openaiPOST

OpenAI open-sources mcp-extensions, the UI layer for MCP plugins

OpenAI released mcp-extensions under Apache 2.0, letting MCP apps become real ChatGPT surfaces such as sidebar apps, file viewers and rich forms; it drew about 560 stars in two days.

Tony Simons

@tonysimons_Archived 26 days agoOriginally posted 2026.10.01

Tony Simons @tonysimons_Originally posted 2026.10.01

Open original on X

OpenAI just open-sourced the UI layer for MCP plugins. mcp-extensions lets MCP apps become real ChatGPT surfaces: sidebar apps, file viewers/editors, composer mentions + rich forms. Apache 2.0. ~560 stars in 2 days. https://github.com/openai/mcp-extensions

x.com/tonysimons_/status/2105688986299810082Archived 2026.10.02 11:32