Series Permits Monthly

{
  "cadence": "monthly",
  "disclaimer": "Every value carries as_of, age_days, cadence and stale (weekly measures go stale after 14 days, monthly measures after …",
  "fields": [
    "place"
  ],
  "months_available": [
    "2024-01",
    "2026-08"
  ],
  "note": "New privately owned housing units authorized by building permits, as each city or county permit office reported them. A…",
  "publisher": "Frontera Signal",
  "query": {
    "from": "2026-01",
    "place": "Brownsville"
  },
  "returned": 8,
  "rows": [
    {
      "age_days": 248,
      "as_of": "2026-01-31",
      "buildings_total": 44,
      "cadence": "monthly",
      "county": "Cameron",
      "five_plus_unit_buildings": 1,
      "five_plus_unit_units": 19,
      "month": "2026-01",
      "place": "Brownsville",
      "single_family_buildings": 43,
      "single_family_units": 43,
      "source": "public permit statistics",
      "stale": true,
      "status": "reported",
      "three_four_unit_buildings": 0,
      "three_four_unit_units": 0,
      "two_unit_buildings": 0,
      "two_unit_units": 0,
      "units_total": 62,
      "valuation_usd": 8942770
    }
  ],
  "series": "permits-monthly",
  "source": "public permit statistics",
  "title": "Housing units authorized by permit, by month",
  "year_to_date": [
    {
      "age_days": 36,
      "as_of": "2026-08-31",
      "buildings_total": 525,
      "cadence": "monthly",
      "county": "Cameron",
      "five_plus_unit_buildings": 18,
      "five_plus_unit_units": 427,
      "place": "Brownsville",
      "single_family_buildings": 505,
      "single_family_units": 505,
      "source": "public permit statistics",
      "stale": false,
      "three_four_unit_buildings": 2,
      "three_four_unit_units": 8,
      "through": "2026-08",
      "two_unit_buildings": 0,
      "two_unit_units": 0,
      "units_total": 940,
      "valuation_usd": 110314605,
      "year": 2026
    }
  ],
  "year_to_date_differs": [
    {
      "monthly_rows": 8,
      "place": "Brownsville",
      "sum_of_months_units": 768,
      "through": "2026-08",
      "year": 2026,
      "year_to_date_units": 940
    }
  ]
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://fronterasignal.com/api/v1/series/permits-monthly?from=2026-01&place=Brownsville'

# 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/series/permits-monthly?from=2026-01&place=Brownsville' \
  | 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%2Ffronterasignal.com%2Fapi%2Fv1%2Fseries%2Fpermits-monthly
const res = await pay("https://fronterasignal.com/api/v1/series/permits-monthly?from=2026-01&place=Brownsville");
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://fronterasignal.com/api/v1/series/permits-monthly?from=2026-01&place=Brownsville")
    print(res.status_code, res.text)