Learn how to deploy and connect a remote MCP server on Cloudflare Workers without authentication
The Remote Authless Model Context Protocol (MCP) Server allows developers to deploy customized and authenticated-free Model Context Protocol servers on Cloudflare Workers. This server acts as a bridge between AI applications and data sources via the MCP protocol, enabling seamless function calls from various MCP clients without requiring authentication. It provides an essential foundation for integrating diverse AI applications with external tools or services.
This MCP server includes several core features that enhance its compatibility and utility in diverse AI workflows:
src/index.ts
file allows you to define your own tools using the this.server.tool(...)
method, making it highly adaptable to specific use cases.The architecture of this RPC-based model follows the Model Context Protocol (MCP), designed to facilitate seamless integration between AI applications and context providers. The protocol ensures that various AI clients can interact with external services by adhering to a standardized structure, making it easy to use this server as an intermediary.
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
graph TD
A[A]-->B["Deploy Remote Authless MCP Server"]
B-->C[Define Tools in index.ts]
C-->D["Install mcp-remote Proxy Tool"]
D-->E["Configure Claude Desktop or similar client"]
E-->F["Launch Integration and Run AI Workflow"]
F --> |Success| H
F --> |Failure| G
H-->I["Perform Successful AI Task"]
G-->J[Debug / Troubleshoot]
style B fill:#f3e5f5
style D fill:#e8f5e8
style E fill:#e1f5fe
style F fill:#f3e5f5
To start working with this Remote Authless MCP Server, follow the steps below:
This will deploy your server on Cloudflare with a URL such as remote-mcp-server-authless.<your-account>.workers.dev/sse
.
npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless
This command will set up the server on your local machine, allowing you to test and develop it before deploying.
Using this Remote Authless MCP Server, developers can create robust and scalable integrations that involve various AI workflows. Here are two practical use cases:
In an enterprise application for financial analysis, the server could communicate with cloud-based stock price services to fetch real-time data. This process would enable AI applications like Claude Desktop or Continue to receive up-to-date stock prices, facilitating accurate and timely market analyses.
For environmental research, an MCP server could connect to distributed IoT sensors deployed across different locations. These sensors can report temperature, humidity, and other metrics, which the server translates into structured data that AI applications can then use for predictive analytics or anomaly detection.
This Remote Authless MCP Server is compatible with several popular MCP clients:
To integrate this server with Claude Desktop, follow the steps listed in the README. This includes configuring the mcpServers
section within the Claude Desktop settings to point to your deployed server URL.
MCP Client | Resources | Tools | Prompts | Status |
---|---|---|---|---|
Claude Desktop | ✅ | ✅ | ✅ | Full Support |
Continue | ✅ | ✅ | ✅ | Full Support |
Cursor | ❌ | ✅ | ❌ | Tools Only |
This matrix reflects the current level of support for different MCP clients, highlighting which features are fully supported and which are currently limited.
For advanced users or environments requiring greater security, this server supports environment variables such as API keys. You can specify these in a configuration object during deployment:
{
"mcpServers": {
"[server-name]": {
"command": "npx",
"args": ["-y", "@modelcontextprotocol/server-[name]"],
"env": {
"API_KEY": "your-api-key"
}
}
}
}
This ensures that sensitive information is kept secure while maintaining the flexibility of remote deployment.
Q: Can I run this server on my local machine? A: Yes, you can use the provided command line instructions to set up and run the server locally before deploying it to Cloudflare Workers.
Q: How can I test the integration with different MCP clients like Continue or Claude Desktop? A: Follow the setup steps outlined in the README for each client to ensure compatibility and full functionality.
Q: Is there a limit to how many tools I can add to this server through src/index.ts
?
A: The number of tools is flexible, but you should consider performance implications when adding too many or very complex tools.
Q: What happens if my deployed server experiences downtime? A: If the server goes down, any connected AI applications such as Claude Desktop will be unable to communicate with it until the server is back up and running.
Q: How do I troubleshoot issues when integrating this server with my AI application? A: Check log files from both the server and the client, verify URL connections, and ensure that all necessary configurations are correct.
Contributions to improve or expand upon this Remote Authless MCP Server are welcome. Developers should familiarize themselves with the following:
For more information on Model Context Protocol (MCP), visit the official documentation: ModelContextProtocol.io. This site provides extensive resources, tutorials, and guides to help you understand and leverage the power of MCP in your projects.
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