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ChatGPT can connect to custom apps built with MCP, with workspace controls and plan-dependent app capabilities.

Claude supports MCP across Claude.ai, Claude Desktop, Claude Code, and the Messages API, with setup varying by surface.

Perplexity supports custom remote connectors built with MCP in its enterprise connector system.

Codex supports MCP for connecting external tools and systems.

Claude Code connects to Model Context Protocol (MCP) servers on Pro, Max, Team, Enterprise, and API (Console) access; the free Claude.ai plan does not include Claude Code.

Cursor connects to Model Context Protocol (MCP) servers on Hobby, Pro, Pro Plus, Ultra, Teams, and Enterprise through local and remote MCP configuration.

GitHub Copilot supports Model Context Protocol (MCP) client integrations on Free, Pro, Pro Plus, Business, and Enterprise, including Free individual seats not covered by the Business/Enterprise MCP policy gate.

Gemini Code Assist uses configured Model Context Protocol (MCP) servers in agent mode on Standard and Enterprise in both VS Code and IntelliJ.

Devin Desktop’s Cascade agent natively connects to user-configured MCP servers.

Replit Agent connects to Model Context Protocol (MCP) servers as an MCP client on Starter, Core, Teams, and Enterprise through pre-listed and custom server connections.