Tersa

A visual AI playground. Drag, drop, connect and run nodes to build AI workflows powered by the Vercel AI SDK Gateway.

Features

• Visual Workflow Builder: Create AI workflows by connecting nodes in a drag-and-drop canvas
• Multi-Model Support: Access text, image and video models from 25+ providers through Vercel AI SDK Gateway
• Cost Indicators: See relative pricing across models at a glance
• Reasoning Extraction: View model reasoning for supported providers
• Streaming Responses: Real-time text generation with streaming support
• Local Storage: Canvas state persists in the browser automatically

Technologies

• Next.js 15 with App Router and Turbopack
• React 19
• Vercel AI SDK with AI SDK Gateway
• Vercel Blob for media storage
• ReactFlow for the visual canvas
• TipTap for rich text editing
• Tailwind CSS for styling
• shadcn/ui, Kibo UI and Radix UI for UI components

Getting Started

Prerequisites

• Node.js (v20+)
• PNPM package manager

Installation

1. Clone the repository

   git clone https://github.com/vercel-labs/tersa.git
   cd tersa

2. Install dependencies

   pnpm install

3. Create a .env.local file with your AI SDK Gateway credentials and any provider API keys you want to use.

4. Run the development server

   pnpm dev

5. Open http://localhost:3000 in your browser

Usage

1. Add nodes to the canvas using the toolbar
2. Connect nodes by dragging from one node's output to another's input
3. Select a model from any supported provider
4. Run your workflow to process data through the AI models

License

This project is licensed under the MIT License - see the LICENSE file for details.

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Made with ❤️ and 🤖 by Hayden Bleasel.