Knowledge · x402

wikidata-entity

Wikidata entity lookup by Q-id or search text: label, description, aliases in a chosen language, key claims (instance of, country, coordinates, inception, website, population, HQ, founders, industry, identifiers such as LEI/ticker/ISNI…) with resolved labels, Wikipedia link.

0.002 USDC / call · {atomic} atomic · 2000 atomic

Endpoint

GET|POST https://forge-tools.dentreprise.workers.dev/api/wikidata-entity

Parameters

Name	Required	Type	Description
`id`	Optional	string	Q-id
`q`	Optional	string	Search text (alternative)
`lang`	Optional	string	Language code, default en

Example request (unpaid — expect 402)

curl -sS -D - "https://forge-tools.dentreprise.workers.dev/api/wikidata-entity?q=Annecy&lang=fr"

Example 402 challenge

The same object is also sent as a base64 PAYMENT-REQUIRED header. Amounts are atomic USDC units (6 decimals).

{
  "x402Version": 2,
  "error": "Payment required",
  "resource": {
    "url": "https://forge-tools.dentreprise.workers.dev/api/wikidata-entity",
    "description": "Wikidata entity lookup by Q-id or search text: label, description, aliases in a chosen language, key claims (instance of, country, coordinates, inception, website, population, HQ, founders, industry, identifiers such as LEI/ticker/ISNI…) with resolved labels, Wikipedia link.",
    "mimeType": "application/json"
  },
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "payTo": "0x7B8bf45ac6AcbA6D4CFB626b57D3f5fF3C9C89F7",
      "maxTimeoutSeconds": 120,
      "extra": {
        "name": "USD Coin",
        "version": "2"
      }
    }
  ]
}

Retry with payment

curl -sS "https://forge-tools.dentreprise.workers.dev/api/wikidata-entity?q=Annecy&lang=fr" \
  -H "PAYMENT-SIGNATURE: $PAYMENT"

Example response

{
  "id": "Q50189",
  "label": "Annecy",
  "claims": {
    "country": [
      {
        "id": "Q142",
        "label": "France"
      }
    ]
  }
}