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Plan, build, and preview interactive apps for AI chat platforms

Fractal is a development platform for building MCP apps and interactive integrations for ChatGPT. It combines an architecture planner, a specialized coding agent, a chat-style preview environment, and deployment tooling in one workflow. Builders can start from an idea, develop the interaction, and test how the app behaves inside a conversational interface.
The product is aimed at independent developers, founders, and teams evaluating new experiences for AI chat platforms. Its preview tools help users iterate on the flow before committing to a larger implementation, while hosted deployment provides a path from prototype to a running app. Free and paid plans vary in project allowances, agent credits, hosting, and team assistance.
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