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ChatGPT Apps SDK

Build & monetize ChatGPT apps with official SDK

2025-12-18

Product Introduction

  1. Overview: Official SDK for developing third-party applications integrated with ChatGPT using Model Context Protocol (MCP) standard.
  2. Value: Enables developers to build, monetize, and distribute AI-powered apps to ChatGPT's 22M+ users through its marketplace.

Main Features

  1. MCP Server: Build backend services that expose tools/resources to ChatGPT using Node.js-based Model Context Protocol implementation.
  2. Web Components: Create custom UI elements rendered via iframes within ChatGPT's interface for interactive experiences.
  3. Tool Registration: Define tool schemas with metadata for ChatGPT to dynamically discover and invoke your app's capabilities.
  4. OAuth Authentication: Implement secure user authentication flows using OpenAI's OAuth standards.
  5. State Management: Persist conversation states across sessions using MCP's context preservation system.
  6. Revenue Sharing: Earn through ChatGPT's marketplace monetization model based on user engagement metrics.

Problems Solved

  1. Challenge: Developers lack official tools to create deeply integrated, monetizable ChatGPT applications.
  2. Audience: Software developers and startups building AI tools for ChatGPT's massive user ecosystem.
  3. Scenario: Developer creates specialized coding assistant, submits to marketplace, and earns revenue from 1,200+ daily active users.

Unique Advantages

  1. Vs Competitors: Only official SDK with native MCP integration and marketplace distribution - no reverse engineering required.
  2. Innovation: TypeScript/Zod schema support with hot-reload development and MCP Inspector for real-time debugging.

Frequently Asked Questions (FAQ)

  1. What is Model Context Protocol (MCP)? MCP is ChatGPT's standard protocol for tool integration, allowing structured communication between apps and ChatGPT's AI.
  2. How does ChatGPT app monetization work? Developers earn revenue share based on user engagement metrics when their apps are used in ChatGPT's marketplace.
  3. What tech stack is required? Node.js for MCP servers, standard web technologies (HTML/CSS/JS) for UI components, and OAuth 2.0 for authentication.

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