OAuth support added to MCP Adapter

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import { createMcpHandler, withMcpAuth } from 'mcp-handler';
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const handler = createMcpHandler((server) => {
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  server.tool(
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    'roll_dice',
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    'Rolls an N-sided die',
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    { sides: z.number().int().min(2) },
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    async ({ sides }) => {
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      const value = 1 + Math.floor(Math.random() * sides);
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      return { content: [{ type: 'text', text: `🎲 You rolled a ${value}!` }] };
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    }
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  );
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})
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const verifyToken = async (
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  req: Request,
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  bearerToken?: string,
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) => { 
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  if (!bearerToken) return undefined;
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  const isValid = bearerToken === '123';
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  if (!isValid) return undefined;
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  return {
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    token: bearerToken,
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    scopes: ['read:stuff'],
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    clientId: 'client123',
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  };
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};
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const authHandler = withMcpAuth(handler, verifyToken, {
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  required: true, 
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});
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export { authHandler as GET, authHandler as POST };