home / mcp / authless mcp server
Provides an authentication-free remote MCP server on Cloudflare that exposes tools via an SSE endpoint and supports clients like Cloudflare Playground and Claude Desktop.
Configuration
View docs{
"mcpServers": {
"anbeime-remote-mcp-server-authless": {
"url": "http://remote-mcp-server-authless.your-account.workers.dev/sse"
}
}
}You can deploy a remote MCP server that runs on Cloudflare Workers or locally via the mcp-remote proxy. This MCP server lets you expose your tools to clients and connect from remote play environments and desktop clients, enabling you to run custom tools without hosting a full backend yourself.
Connect to your remote MCP server from an MCP client to access your tools. You can use a remote server URL to reach the MCP endpoint and invoke the tools you defined. Tools can be accessed from compatible clients, including Cloudflare AI Playground and local MCP clients via the mcp-remote proxy.
From a remote client, you target the server’s SSE endpoint. When you connect, your client will present the available tools and allow you to run them as actions against the remote server. If you customize the server by adding tools in the initialization logic, they will show up in your MCP client automatically.
If you want to test locally, you can run the mcp-remote proxy alongside your server and point your client to the local SSE endpoint (for example, http://localhost:8787/sse). This lets you iterate quickly while developing new tools.
Prerequisites you need before starting:
1) Create your MCP server project using the cloudflare template for an authless remote MCP server.
2) Install dependencies and prepare the server project for running.
3) Start the server either remotely or locally using the commands shown in your chosen setup. Once running, note the SSE URL that clients will use to connect.
Customizing your MCP server. To add your own tools, open the initialization file and define each tool inside the init() method using this.server.tool(...). This is where you describe the capabilities your clients can use.
Connecting from Cloudflare AI Playground. You can connect your MCP server to the AI Playground by entering your deployed MCP server URL in the Playground interface, then you can run your MCP tools directly from the playground environment.
Connecting Claude Desktop to your MCP server. You can connect a local MCP client by configuring Claude Desktop to point at your MCP server’s SSE URL. Use a configuration like the following in Claude’s Settings > Developer > Edit Config, then restart Claude to enable the tools.
{
"mcpServers": {
"calculator": {
"command": "npx",
"args": [
"mcp-remote",
"http://localhost:8787/sse" // or remote-mcp-server-authless.your-account.workers.dev/sse
]
}
}
}