Daily forecast (global)

7-day daily weather forecast for any location: high/low temp, precipitation sum and probability, max wind, UV index, sunrise/sunset. Open-Meteo, no key, global. ?lat=35.68&lon=139.69.

Input

Field	Type	Description
lat *	number	Latitude, -90 to 90
lon *	number	Longitude, -180 to 180
days	number	Forecast days, 1-16 (default 7)
units	string	Temperature unit: celsius (default) or fahrenheit

Example output

{
  "lat": 35.6762,
  "lon": 139.6503,
  "days": [
    {
      "date": "2026-06-23",
      "condition": "Slight rain",
      "weatherCode": 61,
      "tempMax": 28.1,
      "tempMin": 21.3,
      "unit": "°C",
      "precipSum": 2.4,
      "precipProbability": 65,
      "windMax": 15.2,
      "windGusts": 22.1,
      "windUnit": "km/h",
      "uvIndex": 7.5,
      "sunrise": "04:25",
      "sunset": "19:01"
    }
  ],
  "source": "api.open-meteo.com (CC BY 4.0)"
}

Try it — see the 402 challenge (free)

curl -i "https://agent402.tools/api/weather-daily?lat=35.6762&lon=139.6503"

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/weather-daily?lat=35.6762&lon=139.6503");

Wallet-only. This tool reaches the network/browser/storage, so it is paid in USDC via x402 (no proof-of-work tier).

Part of these workflows

This tool is one step in a curated multi-tool workflow — agents can fetch the whole sequence as an MCP prompt or call https://agent402.tools/api/skill-packs/{slug}/prompt.

• Weather briefing — Full weather briefing for a location: current conditions, 7-day forecast, and air quality index in one pass.

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