Dify
Dify's MCP client integration allows users to connect external MCP servers directly to their AI agents and workflow applications through HTTP transport. Users can add MCP servers via the Tools → MCP interface, configure authentication, and customize tool parameters with fixed values or auto-inference settings. The implementation supports tool discovery, OAuth flows, and provides application portability through server ID references, enabling access to a growing ecosystem of specialized MCP capabilities beyond built-in Dify plugins.