ChatGPT MCP and Apps: extensions you can try

The author tested LemMeBuyIt with Claude, Grok, ChatGPT and Muse and found four different ways of connecting to the same MCP server.

The WordPress plugin StoreAgent hosts its MCP server on its own gateway, with Claude and ChatGPT connecting read-only via OAuth, plus rate limits and a kill switch.

Connecting the NFTm MCP inside ChatGPT, Claude or Cursor lets an AI agent create and launch an NFT collection and store.

A chip supply chain broken into 10 segments with holdings, buyers, sellers and financials, plus a free MCP to plug into Claude or ChatGPT.

The author tested Internet Computer's ChatGPT connector, which discovers on-chain apps, inspects Candid interfaces and authorizes interactions via Internet Identity.

A developer complains that MCP apps are intermittently blocked by safety reviews and asks OpenAI to explain what triggers them, saying otherwise they can't ship to customers.

The open-source ICP MCP connector supports ChatGPT and Claude, authorizes via Internet Identity, and offers read-only or action-enabled access.

DFINITY launched an MCP-based Internet Computer connector that lets ChatGPT read and write data in ICP apps, with access granted through Internet Identity.

Cinema 4D's official MCP lets AI tools like Claude and ChatGPT take instructions and automate everything from modeling to rendering, including tool creation.

The author found that client support for OpenAI's MCP Extensions differs significantly while testing Plugin Extensions, and shared a comparison chart.

Cashboard demos an AI reading charts, liquidations and funding rates and setting alerts automatically, with an MCP server for ChatGPT, Claude and Cursor still on the roadmap.

DFINITY launched an MCP integration that lets users interact with ICP apps directly from ChatGPT, which the author says no other chain can do.