Parcel

{
  "age_days": 237,
  "as_of": "2026-02-11",
  "cadence": "read live per call",
  "county": "Hidalgo County, Texas",
  "dataset": "parcel",
  "disclaimer": "Every value carries as_of, age_days, cadence and stale (weekly measures go stale after 14 days, monthly measures after …",
  "flood": {
    "checked": "2026-10-06",
    "meaning": "Hidalgo County has no digital flood insurance rate map, so the public flood map has no zone to read for this parcel. Th…",
    "source": "public flood map",
    "status": "no_digital_firm",
    "zone": null
  },
  "match_count": 1,
  "matched_by": "situs_address",
  "note": "Read from the county parcel records at the time of the call. as_of is the date those records were last updated. Several…",
  "parcels": [
    {
      "building_sqft": 35000,
      "deed_type": "CORP-ADMT",
      "exemptions": [],
      "land_acres": 2.9555,
      "last_deed_date": "2004-03-29",
      "legal_description": "HIDALGO CANAL CO-MC N 1/2 LOT 1 EXC NEC 125 X 150 NW 1/4 BLK 7 2.99 AC NET",
      "map_id": "H2550-00-007-0001-26",
      "owner": "WRI JACKSON WEST LP",
      "parcel_id": "189432",
      "property_class": "F1",
      "property_class_label": "commercial real property",
      "situs": "800 S 10TH ST, MCALLEN TX",
      "taxing_units": [
        "CAD"
      ],
      "validation": "full",
      "values": {
        "appraised_value_usd": 3223000,
        "as_of": "2026-02-11",
        "assessed_value_usd": 3223000,
        "improvement_value_usd": 1072992,
        "land_value_usd": 2150008,
        "market_value_usd": 3223000,
        "note": "The latest values in the county parcel records as of as_of. The tax year they belong to is not confirmed, so check the …",
        "tax_year": null
      },
      "year_built": 1982
    }
  ],
  "point": {
    "lat": 26.195754,
    "lon": -98.232595
  },
  "publisher": "Frontera Signal",
  "query": {
    "address": "800 S 10th St",
    "city": "McAllen"
  },
  "source": "county parcel records"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://fronterasignal.com/api/v1/parcel?address=800+S+10th+St&city=McAllen'

# 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/parcel?address=800+S+10th+St&city=McAllen' \
  | 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 $0.04 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.04" });
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 $0.04 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Ffronterasignal.com%2Fapi%2Fv1%2Fparcel
const res = await pay("https://fronterasignal.com/api/v1/parcel?address=800+S+10th+St&city=McAllen");
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 $0.04 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.04"})
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/parcel?address=800+S+10th+St&city=McAllen")
    print(res.status_code, res.text)