Create api/mcp.js:

import { createVercelHandler } from 'docusaurus-plugin-mcp-server/adapters';
import path from 'path';
import { fileURLToPath } from 'url';

const __dirname = path.dirname(fileURLToPath(import.meta.url));

export default createVercelHandler({
  docsPath: path.join(__dirname, '../build/mcp/docs.json'),
  indexPath: path.join(__dirname, '../build/mcp/search-index.json'),
  name: 'my-docs',
  baseUrl: 'https://docs.example.com',
});

Add to vercel.json:

{
  "functions": {
    "api/mcp.js": {
      "includeFiles": "build/mcp/**"
    }
  },
  "rewrites": [{ "source": "/mcp", "destination": "/api/mcp" }]
}

Create netlify/functions/mcp.js:

import { createNetlifyHandler } from 'docusaurus-plugin-mcp-server/adapters';
import path from 'path';
import { fileURLToPath } from 'url';

const __dirname = path.dirname(fileURLToPath(import.meta.url));

export const handler = createNetlifyHandler({
  docsPath: path.join(__dirname, '../../build/mcp/docs.json'),
  indexPath: path.join(__dirname, '../../build/mcp/search-index.json'),
  name: 'my-docs',
  baseUrl: 'https://docs.example.com',
});

Add to netlify.toml:

[build]
  publish = "build"

[functions]
  directory = "netlify/functions"
  included_files = ["build/mcp/**"]

[[redirects]]
  from = "/mcp"
  to = "/.netlify/functions/mcp"
  status = 200

Cloudflare Workers can't access the filesystem, so you need to import the data directly:

import { createCloudflareHandler } from 'docusaurus-plugin-mcp-server/adapters';
import docs from '../build/mcp/docs.json';
import searchIndex from '../build/mcp/search-index.json';

export default {
  fetch: createCloudflareHandler({
    docs,
    searchIndexData: searchIndex,
    name: 'my-docs',
    baseUrl: 'https://docs.example.com',
  }),
};