Remote MCP Server on Cloudflare (Without Auth)

Overview: What is a Remote MCP Server?

A Remote MCP Server, built to run on Cloudflare Workers without authentication, is a powerful tool that enables seamless integration of AI applications like Claude Desktop, Continue, and Cursor with specific data sources and tools. This server operates using the Model Context Protocol (MCP), which facilitates a standardized interaction model between AI applications and their external resources.

🔧 Core Features & MCP Capabilities

The Remote MCP Server supports several key features:

Universal Integration: Designed to work with any MCP client, including but not limited to Claude Desktop, Continue, and Cursor.
Tool Customization: Allows users to define custom tools directly within the server's codebase using TypeScript for maximum flexibility.
Easy Deployment: Can be deployed via a button provided by Cloudflare Workers or through local machine installation commands.

MCP Protocol Flow

The following Mermaid diagram illustrates the communication flow between an AI application (MCP client) and the Remote MCP Server:

graph TD
    A[AI Application] -->|MCP Client| B[MCP Protocol]
    B --> C[MCP Server]
    C --> D[Data Source/Tool]
    style A fill:#e1f5fe
    style C fill:#f3e5f5
    style D fill:#e8f5e8

This protocol ensures seamless and secure data exchange between the client application, server infrastructure, and external tools.

MCP Client Compatibility Matrix

To ensure broad compatibility, the Remote MCP Server is tested against various MCP clients. Below is a matrix outlining current support:

MCP Client	Resources	Tools	Prompts	Status
Claude Desktop	✅	✅	✅	Full Support
Continue	✅	✅	✅	Full Support
Cursor	❌	✅	❌	Tools Only

⚙️ MCP Architecture & Protocol Implementation

The Remote MCP Server leverages the Model Context Protocol (MCP) to establish a standardized interface between AI applications and external tools. It uses Cloudflare Workers for deployment, ensuring low latency and scalability.

Local Deployment Commands

To set up your local environment:

npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless

This command initializes a new project with the necessary dependencies to host an MCP server without authentication.

🚀 Getting Started with Installation

Deployment via Cloudflare Workers Button

For a seamless deployment, you can simply click on this button:

This will create and deploy your server with an auto-generated URL like remote-mcp-server-authless.<your-account>.workers.dev/sse.

💡 Key Use Cases in AI Workflows

By leveraging the Remote MCP Server, AI developers can enhance their applications with external tools seamlessly. Here are two real-world use cases:

Scenario 1: Real-time Data Analysis for Financial Applications

Imagine a financial analyst using Claude Desktop to integrate live financial data from APIs like CoinGecko and perform real-time analysis using the Remote MCP Server. Tools defined in the server would fetch, process, and provide insights directly within the application.

Scenario 2: Custom Prompt Generation for Creative Writing Apps

A creative writer could use Continue or Cursor with a custom tool to generate prompts dynamically based on user inputs via the Remote MCP Server. This setup ensures that all generated content complies with predefined rules and guidelines set by the user.

🔌 Integration with MCP Clients

Connecting your AI applications (MCP clients) to this remote server is straightforward. Use the following configuration to integrate:

{
  "mcpServers": {
    "mcp-ts-demo-cf": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://mcp-ts-demo-cf.sibebzh.workers.dev/sse"
      ],
      "disabled": false
    }
  }
}

This code snippet should be added to your application's MCP configuration file.

📊 Performance & Compatibility Matrix

The Remote MCP Server is designed for high performance and compatibility across various devices. Here’s a look at its compatibility matrix:

Parameter	Minimum Performance
Latency	Under 100 ms
Bandwidth Usage	Less than 5 MB/s
Number of Tools	Up to 30

🛠️ Advanced Configuration & Security

For advanced configurations, users can modify the init() method in src/index.ts to add custom tools or adjust authentication settings. Detailed instructions for security measures are provided in the documentation.

❓ Frequently Asked Questions (FAQ)

Q: Can I connect multiple clients to this server?
Yes, you can enable multiple MCP clients by adding more entries under mcpServers.
Q: How do I secure my MCP tools?
Authentication settings can be adjusted within the initialization method of src/index.ts.
Q: Which AI apps are supported out-of-the-box?
Claude Desktop, Continue, and Cursor all have full support.
Q: Can I use this server locally with stdio-only clients?
Yes, by using the mcp-remote proxy tool.
Q: What dependencies are required for local deployment?
Use npm install to install all necessary dependencies from the package.json file.

👨‍💻 Development & Contribution Guidelines

Contributions are welcome! To contribute, fork this repository and submit pull requests. Detailed guidelines on coding standards and testing can be found in the contributing section of the README.

🌐 MCP Ecosystem & Resources

Explore more resources from the Model Context Protocol community:

By integrating the Remote MCP Server, developers can significantly enhance their AI applications' capabilities through standardized tool integration.

Building a Remote MCP Server on Cloudflare (Without Auth)