ChatGPT MCP and Apps: extensions you can try

Payments tool Pocketsflow released an MCP that lets users check orders and send promo emails from ChatGPT, Claude, Grok and other AI assistants.

Sirius released an MCP server that lets Claude, ChatGPT, Codex, Gemini and Mistral search private datasets, read prices and verify training certificates; it is read-only for now.

Arbitron's MCP server offers 8 tools, including funding rates, cross-exchange spreads and backtests, and connects to Claude, ChatGPT and Cursor.

Masko provides consistent poses, background removal and transparent video, and connects via MCP to ChatGPT, Claude or Cursor so agents can focus on moods and transitions.

One URL connects Claude or ChatGPT to look up token authorities, liquidity, holders, sniper addresses and DEX data.

A promotional post for an MCP server that connects Claude, ChatGPT, Cursor and custom agents to live crypto market data, aggregating multiple sources through a single endpoint.

Someone built a 3D model of their apartment into a Mac menu bar tool, where clicking a lamp turns on the real one; it is MIT-licensed and can be linked privately to ChatGPT or Claude or connected via MCP so AI can adjust devices.

The author used Dot to build Sites backends as MCP servers and plugin extensions for the frontend, creating a news app and a Spanish vocab app in ChatGPT and noting what works and what could improve.

Radar Labs released an official MCP server that connects its location and risk data to ChatGPT or Claude for fraud, compliance, operations and marketing use cases.

An open-source Mac utility that collects screenshots, downloads and 7 days of clipboard history, lets you drag items into any app, and lets AI agents search screenshots via MCP.

Four-Leaf's open-source MCP server puts 15 job-search and interview-prep tools inside ChatGPT Desktop, Claude, Cursor and other clients, using OAuth and running comp searches server-side.

The free, open-source remctl lets you add, edit and delete reminders from the terminal, view today's and overdue tasks, and connect via MCP.