ChatGPT MCP and Apps: extensions you can try

Shares the hacklist MCP endpoint to add as a custom connector in Claude or ChatGPT, plus an npx command for Claude Code, Cursor and desktop clients.

The author open-sources DeepScrape, which generates one CSS selector per page type, heals it on layout changes, and ships an MCP server so Claude and Cursor can call the scraper as a tool.

A developer shares OpenAI's mcp-extensions GitHub repo and suggests pointing your agent at it to get up to speed on MCP extensions.

An individual reports that WebMCP is now enabled for MCP Apps in ChatGPT Desktop and that OpenAI is working with the MCP community to make it the default, though official details are still emerging.

A reply hails WebMCP becoming the default for MCP Apps in ChatGPT Desktop as a big milestone for the agentic web, with no official source cited.

A developer says WebMCP is coming to MCP Apps so agents can interact directly with apps, and looks forward to seeing it in ChatGPT.

An English post highlights prompts.chat, a 173K-star open-source prompt library for ChatGPT, Claude and Gemini, usable via CLI, MCP server or Claude Code plugin, with CSV export and self-hosting options.

Developers say ChatGPT's MCP Apps now supports WebMCP, letting agents in chat interact directly with apps; they call it the future of interfaces.

A build-in-public update: PostPiper's new MCP server lets Claude and ChatGPT draft and schedule posts, with scheduling moved to Temporal workflows.

An OpenAI staffer says WebMCP is now enabled for MCP Apps in ChatGPT Desktop, and OpenAI is working with the MCP project to make it the default way agents interact with MCP Apps.

The author built a ChatGPT MCP extension for Forkable so they can order lunch while Codex works, with a screenshot.

A developer built a small game by voice from a phone; the platform's built-in MCP service lets ChatGPT inspect and modify the codebase, with full Git ownership for users.