Wikidata entity facts

Company/person/organization facts from Wikidata. Send POST /api/wikidata-entity with no required fields (2 optional) and pay $0.005 per call over x402 or MPP (there is no free tier). It returns a JSON object with found, id, label, description, aliases and 3 more.

Pass an entity id (e.g. Q312 for Apple Inc.) for the enrichment record - label, description, aliases, and a curated fact set (inception, HQ location, country, industry, founders, CEO, employees, revenue, official website, LEI, ticker + exchange, ISIN, logo; for people: birth/death dates, citizenship, occupation) with item references resolved to human-readable labels. Or pass a name to search: ambiguous names return ranked candidate matches in Wikidata's stable order. Keyless.

Category: Live public data · Tags: data wikidata entity company person enrichment knowledge-graph

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Parameters

Example request

curl -i -X POST https://agent402.tools/api/wikidata-entity \
  -H "Content-Type: application/json" \
  -d '{"id":"Q312"}'

Without payment this returns HTTP 402 Payment Required with the exact price for wikidata-entity; any x402 v2 or MPP client pays it and retries.

Example response

{
  "found": true,
  "id": "Q312",
  "label": "Apple Inc.",
  "description": "American multinational technology company",
  "aliases": [
    "Apple",
    "Apple Computer, Inc."
  ],
  "facts": {
    "inception": [
      "1976-04-01T00:00:00Z"
    ],
    "headquartersLocation": [
      {
        "id": "Q3070754",
        "label": "Apple Park"
      }
    ],
    "officialWebsite": [
      "https://www.apple.com/"
    ],
    "tickerSymbol": [
      "AAPL"
    ],
    "lei": [
      "HWUPKR0MPOU8FGXBT394"
    ]
  },
  "statementCount": 300,
  "source": "wikidata.org"
}

From an MCP client

catalog.call {
  "slug": "wikidata-entity",
  "params": {
    "id": "Q312"
  }
}

The hosted connector at https://agent402.tools/mcp needs a payment for wikidata-entity; the stdio package pays it from a wallet or from AGENT402_CREDITS_KEY. Local install: npx -y agent402-mcp.

Errors and behavior

• Every field is optional. An input the tool rejects returns an HTTP 4xx whose body carries error, tool, expected, required and example.
• A paid call that ends in any status of 400 or above is not charged over x402, MPP or a prepaid credits key: settlement is cancelled when the tool fails. The exception is a Tempo push credential, a transfer the buyer sent before the call: it settles before the tool runs, so if the tool then fails the payment is recorded as a refund owed to the paying wallet.
• Wallet-only: this tool reaches the network or stored state, so it has no proof-of-work tier. A prepaid card-credits key issued earlier (Authorization: Bearer a402_...) also pays it.
• A GET or HEAD to /api/wikidata-entity returns the same 402 quote, so the price can be read without a body.
• An Idempotency-Key header makes a retried paid call replay the first 200 instead of charging again (an answer larger than 1 MB is not replayed).

Paid call (JavaScript agent)

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client();
client.setSpendControls?.(false); // keep your own spending ceiling in code
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/wikidata-entity", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "id": "Q312"
  }),
});

Part of these workflows

Wikidata entity facts is one step in this skill pack, each sold as a single call:

• Entity enrichment - Company name → verified identity + web footprint dossier: Wikidata facts, the official LEI legal-entity record, the SEC EDGAR filer, domain registration, tech stack, and brand favicon - in one pass.

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