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Sunpeak

Open-source framework for building, testing, and deploying interactive AI apps across platforms.

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Overview

• Sunpeak is an open-source framework for developing interactive AI applications, known as MCP Apps and ChatGPT Apps.
• These applications can operate within conversational AI platforms like ChatGPT and Claude.
• Sunpeak creates a unified development environment that allows for multi-platform AI development with a single codebase.
• Features include a local simulator for testing, CLI tooling for project management, automated testing support, typed APIs, and pre-built UI components.
• The framework aligns with AI platform design standards and standardizes infrastructure and workflow processes.
• This standardization reduces setup complexity and accelerates iteration and deployment across MCP-compatible AI hosts.

Features

Local ChatGPT App simulator for development and testing
Cross-platform MCP App framework compatible with multiple AI hosts
Pre-built UI components aligned with ChatGPT design guidelines
CLI tools for scaffolding, building, testing, and deployment workflows
Strongly typed runtime APIs and React hooks
Hot-reloading development server for rapid iteration
Automated testing integration with Vitest and Playwright
Single codebase deployment across AI platforms
Project structure conventions to streamline development
Resource repository support for versioning and distribution

FAQ

  1. What is Sunpeak?

    Sunpeak is an open-source framework that enables developers to build interactive applications that run directly inside AI platforms like ChatGPT using the Model Context Protocol.

  2. What are MCP Apps?

    MCP Apps are interactive interfaces embedded inside AI conversations, combining UI resources with backend tools to create dynamic user experiences.

  3. Do I need a paid ChatGPT account to develop with Sunpeak?

    No. The framework includes a local simulator that allows development and testing without requiring a paid ChatGPT subscription.

  4. Which platforms are supported?

    Sunpeak supports AI hosts that implement the MCP protocol, including ChatGPT and Claude.

  5. What tools are included for testing?

    The framework provides built-in testing capabilities using tools like Vitest and Playwright for automated testing workflows.