ToolVet
80trust / 100

World Airquality

by tokenguard in Weather & location

x402 APIPassing, checked 3 h ago

How breathable is the air in this place right now? Current PM2.5, PM10, ozone, NO2, SO2, CO and dust plus both the US and European AQI, and the US AQI band ('Good', 'Unhealthy') so the number is directly actionable. Takes a place name, not coordinates

POST
https://eltociear-tokenguard.hf.space/world/airquality
Price
$0.02
per call in USDC
Uptime
100%
last 30 days
Response time
274 ms
361 ms slowest 5%
Last check
Passed
3 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

How to call it

POST https://eltociear-tokenguard.hf.space/world/airquality

Each call costs $0.02 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.

POST https://eltociear-tokenguard.hf.space/world/airquality
content-type: application/json

{
  "location": "Tokyo"
}

Parameters

ParameterTypeRequiredDescription
latitudenumberNoLatitude (use instead of location)
locationstringNoPlace name, e.g. 'Tokyo' — geocoded for you
longitudenumberNoLongitude (use instead of location)

Example response

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

{
  "european_aqi": 18,
  "location": "Tokyo, Japan",
  "pollutants": {
    "ozone": 61,
    "pm2_5": 9.8
  },
  "us_aqi": 42,
  "us_aqi_category": "Good",
  "uv_index": 5.2
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.02.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://eltociear-tokenguard.hf.space/world/airquality' \
  -H 'content-type: application/json' \
  --data-raw '{"location":"Tokyo"}'

# 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 - -X POST 'https://eltociear-tokenguard.hf.space/world/airquality' \
  -H 'content-type: application/json' \
  --data-raw '{"location":"Tokyo"}' \
  | 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 $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
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 $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Feltociear-tokenguard.hf.space%2Fworld%2Fairquality&method=POST
const res = await pay("https://eltociear-tokenguard.hf.space/world/airquality", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "location": "Tokyo"
  }),
});
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 $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://eltociear-tokenguard.hf.space/world/airquality",
        json={
            "location": "Tokyo",
        },
    )
    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
3 h agoPassed402114 ms$0.02
7 h agoPassed402336 ms$0.02
12 h agoPassed402280 ms$0.02
16 h agoPassed402384 ms$0.02
19 h agoPassed402181 ms$0.02
Show 10 older checks
23 h agoPassed402280 ms$0.02
27 h agoPassed402274 ms$0.02
31 h agoPassed402187 ms$0.02
35 h agoPassed402336 ms$0.02
38 h agoPassed402361 ms$0.02
42 h agoPassed402116 ms$0.02
45 h agoPassed402287 ms$0.02
2 days agoPassed402182 ms$0.02
2 days agoPassed402309 ms$0.02
2 days agoPassed402302 ms$0.02