Skill: Multi-stop trip planner

Bundled execution of the Multi-stop trip planner workflow - Plan a multi-stop journey deterministically: geocode each stop, sum the pairwise haversine distances, estimate arrival times by adding driving hours per leg, count business days from today to each arrival, and pull the weather forecast at every US stop. Six tools - three pure-CPU (math + time), three egress (geocoding + weather) - covering the deterministic skeleton of every road-trip / sales-tour / delivery-route planning problem. One x402 payment runs 6 underlying tools (geocode, geo-distance, add-time, business-days, time-convert, weather-forecast); partial-success per step.

Input

Example output

{
  "pack": "trip-planner",
  "args": {
    "stops": "New York NY, Pittsburgh PA, Cleveland OH, Chicago IL",
    "startIso": "2026-07-20T08:00:00Z"
  },
  "steps": [
    {
      "slug": "geocode",
      "ok": true,
      "result": {}
    },
    {
      "slug": "geo-distance",
      "ok": true,
      "result": {}
    },
    {
      "slug": "add-time",
      "ok": true,
      "result": {}
    },
    {
      "slug": "business-days",
      "ok": true,
      "result": {}
    },
    {
      "slug": "time-convert",
      "ok": true,
      "result": {}
    },
    {
      "slug": "weather-forecast",
      "ok": true,
      "result": {}
    }
  ],
  "summary": "6/6 steps succeeded"
}

Try it - see the 402 challenge (free)

curl -i -X POST https://agent402.tools/api/skill/trip-planner \
  -H "Content-Type: application/json" \
  -d '{"stops":"New York NY, Pittsburgh PA, Cleveland OH, Chicago IL","startIso":"2026-07-20T08:00:00Z"}'

The response is HTTP 402 Payment Required with exact payment requirements. Any x402 v2 client pays automatically and retries:

Paid call (JavaScript agent)

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client();
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/skill/trip-planner", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "stops": "New York NY, Pittsburgh PA, Cleveland OH, Chicago IL",
    "startIso": "2026-07-20T08:00:00Z"
  }),
});

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