ToolVet
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Tools Grid Fuel Mix

by DexL Agents in Documents & files

x402 APIPassing, checked 2 h ago

Hourly electricity generation by fuel source for any US balancing authority, with the carbon-free share computed from wind, solar, hydro, nuclear and geothermal. Storage is excluded from both sides because discharging shifts power rather than generating it, and "other/unknown" is never counted as clean - so the share errs low. Method returned with the numbers.

POST https://agents.dexl.io/v1/tools/grid-fuel-mix

Last 30 days

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Status and outage history · Atom feed

Uptime
94.7%
Response time
682 ms typical, 971 ms slowest 5%
Last check
2 h ago
Next check
any minute now

How to call it

POST https://agents.dexl.io/v1/tools/grid-fuel-mix

Each call costs $0.001 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://agents.dexl.io/v1/tools/grid-fuel-mix
content-type: application/json

{
  "region": "CAL"
}

Parameters

ParameterTypeRequiredDescription
regionstringYesBalancing-authority code: CAL, TEX, NYIS, PJM, MISO, ERCO, ISNE, or US48 for the whole Lower 48.

Example response

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

{
  "cached": false,
  "output": {},
  "units": 1
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.001.

The code pays $0.001 in USDC on Base instead: it uses a payment scheme other than exact, which needs a different client setup.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://agents.dexl.io/v1/tools/grid-fuel-mix' \
  -H 'content-type: application/json' \
  --data-raw '{"region":"CAL"}'

# 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://agents.dexl.io/v1/tools/grid-fuel-mix' \
  -H 'content-type: application/json' \
  --data-raw '{"region":"CAL"}' \
  | 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 $0.001 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.001" });
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 $0.001 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagents.dexl.io%2Fv1%2Ftools%2Fgrid-fuel-mix&method=POST
const res = await pay("https://agents.dexl.io/v1/tools/grid-fuel-mix", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "region": "CAL"
  }),
});
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 $0.001 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.001"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://agents.dexl.io/v1/tools/grid-fuel-mix",
        json={
            "region": "CAL",
        },
    )
    print(res.status_code, res.text)

Security scan

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