ChatGPT MCP and Apps: extensions you can try

OpenAI is turning ChatGPT into an app platform with plugin sidebars, interactive panels, file viewers and MCP Events automation, though plugin quality in the directory remains uneven.

TradesViz now connects its trading journal to ChatGPT, Claude and Grok via a hosted MCP, letting assistants read trades, fees, notes and tags and, with permission, write reviews back.

A video explains how MCP Apps differ from plain MCP servers and builds a React app into an interactive ChatGPT interface using Skybridge, with the GitHub repo included.

The author built a desktop app that connects to Claude or ChatGPT Desktop through a local MCP, turning scattered notes and documents into a knowledge graph and flagging conflicting trading rules.

The author adapted his open-source Agent Drive project to ChatGPT Sites, using the web page as the entry point and MCP as the call interface so agents can pass files, browse cards and query a research library directly.

An open-source ChatGPT plugin extension lets users check on and steer Claude Code, Codex, Cursor and other agents on their Mac, OVH and Synology machines over Tailscale by voice, and agents can message back when they need a decision.

A list of recruiting systems that support MCP, including Ashby, Greenhouse, Loxo, PCRecruiter, Spott, 100Hires and Darwinbox, notes that Bullhorn does not yet and advises asking vendors before the next renewal.

Manufact's dashboard lets you add a test suite to an MCP server, run tasks through real CLIs like Codex, Claude Code and Pi, and get LLM-judge scores with fix suggestions for each bug.

A Mac app centralizes MCP management for Codex, Claude Code, Cursor and ChatGPT, keeps auth keys on the local machine, and uses a dispatcher to load tools on demand and save tokens.

The author calls ChatGPT's web UI MCP client setup a mess and shares an open-source repo for connecting YouTube transcripts to ChatGPT using an extra VPS as a proxy.

The author says indie developers can host an MCP server on ChatGPT Sites and turn it into a plugin, and outlines a first version for narrow-use tools plus a product definition checklist.

Adding the Atlabs plugin in ChatGPT settings by pasting mcp.atlabs.ai/mcp lets one prompt produce stories, images, video and music.