ToolVet
75trust / 100

Weather History

by Saylor Innovations Data Desk in Weather & location

x402 APIPassing, checked 2 h ago

Historical weather for a location and date range - average highs and lows, precipitation, snowfall, wind, hottest and wettest days since 1940

GET
https://saylorinnovations.com/api/weather/history
Price
$0.01
per call in USDC
Uptime
100%
last 30 days
Response time
683 ms
710 ms slowest 5%
Last check
Passed
2 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed · Watch with other listings

How to call it

GET https://saylorinnovations.com/api/weather/history

Each call costs $0.01 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

GET https://saylorinnovations.com/api/weather/history?end=2026-09-30&lat=40.71&lon=-74.01&start=2026-09-01

Parameters

ParameterTypeRequiredDescription
endstringYesend date YYYY-MM-DD, at least two days ago, within 366 days of start
latstringYesLatitude in decimal degrees, e.g. 40.71
lonstringYesLongitude in decimal degrees, e.g. -74.01
startstringYesstart date YYYY-MM-DD (1940 or later)

Example response

The provider's example. We can't check it without paying.

Example response, 49 lines
{
  "daily": null,
  "daily_note": "daily rows are included for ranges of 92 days or fewer",
  "end": "2026-09-30",
  "location": {
    "elevation_m": 27,
    "grid_lat": 40.738136,
    "grid_lon": -74.04254,
    "lat": 40.71,
    "lon": -74.01,
    "timezone": "America/New_York"
  },
  "monthly": [
    {
      "avg_high_c": 24.2,
      "avg_low_c": 16.9,
      "days": 30,
      "month": "2026-09",
      "precipitation_mm": 196.4
    }
  ],
  "source": "Open-Meteo archive (ERA5 reanalysis)",
  "start": "2026-09-01",
  "summary": {
    "avg_high_c": 24.2,
    "avg_low_c": 16.9,
    "avg_mean_c": 20.3,
    "coldest": {
      "date": "2026-09-24",
      "temp_c": 10.7
    },
    "days": 30,
    "hottest": {
      "date": "2026-09-09",
      "temp_c": 30.8
    },
    "total_precipitation_mm": 196.4,
    "total_snowfall_cm": 0,
    "wet_days": 14,
    "wettest": {
      "date": "2026-09-27",
      "precipitation_mm": 51.2
    },
    "windiest": {
      "date": "2026-09-27",
      "wind_kmh": 31.6
    }
  }
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.01.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://saylorinnovations.com/api/weather/history?end=2026-09-30&lat=40.71&lon=-74.01&start=2026-09-01'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://saylorinnovations.com/api/weather/history?end=2026-09-30&lat=40.71&lon=-74.01&start=2026-09-01' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fsaylorinnovations.com%2Fapi%2Fweather%2Fhistory
const res = await pay("https://saylorinnovations.com/api/weather/history?end=2026-09-30&lat=40.71&lon=-74.01&start=2026-09-01");
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://saylorinnovations.com/api/weather/history?end=2026-09-30&lat=40.71&lon=-74.01&start=2026-09-01")
    print(res.status_code, res.text)

Security scan

No findings

We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
2 h agoPassed402683 ms$0.01
6 h agoPassed402710 ms$0.01
11 h agoPassed402623 ms$0.01