Materials

{
  "cadence": "twice a week",
  "count": 20,
  "data_through": "2026-10-01",
  "dataset": "materials",
  "disclaimer": "Every value carries as_of, age_days, cadence and stale (weekly measures go stale after 14 days, monthly measures after …",
  "first_observed": "2026-08-27",
  "latest": [
    {
      "age_days": 10,
      "city": null,
      "item": "OSB 7/16 in, 4x8 sheet",
      "item_key": "osb_7_16_4x8",
      "observed": "2026-10-01",
      "outlet_id": "BB-91a314",
      "price_usd": 13.48,
      "product": "OSB 7/16 4x8",
      "source": "Frontera Signal",
      "store": "big-box",
      "unit": "sheet"
    }
  ],
  "note": "store is big-box or local yard; outlet_id tells two stores of the same kind apart. city is null where the check did not…",
  "publisher": "Frontera Signal",
  "query": {
    "item": "osb"
  },
  "region": "Rio Grande Valley, Texas",
  "rows": [
    {
      "city": null,
      "item": "OSB 7/16 in, 4x8 sheet",
      "item_key": "osb_7_16_4x8",
      "observed": "2026-10-01",
      "outlet_id": "BB-91a314",
      "price_usd": 13.48,
      "product": "OSB 7/16 4x8",
      "source": "Frontera Signal",
      "store": "big-box",
      "unit": "sheet"
    }
  ],
  "rule": "Only single-unit shelf prices. Volume-only and volume-tier prices are counted as misses, never as prices.",
  "source": "Frontera Signal"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://fronterasignal.com/api/v1/materials?item=osb'

# 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://fronterasignal.com/api/v1/materials?item=osb' \
  | 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%2Ffronterasignal.com%2Fapi%2Fv1%2Fmaterials
const res = await pay("https://fronterasignal.com/api/v1/materials?item=osb");
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://fronterasignal.com/api/v1/materials?item=osb")
    print(res.status_code, res.text)