ChatGPT MCP and Apps: extensions you can try

An open-source remote MCP server lets agents search 1.2M US physicians, Medicare procedure volumes and hospital site facts, with no sign-up and support for ChatGPT and other clients.

A Thai team built an enterprise AI chief of staff that builds a company knowledge graph from about a hundred tools like Slack, Gmail and Stripe, and plugs into Claude Code, Cursor or ChatGPT as an MCP server.

After building two connectors in a week, the author explains in a video how he decides what to build, framing ChatGPT plugins and Claude connectors as the new app stores.

The solo-built productivity product SelfManager has launched an MCP server that lets assistants like ChatGPT and Claude work directly with your tasks, tables and notes.

prompts.chat, billed as the world's largest open-source prompt library, works as a CLI, MCP server or Claude Code plugin, and can be self-hosted as a private version with custom branding and authentication.

Fokusflow released a read-only MCP server that lets users ask ChatGPT questions like whether their app is up or if there are open alerts.

A demo shows an app appearing in the ChatGPT Work sidebar, with a full guide on connecting your own app via OpenAI plugin extensions in mcp-use v2.8.0.

The author first built an MCP server to control an air conditioner through ChatGPT, then turned the same implementation into a native macOS app with a simple prompt.

The OpenAI mcp-extensions spec adds an icons property to tools/list entries, with a link to the official documentation.

The open-source project formerly called Awesome ChatGPT Prompts offers a CLI, an MCP server and a Claude Code plugin, and can be self-hosted as a private version.

A demo of MCP elicitation shows destructive actions like sending email being confirmed directly by the MCP server in the ChatGPT or Claude client, so the agent never sees or clicks the confirm button.

A Buffer marketer demonstrates using its MCP connector to pull a year of social data into ChatGPT or Claude, plan a month of content and review how posts performed.