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Building a Remote MCP Server on Cloudflare (Without Auth)

@joeyqleq

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About Building a Remote MCP Server on Cloudflare (Without Auth)

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#remote-mcp-server#cloudflare#mcp-server

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Overview

What is Building a Remote MCP Server on Cloudflare (Without Auth)?

This example deploys a remote MCP server that requires no authentication on Cloudflare Workers, allowing users to expose custom tools over SSE.

How to use Building a Remote MCP Server on Cloudflare (Without Auth)?

Deploy via the “Deploy to Workers” button or run npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless. Then customize tools inside src/index.ts using this.server.tool(...). Connect clients like Cloudflare AI Playground or Claude Desktop (via the mcp-remote proxy) using the deployed SSE URL.

Key features of Building a Remote MCP Server on Cloudflare (Without Auth)

  • No authentication required for the remote MCP server.
  • One-click deployment to Cloudflare Workers.
  • Custom tools can be added by editing src/index.ts.
  • Connects to Cloudflare AI Playground as a remote MCP client.
  • Works with local MCP clients via the mcp-remote proxy.

Use cases of Building a Remote MCP Server on Cloudflare (Without Auth)

  • Expose custom MCP tools publicly without managing authentication.
  • Prototype and test MCP tools quickly using Cloudflare Workers.
  • Connect remote tools to Cloudflare AI Playground for interactive use.
  • Integrate custom tools with Claude Desktop using a proxy.

FAQ from Building a Remote MCP Server on Cloudflare (Without Auth)

What URL does the server get deployed to?

The server is deployed to a URL like remote-mcp-server-authless.<your-account>.workers.dev/sse.

How do I add custom tools to the MCP server?

Define each tool inside the init() method of src/index.ts using this.server.tool(...).

How can I connect to this server from Cloudflare AI Playground?

Go to https://playground.ai.cloudflare.com/, enter your deployed SSE URL, and start using the tools.

How do I connect this server to Claude Desktop?

Use the mcp-remote proxy: add a configuration entry in Claude Desktop’s MCP settings with command: "npx" and args including "mcp-remote" followed by the SSE URL.

Does this MCP server require authentication?

No, the deployment is explicitly built without authentication.

Frequently asked questions

What URL does the server get deployed to?

The server is deployed to a URL like `remote-mcp-server-authless.<your-account>.workers.dev/sse`.

How do I add custom tools to the MCP server?

Define each tool inside the `init()` method of `src/index.ts` using `this.server.tool(...)`.

How can I connect to this server from Cloudflare AI Playground?

Go to https://playground.ai.cloudflare.com/, enter your deployed SSE URL, and start using the tools.

How do I connect this server to Claude Desktop?

Use the `mcp-remote` proxy: add a configuration entry in Claude Desktop’s MCP settings with `command: "npx"` and args including `"mcp-remote"` followed by the SSE URL.

Does this MCP server require authentication?

No, the deployment is explicitly built without authentication.

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Category

Developer Tools

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Author

joeyqleq

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