Weather

Get the weather

Here is an example that connects to a local weather MCP server (code here)

The example searches for the state in the US with the biggest population, and then queries the weather MCP server to get information about weather related alerts in that location.

Code

import dotenv from "dotenv";
import chalk from "chalk";
import path from "path";
import { ChatOpenAI } from "@langchain/openai";
import HyperAgent from "@hyperbrowser/agent";

dotenv.config();

const TASK = `Search bing for the most populated state in the USA currently. Then list 3 weather alerts for that state.`;

async function run() {
  console.log(chalk.cyan.bold("\n===== Running Task ====="));
  console.log(chalk.white(`Task: ${TASK}`));
  console.log(chalk.cyan.bold("=======================\n"));

  const llm = new ChatOpenAI({
    apiKey: process.env.OPENAI_API_KEY,
    model: "gpt-4o",
  });

  const mcpServerPath = path.join(__dirname, "/servers/weather-server.js");

  console.log(chalk.yellow("Creating Hyperbrowser Agent..."));

  try {
    const agent = new HyperAgent({
      llm: llm,
      debug: true,
    });

    await agent.initializeMCPClient({
      servers: [
        {
          command: "node",
          args: [mcpServerPath],
        },
      ],
    });

    const result = await agent.executeTask(TASK, {
      debugOnAgentOutput: (agentOutput) => {
        console.log("\n" + chalk.cyan.bold("===== AGENT OUTPUT ====="));
        console.dir(agentOutput, { depth: null, colors: true });
        console.log(chalk.cyan.bold("===============") + "\n");
      },
      onStep: (step) => {
        console.log("\n" + chalk.cyan.bold(`===== STEP ${step.idx} =====`));
        console.dir(step, { depth: null, colors: true });
        console.log(chalk.cyan.bold("===============") + "\n");
      },
    });

    await agent.closeAgent();
    console.log(chalk.green.bold("\nResult:"));
    console.log(chalk.white(result.output));
    return result;
  } catch (error) {
    console.error(chalk.red("Error creating agent or executing task:"));
    console.error(
      chalk.red(error instanceof Error ? error.stack : String(error))
    );
  }
}

(async () => {
  try {
    await run();
  } catch (error) {
    console.error(chalk.red("Error:"), error);
    process.exit(1);
  }
})();