Place Profile

{
  "alternatives": [
    {
      "description": "airport in Denver, Colorado, United States",
      "id": "Q330015",
      "label": "Denver International Airport"
    }
  ],
  "asOf": "2026-10-11T08:44:06.173Z",
  "attribution": "Data: Wikidata, CC0 1.0 public domain dedication (https://www.wikidata.org/wiki/Wikidata:Licensing).",
  "degraded": false,
  "description": "consolidated city-county and capital of the U.S. state of Colorado",
  "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
  "facts": {
    "areaKm2": {
      "asOf": "2016",
      "property": "P2046",
      "unit": "km2",
      "value": 401.36
    },
    "coordinates": {
      "property": "P625",
      "value": {
        "lat": 39.73917,
        "lon": -104.98472
      }
    },
    "country": {
      "property": "P17",
      "values": [
        {
          "id": "Q30",
          "label": "United States"
        }
      ]
    },
    "elevationM": {
      "property": "P2044",
      "value": 1609
    },
    "instanceOf": {
      "property": "P31",
      "values": [
        {
          "id": "Q3301053",
          "label": "consolidated city-county"
        },
        {
          "id": "Q1549591",
          "label": "big city"
        }
      ]
    },
    "locatedIn": {
      "property": "P131",
      "values": [
        {
          "id": "Q1261",
          "label": "Colorado"
        }
      ]
    },
    "population": {
      "asOf": "2020",
      "property": "P1082",
      "rank": "preferred",
      "value": 715522
    },
    "timeZone": {
      "property": "P421",
      "values": []
    }
  },
  "label": "Denver",
  "missing": [
    "timeZone (P421)"
  ],
  "notChecked": [
    "whether the population is a recent census or an old estimate beyond the date shown",
    "boundaries and administrative changes since the statement was entered",
    "…1 more"
  ],
  "reasons": [
    "Not stated in Wikidata: timeZone (P421).",
    "Coordinates use the Earth globe (Q2) when stated; population is the latest dated statement (preferred rank first)."
  ],
  "resolvedVia": "search",
  "source": "Wikidata (CC0)",
  "sourceUrl": "https://www.wikidata.org",
  "summary": "Denver (Q16554): United States; population 715,522 (2020); at 39.73917, -104.98472.",
  "url": "https://www.wikidata.org/wiki/Q16554",
  "verdict": "PROFILE_WITH_GAPS",
  "wikidataId": "Q16554"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://wikidata-facts.x402tookit.com/place-profile?hint=Colorado&place=Denver'

# 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://wikidata-facts.x402tookit.com/place-profile?hint=Colorado&place=Denver' \
  | 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 $0.04 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.04" });
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 $0.04 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fwikidata-facts.x402tookit.com%2Fplace-profile
const res = await pay("https://wikidata-facts.x402tookit.com/place-profile?hint=Colorado&place=Denver");
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 $0.04 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.04"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://wikidata-facts.x402tookit.com/place-profile?hint=Colorado&place=Denver")
    print(res.status_code, res.text)