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Locus Market Context

by api.locus.report in Markets & finance

x402 APIPassing, checked 43 min ago

Returns the same Realtor.com-on-FRED listing series and ACS home value and rent as the free route, for agents comparing a county and ZIP. Returns the same records as locus_market_context. Use this when your client can only call paid x402 routes. Use locus_market_context instead when you can call Locus free tools (REST tools/call or MCP).

POST
https://api.locus.report/api/locus-market-context
Price
$0.01
per call in USDC
Uptime
100%
last 30 days
Response time
1.4 s
3.5 s slowest 5%
Last check
Passed
43 min 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-market-context

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-market-context
content-type: application/json

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

Parameters

ParameterTypeRequiredDescription
addressstringNo
latitudenumberNo
longitudenumberNo

Example response

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

Example response, 84 lines
{
  "accessedAt": "2026-09-09T01:56:39.673Z",
  "acs": {
    "levels": [
      {
        "id": "27601",
        "level": "zcta",
        "medianGrossRentUsd": 1499,
        "medianHomeValueUsd": 572600,
        "name": "ZCTA5 27601",
        "status": "ok"
      },
      {
        "id": "37183",
        "level": "county",
        "medianGrossRentUsd": 1508,
        "medianHomeValueUsd": 422800,
        "name": "Wake County, North Carolina",
        "status": "ok"
      },
      {
        "id": "37",
        "level": "state",
        "medianGrossRentUsd": 1162,
        "medianHomeValueUsd": 259400,
        "name": "North Carolina",
        "status": "ok"
      }
    ],
    "source": {
      "name": "U.S. Census Bureau ACS 2023 5-year, tables B25077 and B25064",
      "url": "https://data.census.gov/table/ACSDT5Y2023.B25077"
    }
  },
  "caveats": [
    "Listing prices describe what is offered, not what sold; use locus_parcel_transfers for recorded sales where the state discloses them.",
    "ACS medians lag one to two years; the FRED series are current to the last full month.",
    "Locus does not appraise, estimate a parcel's value, or rank markets."
  ],
  "county": {
    "activeListings": {
      "asOf": "2026-08-01",
      "latest": 4271,
      "yearAgo": 4012,
      "yearChangePct": 6.5
    },
    "medianDaysOnMarket": {
      "asOf": "2026-08-01",
      "latest": 58,
      "yearAgo": 51,
      "yearChangePct": 13.7
    },
    "medianListingPriceUsd": {
      "asOf": "2026-08-01",
      "latest": 493332,
      "yearAgo": 499000,
      "yearChangePct": -1.1
    },
    "source": {
      "name": "Realtor.com Residential Listings Database via FRED (county series MEDLISPRI, ACTLISCOU, MEDDAYONMAR)",
      "url": "https://fred.stlouisfed.org/series/MEDLISPRI37183"
    }
  },
  "estimateBasis": "County listing level and pace from Realtor.com series on FRED (monthly), plus survey medians for owner-occupied value and gross rent at ZIP, county, and state. Market context, not a valuation of any parcel.",
  "geo": {
    "county": "Wake County",
    "state": "NC",
    "zip": "27601"
  },
  "kind": "market_context",
  "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,
  "point": {
    "latitude": 35.780418000003195,
    "longitude": -78.63910200000142
  },
  "status": "ok",
  "verifyNext": [
    {
      "step": "For a parcel-level rent or comps figure see locus-rent-estimate and locus-comps-brief (paid, vendor-backed).",
      "url": "https://api.locus.report/.well-known/ai-tool/index.json"
    }
  ]
}

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-market-context' \
  -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-market-context' \
  -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-market-context&method=POST
const res = await pay("https://api.locus.report/api/locus-market-context", {
  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-market-context",
        json={
            "address": "1 E Edenton St, Raleigh, NC 27601",
        },
    )
    print(res.status_code, res.text)

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