Your APIs, as MCP tools

# routes.oas.json (excerpt)
"/orders/{id}": {
  "get": {
    "operationId": "getOrder",
    "summary": "Fetch order by ID",
    "x-zuplo-route": {
      "mcp": { "type": "resource" }
    }
  }
},
"/tickets": {
  "post": {
    "operationId": "createTicket",
    "summary": "Open a support ticket",
    "x-zuplo-route": {
      "mcp": { "type": "tool" }
    }
  }
}

# Register on the MCP handler:
"/mcp" route → mcpServerHandler({
  operations: [
    { file: "routes.oas.json", operationId: "getOrder" },
    { file: "routes.oas.json", operationId: "createTicket" }
  ]
})

import { ZuploRequest, ZuploContext } from "@zuplo/runtime";

// Register in routes.oas.json with x-zuplo-route.mcp = { type: "tool" }
// and x-zuplo-route.handler = $import(./modules/plan-trip)

export default async function planTrip(
  request: ZuploRequest,
  context: ZuploContext,
) {
  const { destination, dates } = await request.json();

  // Compose existing routes — each runs through its own policies
  const weather = await context.invokeRoute(
    `/v1/weather?city=${destination}`,
  );
  const flights = await context.invokeRoute(
    `/v1/flights?dest=${destination}&dates=${dates}`,
  );
  const hotels = await context.invokeRoute(
    `/v1/hotels?city=${destination}&dates=${dates}`,
  );

  return Response.json({ weather, flights, hotels });
}