ChatGPT MCP and Apps: extensions you can try

After Reddit cut off logged-out data access and half his MCP server's calls returned 403, the author rebuilt Reddit tools to fetch public posts through the user's logged-in Chrome extension, usable from Claude, ChatGPT and Cursor.

TFTC launched a free MCP server that searches podcast transcripts, reads articles and pulls bitcoin ETF flows and Treasury auction results, working with ChatGPT and Claude.

A blog post walks through hosting an MCP server on ChatGPT Sites, covering creation in Plugin Creator, connecting and sharing it, and the permissions and authentication roles involved.

Archicad 30 ships a beta MCP connection whose command can be pasted into ChatGPT, Claude or Cursor to read and batch-edit the live model, limited to Collaborate and Max subscribers.

A reminder to revoke broad Coinbase access granted to ChatGPT, Claude, or Grok and re-authorize via Coinbase's remote MCP endpoint while selecting only a dedicated AI-agent test portfolio.

HoodFi Name's MCP with the PayBox connector lets Claude, Grok or ChatGPT register a .hoodfi.eth name and manage onchain identity conversationally.

MIT-licensed CloudHarness runs pi agents inside a single MCP server in the cloud, so any MCP client like ChatGPT becomes the control plane while credentials stay out of chat.

Open-source prompt library prompts.chat ships a CLI, an MCP server and a Claude Code plugin, with all prompts in the public domain and a self-hostable private version.

Connecting Codex to a signed-in Chrome session failed with this error; the real cause was a macOS Files & Folders permission attributed to iTerm2, not ChatGPT.

Renoise MCP lets Claude or ChatGPT restage scenes, outfits and lighting while keeping motion, then handle generation, captions and music all inside the chat.

Fuzzbucket's new MCP connector brings brands, workspaces, and canvas into ChatGPT, Claude, Cursor and others, with one sign-in and in-chat creation.

A promo for a crypto market data MCP server that claims to give Claude, ChatGPT, Cursor or custom agents live prices through one subscription.