75trust / 100

Property Context

by HubVibe in Markets & finance

x402 APIPassing, checked 51 min ago

Real estate data for any US address: FEMA flood and 17 other hazard risk ratings with expected annual loss, median home value, rent, income, ownership and vacancy (Census), price trend (FHFA), fair market rents (HUD), nearby public schools (NCES), walkability (EPA) and Superfund sites nearby, plus tract, county, ZIP and districts, all from federal sources in one call. Input: address, or lat and lng.

POST https://hubvibe-io.com/work/property/context

Last 30 days

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Status and outage history · Atom feed

Uptime
100%
Response time
362 ms typical, 640 ms slowest 5%
Last check
51 min ago
Next check
any minute now

How to call it

POST https://hubvibe-io.com/work/property/context

Each call costs $0.25 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://hubvibe-io.com/work/property/context
content-type: application/json

{
  "address": "4600 Silver Hill Rd, Washington, DC 20233"
}

Parameters

ParameterTypeRequiredDescription
addressstringNo
languagestringNo
latnumberNo
lngnumberNo
school_radius_kmnumberNo
superfund_radius_kmnumberNo

Example response

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

Example response, 119 lines
{
  "attribution": [
    {
      "text": "Translated by Google",
      "url": "https://translate.google.com"
    }
  ],
  "price_usd": 0.25,
  "provenance": {
    "attempts": 1,
    "elapsed_ms": 340,
    "providers_used": [
      "coinbase-advanced-trade-public"
    ],
    "steps": [
      {
        "ms": 312,
        "ok": true,
        "provider": "coinbase-advanced-trade-public",
        "reason": "provider_timeout",
        "step": "quote"
      }
    ]
  },
  "receipt_id": "rcpt_9f1c2b3a4d5e6f70",
  "receipt_url": "/work/receipts/rcpt_9f1c2b3a4d5e6f70",
  "result": {
    "checked_at": "2026-09-26T18:00:00Z",
    "fair_market_rent": {
      "area": "Washington-Arlington-Alexandria, DC-VA-MD HUD Metro FMR Area",
      "four_bedroom": 3332,
      "one_bedroom": 2015,
      "studio": 1953,
      "three_bedroom": 2835,
      "two_bedroom": 2246,
      "zip": {
        "four_bedroom": 3070,
        "one_bedroom": 1860,
        "studio": 1720,
        "three_bedroom": 2610,
        "two_bedroom": 2070,
        "zip": "20746"
      }
    },
    "geography": {
      "block_group": "240338024052",
      "congressional_district": "Congressional District 4",
      "county": "Prince George's County",
      "county_fips": "24033",
      "metro": "Washington-Arlington-Alexandria, DC-VA-MD-WV Metro Area",
      "metro_code": "47900",
      "place": "Suitland CDP",
      "school_district": "Prince George's County Public Schools",
      "state": "Maryland",
      "state_fips": "24",
      "tract": "24033802405",
      "zip": "20746"
    },
    "hazard_risk": {
      "community_resilience": "Relatively Low",
      "expected_annual_loss_usd": 401271,
      "hazards": {
        "heat_wave": "Relatively Moderate",
        "hurricane": "Relatively Low",
        "riverine_flooding": "Very Low"
      },
      "notice": "This product uses the Federal Emergency Management Agency's National Risk Index...",
      "overall_rating": "Very Low",
      "overall_score": 7.41,
      "social_vulnerability": "Relatively High",
      "version": "December 2025"
    },
    "housing": {
      "level": "census tract",
      "median_gross_rent": 1486,
      "median_home_value": 332200,
      "median_home_value_moe": 24540,
      "median_household_income": 70286,
      "median_year_built": 1969,
      "owner_occupied_pct": 30.3,
      "population": 3053,
      "survey": "ACS 5-year estimates 2020-2024 (Census Bureau)",
      "vacancy_pct": 16.8
    },
    "input": {
      "address": "4600 Silver Hill Rd, Washington, DC 20233",
      "lat": 38.845,
      "lng": -76.928
    },
    "lat": 38.84505589808,
    "lng": -76.92836638093,
    "matched_address": "4600 SILVER HILL RD, WASHINGTON, DC, 20233",
    "notes": [],
    "price_trend": {
      "annual_change_pct": 9.46,
      "five_year_change_pct": 28.31,
      "latest_year": 2025,
      "source": "FHFA House Price Index, annual, census tract"
    },
    "school_radius_km": 1.5,
    "schools": [],
    "sections_failed": [],
    "sources": [
      {
        "name": "FEMA National Flood Hazard Layer",
        "url": "https://www.fema.gov/flood-maps/national-flood-hazard-layer"
      }
    ],
    "superfund_radius_km": 5,
    "superfund_sites": [],
    "walkability": {
      "block_group": "240338024051",
      "index": 11.33,
      "meters_to_transit": 926.71
    }
  },
  "status": "ok",
  "worker": "property.context"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.25.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://hubvibe-io.com/work/property/context' \
  -H 'content-type: application/json' \
  --data-raw '{"address":"4600 Silver Hill Rd, Washington, DC 20233"}'

# 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://hubvibe-io.com/work/property/context' \
  -H 'content-type: application/json' \
  --data-raw '{"address":"4600 Silver Hill Rd, Washington, DC 20233"}' \
  | 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 $0.25 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.25" });
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 $0.25 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fhubvibe-io.com%2Fwork%2Fproperty%2Fcontext&method=POST
const res = await pay("https://hubvibe-io.com/work/property/context", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "address": "4600 Silver Hill Rd, Washington, DC 20233"
  }),
});
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 $0.25 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.25"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://hubvibe-io.com/work/property/context",
        json={
            "address": "4600 Silver Hill Rd, Washington, DC 20233",
        },
    )
    print(res.status_code, res.text)

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

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51 min agoPassed402732 ms$0.25
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