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Locus Housing Supply Balance

by api.locus.report in Markets & finance

x402 APIPassing, checked 3 h ago

BLS QCEW employment change over Census BPS permitted units, the permits share of ACS housing stock, cited benchmarks, and published critiques, for an address, for agents. Returns the same records as locus_housing_supply_balance. Use this when your client can only call paid x402 routes. Use locus_housing_supply_balance instead when you can call Locus free tools (REST tools/call or MCP).

POST
https://api.locus.report/api/locus-housing-supply-balance
Price
$0.01
per call in USDC
Uptime
100%
last 30 days
Response time
1.1 s
2.9 s slowest 5%
Last check
Passed
3 h ago, next any minute now

Run a free test callHow to call it

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Status and outage history · Atom feed

How to call it

POST https://api.locus.report/api/locus-housing-supply-balance

Each call costs $0.01 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

POST https://api.locus.report/api/locus-housing-supply-balance
content-type: application/json

{
  "address": "1 E Edenton St, Raleigh, NC 27601"
}

Parameters

ParameterTypeRequiredDescription
addressstringNo
latitudenumberNo
longitudenumberNo
permitYearintegerNo

Example response

The provider's example. We can't check it without paying.

Example response, 91 lines
{
  "caveats": [
    "Reported inputs and a computed ratio only. Locus performs no comparison against any published benchmark and applies no label of its own."
  ],
  "componentStatus": [
    {
      "component": "census_bps_county",
      "status": "ok"
    }
  ],
  "employment": {
    "annualAvgEmployment": 665775,
    "basis": "place of work, UI-covered employment (BLS QCEW annual averages)",
    "netChange": 12622,
    "priorAnnualAvgEmployment": 653153,
    "priorYear": 2024,
    "year": 2025
  },
  "geo": {
    "county": "Wake County",
    "countyFips": "37183",
    "state": "NC"
  },
  "kind": "housing_supply_balance",
  "note": "Awareness/diagnostic only. Full briefs are x402-paid. Agents can discover live free tools at https://api.locus.report/tools/list and paid tools, prices, and manifests at https://api.locus.report/.well-known/ai-tool/index.json.",
  "ok": true,
  "permits": {
    "imputedShare": 0.004,
    "multifamilyUnits": 5628,
    "present": true,
    "reportedTotalUnits": 15180,
    "singleFamilyUnits": 9620,
    "totalUnits": 15248,
    "year": 2024
  },
  "point": {
    "latitude": 35.780418000003195,
    "longitude": -78.63910200000142
  },
  "provenance": {
    "employment": {
      "granularity": "county, calendar-year annual average, place of work, UI-covered employment",
      "source": "U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages - annual averages, all ownerships, county total",
      "sourceUrl": "https://www.bls.gov/cew/"
    },
    "housingStock": {
      "granularity": "county, 5-year estimate",
      "source": "U.S. Census Bureau, American Community Survey 5-year, table B25001 (total housing units)",
      "sourceUrl": "https://data.census.gov/table/ACSDT5Y2023.B25001",
      "vintage": "ACSDT5Y2023"
    },
    "permits": {
      "granularity": "county aggregate, calendar year",
      "source": "U.S. Census Bureau, Building Permits Survey - annual county file (residential units authorized by building permit)",
      "sourceUrl": "https://www.census.gov/construction/bps/"
    }
  },
  "publishedBenchmarks": [
    {
      "label": "NAHB stated balanced band, jobs per total housing unit permitted",
      "note": "NAHB describes this as a historical observation and does not source it further. NAHB computes at metro (MSA) level.",
      "source": "NAHB Eye on Housing, June 2026",
      "url": "https://eyeonhousing.org/2026/06/structural-demand-outpacing-supply-jobs-to-permits-ratios-highlight-housing-gap/",
      "value": "1.25 to 1.50"
    }
  ],
  "publishedCritiques": [
    {
      "source": "MPF Research / National Apartment Association, 2015, 'Job Growth-to-Absorption: Doesn't Add Up'",
      "summary": "NAA / MPF Research measured this ratio family at -161 to +130 jobs per unit of demand across 50 apartment markets over 14 years and called its reliability 'surprisingly bad'.",
      "url": "https://www.naahq.org/news-publications/units/october-2015-issue/article/job-growth-absorption-doesnt-add"
    }
  ],
  "ratios": {
    "convention": "jobs in year N divided by housing units permitted in year N-1 (NAHB convention; the one-year lag reflects the time permitted units take to move through construction)",
    "jobsPerMultifamilyUnitPermitted": 2.24,
    "jobsPerTotalUnitPermitted": 0.83
  },
  "status": "ok",
  "supplyPipeline": {
    "note": "Permits authorized, not units delivered.",
    "totalHousingUnits": 481999,
    "unitsPermittedAsShareOfStockPct": 3.163
  },
  "verifyNext": [
    {
      "step": "Read the county's full permit history in the Census Building Permits Survey.",
      "url": "https://www.census.gov/construction/bps/"
    }
  ]
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.01.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.locus.report/api/locus-housing-supply-balance' \
  -H 'content-type: application/json' \
  --data-raw '{"address":"1 E Edenton St, Raleigh, NC 27601"}'

# 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-housing-supply-balance' \
  -H 'content-type: application/json' \
  --data-raw '{"address":"1 E Edenton St, Raleigh, NC 27601"}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// 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%2Fapi.locus.report%2Fapi%2Flocus-housing-supply-balance&method=POST
const res = await pay("https://api.locus.report/api/locus-housing-supply-balance", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "address": "1 E Edenton St, Raleigh, NC 27601"
  }),
});
console.log(res.status, await res.text());
Python: pay and call
# 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.post(
        "https://api.locus.report/api/locus-housing-supply-balance",
        json={
            "address": "1 E Edenton St, Raleigh, NC 27601",
        },
    )
    print(res.status_code, res.text)

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