique URLs to share your analysis with anyone
• Dark Theme: Clean, modern dark UI with indigo/violet accents

Tech Stack

• Frontend: React + TypeScript + Vite
• Backend: Node.js + Express + TypeScript
• Styling: Tailwind CSS
• Charts: Recharts
• AI: Anthropic Claude (claude-sonnet-4-6)

Project Structure

/client   → Vite React TypeScript app
/server   → Express TypeScript API
/shared   → Shared TypeScript types

Setup

Prerequisites

• Node.js 18+
• npm or yarn
• Anthropic API key

Installation

1. Clone the repository:

git clone <repo-url>
cd paste-bi

2. Install all dependencies:

npm run install:all

3. Create a .env file in the root directory:

cp .env.example .env

4. Add your Anthropic API key to .env:

ANTHROPIC_API_KEY=your_api_key_here
PORT=3001

Development

Start both the client and server in development mode:

npm run dev

This will start:

• Frontend at http://localhost:5173
• Backend at http://localhost:3001

Build

Build both client and server for production:

npm run build

API Endpoints

POST /api/analyze

Analyze pasted data and return structured insights.

Request Body:

{
  "data": "your CSV, JSON, or tab-separated data"
}

Response:

{
  "sessionId": "uuid",
  "analysis": {
    "chartType": "bar" | "line" | "pie" | "scatter",
    "chartData": [...],
    "chartConfig": { "xKey": "...", "yKey": "...", "title": "..." },
    "insights": ["insight 1", "insight 2", ...],
    "anomalies": ["anomaly 1", ...],
    "summary": "Brief summary of the data"
  }
}

POST /api/followup

Ask follow-up questions about your data.

Request Body:

{
  "sessionId": "uuid",
  "question": "your follow-up question"
}

GET /api/session/:id

Retrieve a saved analysis session.

License

MIT