WebMCP support now available in mcp-handler

Andrew Qu, Boris Besemer

Opt tools in by adding them to the experimental_webMcp object:

Then load the script from your MCP endpoint with the ?webmcp-script parameter:

(server)=>{

18 Sep 2026

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server.registerTool("roll_dice",/* ... */);

{

},

import{ createMcpHandler }from"mcp-handler";

const handler =createMcpHandler(

experimental_webMcp:{

1 min read

Upgrade to mcp-handler@2.2.0 and read the documentation to get started.

export{ handler asGET, handler asPOST};

},

},

tools:["roll_dice"],

);

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