Fr Power Mix

{
  "count": 1,
  "records": [
    {
      "co2_intensity_g_kwh": 39,
      "consumption_mw": 37746,
      "exchange_mw": {
        "england": -2316,
        "germany_belgium": -5483,
        "italy": -2500,
        "physical_total": -13253,
        "spain": -1000,
        "switzerland": -2227
      },
      "forecast_d1_mw": 36700,
      "forecast_d_mw": 37176,
      "production_mw": {
        "battery_discharge": 90,
        "battery_storage": -9,
        "bioenergy": 1018,
        "coal": 0,
        "fuel_oil": 36,
        "gas": 3455,
        "hydro": 3998,
        "nuclear": 37611,
        "pumped_storage": -183,
        "solar": 1148,
        "wind": 3836
      },
      "timestamp_utc": "2026-07-14T05:15:00+00:00"
    }
  ],
  "source": "RTE eCO2mix real-time via ODRE (Licence Ouverte 2.0, attribution RTE/ODRE)"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://data.greeneris.io/v1/fr/power-mix?rows=4'

# 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/fr/power-mix?rows=4' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// 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%2Ffr%2Fpower-mix
const res = await pay("https://data.greeneris.io/v1/fr/power-mix?rows=4");
console.log(res.status, await res.text());

# 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/fr/power-mix?rows=4")
    print(res.status_code, res.text)