Supercharge Your React App: Connecting to MCP Servers in 3 Lines of Code!
This article explores use-mcp, a React library that simplifies connecting your applications to any MCP server. We'll also examine Cloudflare's AI Playground, a chat interface that utilizes remote MCP servers.
use-mcp: Your Easy MCP Client
use-mcp handles the complexities of MCP client development, including transport protocols, authentication, and session management. Connecting is as simple as this:
import { useMcp } from 'use-mcp/react';
function MyComponent() { const { state, tools, callTool } = useMcp({ url: 'https://mcp-server.example.com' }) return <div>Your actual UI code</div>; }
Key Features of use-mcp:
- Connection Management: Handles retries and reconnections, providing real-time connection state ("connecting", "ready", "failed").
- Authentication & Authorization: Supports OAuth 2.1, managing the entire flow securely.
- Dynamic Tool Discovery: Automatically discovers new tools added by the server.
- Debugging & Monitoring: Provides a detailed log for easy troubleshooting.
- Future-Proofed: Supports both Server-Sent Events (SSE) and Streamable HTTP transports.
The MCP Inspector, built with use-mcp, offers a practical demonstration.
Cloudflare's AI Playground: A Ready-to-Use MCP Client
Cloudflare's open-sourced AI Playground provides a complete chat interface with built-in MCP client capabilities, simplifying the integration of your AI agents with external services via MCP.
It leverages Workers AI, providing access to various LLMs and the Agents SDK, along with use-mcp for seamless server connection and tool invocation.
Contributing to the MCP Ecosystem
The open-source nature of MCP fosters rapid evolution. use-mcp aims to expand the community's contributions to the MCP ecosystem.
Explore the Cloudflare AI GitHub repository for examples, including the AI Playground's source code and the MCP Inspector.
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