Commodities Oil Producers

{
  "briefing_metadata": {
    "correlations_count": 1,
    "description": "Crude oil and the covered USA companies EDGAR codes tie to it, side by side: US oil and gas stocks against the five year norm (EIA), WTI and Brent spot, then each integrated major, producer and refiner, and two oil field service companies coded as producers, with its share price, its change over 1, 3 and 12 months beside WTI over the same windows, and the 90 day correlation of its daily changes with WTI, with the id of its own briefing for its filed figures. Each group in order of stored market capitalisation; it describes, it does not rank.",
    "metrics_count": 6,
    "name": "Oil and Its Producers"
  },
  "briefing_used": "commodities.oil-producers",
  "metrics": {
    "brent-wti-spread": {
      "name": "brent-wti-spread"
    },
    "natgas-storage-zscore": {
      "name": "natgas-storage-zscore"
    },
    "natural-gas-price": {
      "name": "natural-gas-price"
    },
    "oil-brent": {
      "name": "oil-brent"
    },
    "oil-inventory-zscore": {
      "name": "oil-inventory-zscore"
    },
    "oil-wti": {
      "name": "oil-wti"
    }
  }
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.prereason.com/api/commodities/oil-producers?format=json'

# 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://api.prereason.com/api/commodities/oil-producers?format=json' \
  | 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 $0.05 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.05" });
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 $0.05 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.prereason.com%2Fapi%2Fcommodities%2Foil-producers
const res = await pay("https://api.prereason.com/api/commodities/oil-producers?format=json");
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 $0.05 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.05"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://api.prereason.com/api/commodities/oil-producers?format=json")
    print(res.status_code, res.text)