Entity Facts

{
  "aliases": [
    "City of Light",
    "City of Love",
    "…1 more"
  ],
  "alternatives": [],
  "asOf": "2026-10-11T08:43:16.143Z",
  "attribution": "Data: Wikidata, CC0 1.0 public domain dedication (https://www.wikidata.org/wiki/Wikidata:Licensing).",
  "degraded": false,
  "description": "capital and most populous city in France",
  "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
  "externalIdentifierStatements": 19,
  "identifiers": [
    {
      "name": "VIAF",
      "property": "P214",
      "url": "https://viaf.org/viaf/158822968",
      "value": "158822968"
    },
    {
      "name": "ISNI",
      "property": "P213",
      "url": "https://isni.org/isni/000000012114268X",
      "value": "000000012114268X"
    }
  ],
  "instanceOf": [
    {
      "id": "Q484170",
      "label": "commune of France"
    },
    {
      "id": "Q22923920",
      "label": "territorial collectivity of France with special status"
    }
  ],
  "label": "Paris",
  "lastModified": null,
  "notChecked": [
    "statements other than instance-of and the curated identifiers (use /property-value for one property)",
    "whether the entity is the thing you meant if you gave a name",
    "…1 more"
  ],
  "reasons": [],
  "resolvedVia": "id",
  "source": "Wikidata (CC0)",
  "sourceUrl": "https://www.wikidata.org",
  "statementCount": 134,
  "summary": "Q90: Paris, capital and most populous city in France.",
  "url": "https://www.wikidata.org/wiki/Q90",
  "verdict": "FOUND",
  "wikidataId": "Q90",
  "wikipedia": {
    "editions": 290,
    "english": {
      "title": "Paris",
      "url": "https://en.wikipedia.org/wiki/Paris"
    }
  }
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://wikidata-facts.x402tookit.com/entity-facts?id=Q90'

# 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/entity-facts?id=Q90' \
  | 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 $0.03 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.03" });
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 $0.03 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fwikidata-facts.x402tookit.com%2Fentity-facts
const res = await pay("https://wikidata-facts.x402tookit.com/entity-facts?id=Q90");
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 $0.03 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.03"})
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/entity-facts?id=Q90")
    print(res.status_code, res.text)