Bun-native framework for building MCP servers.

import { Redop } from 'redop';
import { z } from 'zod';

const app = new Redop({ name: 'my-mcp' })
  .middleware(authMiddleware)
  .tool('get_weather', {
    description: 'Get current weather',
    input: z.object({
      location: z.string(),
    },
    async handler({ input }) {
      // input.location is fully typed
      return await fetchWeather(input.location);
    },
  },
  .listen({ transport: 'stdio' });