ChatGPT MCP and Apps: extensions you can try

The open-source tradingview-mcp project gives ChatGPT, Claude, Cursor and other MCP clients live market data, screeners, technical analysis and backtests.

The developer spent the weekend redesigning Gexpense's UI and submitted an MCP plugin to ChatGPT, which is still awaiting review while MRR remains at zero.

An open-source, self-hosted knowledge base that ingests notes, code, and documents and exposes them via MCP and REST so Claude Code, Codex, ChatGPT, and other clients share retrieval context.

An open-source hosted MCP server that lets ChatGPT, Claude, or Cursor query Google Ads campaign metrics and draft negative keyword or budget updates that need manual approval before running.

The author connected 12 local Parquet tables through DuckDB and 11 read-only MCP tools to a ChatGPT account via a secure tunnel, usable on web and mobile without consuming Codex quota.

OpenAI's MCP Extensions lets users build custom plugins with HTML UIs and pin them as icons in the ChatGPT sidebar, so frequently used Skills can be launched like Figma or Adobe apps.

The author replaced Craft with a native Mac writing app that connects to ChatGPT, Claude and a custom agent via MCP, and supports free cloud sync through a GitHub repository.

The author plugged Jinko, their version without MCP apps, into ChatGPT and used its real-time generated, personalized interface to book a trip to Vegas smoothly.

Ditto V2 on Bittensor SN118 is a memory layer that connects MCP clients like Claude, Cursor, Codex and Grok to one shared notebook, imports history from ChatGPT, Notion and Obsidian, and can schedule workflows and deploy small apps.

A short post pointing to the official OpenAI mcp-extensions repository on GitHub.

A user confirmed that OpenAI's official "Bits & Bolts Remote" demo runs in a regular ChatGPT Plus web chat, opening an extension UI library screen with 36 components.

An SEO tip suggests building an MCP server for your SaaS and submitting it to the ChatGPT plugin directory to get a DR 93 dofollow backlink after approval.