Price Outlooks

{
  "as_of": "2026-08-17T12:00:00.000Z",
  "contract": "asset-price/1",
  "filters": {
    "anchor": "weekly",
    "asset": "wti",
    "asset_class": null
  },
  "series": [
    {
      "anchor_type": "weekly",
      "asset_class": "commodity",
      "asset_key": "commodity:wti",
      "basis_groups": [],
      "contributing_venues": [],
      "display_name": "WTI crude oil",
      "is_primary_horizon": true,
      "maturity": "experimental",
      "mode": "signal",
      "outlook": null,
      "price_review": null,
      "price_signals": [],
      "series_id": "commodity:wti:price-outlook:weekly",
      "spot_at_obs": null
    }
  ],
  "series_count": 1
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://quotient-api-gateway.onrender.com/api/v1/price-outlooks?anchor=weekly&asset=wti'

# 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://quotient-api-gateway.onrender.com/api/v1/price-outlooks?anchor=weekly&asset=wti' \
  | 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 $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
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 $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fquotient-api-gateway.onrender.com%2Fapi%2Fv1%2Fprice-outlooks
const res = await pay("https://quotient-api-gateway.onrender.com/api/v1/price-outlooks?anchor=weekly&asset=wti");
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 $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://quotient-api-gateway.onrender.com/api/v1/price-outlooks?anchor=weekly&asset=wti")
    print(res.status_code, res.text)