ToolVet
75trust / 100

Gb Power Demand

by eu-verify in Security & trust

x402 APIPassing, checked 4 h ago

Near-real-time Great Britain national electricity demand outturn from the Elexon Insights (BMRS) open API: 5-minute MW readings sorted oldest to newest (default: last 24h = 288 points), plus a 'latest' field with the most recent value. ?last=N (1-500) sets how many recent points to return, e.g. ?last=12 = last hour. Upstream updates every ~5 min; served with a 5-min cache.

GET
https://data.greeneris.io/v1/gb/power-demand
Price
$0.002
per call in USDC
Uptime
100%
last 30 days
Response time
323 ms
355 ms slowest 5%
Last check
Passed
4 h ago, next any minute now

Run a free test callHow to call it

Reliability

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Status and outage history · Atom feed

How to call it

GET https://data.greeneris.io/v1/gb/power-demand

Each call costs $0.002 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://data.greeneris.io/v1/gb/power-demand?last=12

Parameters

ParameterTypeRequiredDescription
laststringNoReturn only the N most recent 5-min readings (1-500, optional)

Example response

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

{
  "count": 2,
  "latest": {
    "demand_mw": 21463,
    "time": "2026-07-14T05:45:00Z"
  },
  "records": [
    {
      "demand_mw": 21180,
      "time": "2026-07-14T05:40:00Z"
    },
    {
      "demand_mw": 21463,
      "time": "2026-07-14T05:45:00Z"
    }
  ],
  "resolution": "5min",
  "source": "Elexon Insights (BMRS) national demand outturn, open data, attribution Elexon",
  "unit": "MW"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.002.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://data.greeneris.io/v1/gb/power-demand?last=12'

# 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://data.greeneris.io/v1/gb/power-demand?last=12' \
  | 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 $0.002 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.002" });
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 $0.002 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fdata.greeneris.io%2Fv1%2Fgb%2Fpower-demand
const res = await pay("https://data.greeneris.io/v1/gb/power-demand?last=12");
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 $0.002 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.002"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://data.greeneris.io/v1/gb/power-demand?last=12")
    print(res.status_code, res.text)

Security scan

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Recent checks

WhenResultHTTPTimePrice
4 h agoPassed402175 ms$0.002
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12 h agoPassed402334 ms$0.002
17 h agoPassed402481 ms$0.002
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Show 10 older checks
25 h agoPassed402323 ms$0.002
29 h agoPassed402337 ms$0.002
33 h agoPassed402176 ms$0.002
37 h agoPassed402337 ms$0.002
40 h agoPassed402403 ms$0.002
44 h agoPassed402331 ms$0.002
2 days agoPassed402175 ms$0.002
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2 days agoPassed402177 ms$0.002