Locus Metro Permits

{
  "caveats": [],
  "city": "chicago",
  "closeoutCapability": {
    "closeoutEligible": true,
    "completeCurrentOpenUniverse": true,
    "exactAddressSupported": false,
    "geographicScope": "City of Chicago building permits",
    "matchCapabilities": [],
    "publishedEvidenceTypes": [],
    "sourceId": "chicago-building-permits-closeout",
    "sourceName": "City of Chicago Building Permits",
    "sourceUrl": "https://data.cityofchicago.org/Buildings/Building-Permits/ydr8-5enu",
    "verifiedAt": "2026-09-02"
  },
  "matched": true,
  "nationalCountyPermitTrend": {
    "caveats": [],
    "direction": "falling",
    "latest": {
      "multifamilyUnits": 3778,
      "present": true,
      "reportedTotalUnits": 4897,
      "singleFamilyUnits": 1191,
      "totalUnits": 4969,
      "year": 2025
    },
    "matched": true,
    "provenance": {
      "granularity": "county aggregate (annual), not address-level permit records",
      "source": "U.S. Census Bureau, Building Permits Survey - annual county file (residential units authorized by building permit)",
      "sourceUrl": "https://www.census.gov/construction/bps/"
    },
    "resolvedCounty": {
      "countyFips3": "031",
      "countyFips5": "17031",
      "countyName": "Cook County",
      "stateAbbr": "IL",
      "stateFips": "17"
    },
    "years": []
  },
  "note": "Awareness/diagnostic only. Full briefs are x402-paid. Agents can discover live free tools at https://api.locus.report...",
  "ok": true,
  "openOrExpiredPermitCount": 20,
  "openOrExpiredPermitRecords": [],
  "overhangs": [],
  "permits": [],
  "provenance": {
    "coverage": "chicago, austin, seattle, san francisco, los angeles, new york, mesa, miami, nashville, washington, san antonio, phoe...",
    "datasetPage": "https://data.cityofchicago.org/Buildings/Building-Permits/ydr8-5enu",
    "source": "City open-data permit datasets, Socrata + ArcGIS (verified: chicago, austin, seattle, san francisco, los angeles, new..."
  },
  "radiusMeters": 500,
  "sinceDate": "2025-09-23",
  "verifyNext": []
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.locus.report/api/locus-metro-permits' \
  -H 'content-type: application/json' \
  --data-raw '{"city":"chicago","latitude":41.8827,"longitude":-87.6233,"radiusMeters":500}'

# 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 - -X POST 'https://api.locus.report/api/locus-metro-permits' \
  -H 'content-type: application/json' \
  --data-raw '{"city":"chicago","latitude":41.8827,"longitude":-87.6233,"radiusMeters":500}' \
  | 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.locus.report%2Fapi%2Flocus-metro-permits&method=POST
const res = await pay("https://api.locus.report/api/locus-metro-permits", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "city": "chicago",
    "latitude": 41.8827,
    "longitude": -87.6233,
    "radiusMeters": 500
  }),
});
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.post(
        "https://api.locus.report/api/locus-metro-permits",
        json={
            "city": "chicago",
            "latitude": 41.8827,
            "longitude": -87.6233,
            "radiusMeters": 500,
        },
    )
    print(res.status_code, res.text)