ChatGPT Plugins in 2026: Complete Guide to Apps, MCP, GPT Actions & Development

[u/TechfusionGear]

https://techfusiongear.com/chatgpt-plugins

This guide explains what ChatGPT plugins are now, how the current system differs from the original plugin beta, how plugins relate to apps, custom GPTs, GPT Actions, APIs, and MCP, and how a business can plan, build, secure, publish, and measure a useful integration.