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Delx Commerce — Open Entities Search (Wikidata)
x402
Delx Commerce — Open Entities Search (Wikidata) is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).
Searches Wikidata's open knowledge graph for structured entity records matching a text query, returning entity IDs, labels, descriptions, and source URLs.
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
A JSON object containing the search query, provider (Wikidata), result count, and an array of matching entities. Each entity includes a Wikidata entity ID (e.g. Q43433), a human-readable label, a short description, a concept URI, and a URL to the Wikidata page. Also includes cache status, language, license URL (CC0), and attribution text.
Example use cases
Resolve city name to structured entity
“Look up 'Lyon' in the open entities knowledge graph and give me its Wikidata ID, canonical description, and source link.”
Identify historical figure entity
“Search for 'Ada Lovelace' in Wikidata's open knowledge base and return her entity ID and description — I need to enrich a dataset with canonical identifiers.”
Disambiguate an ambiguous concept name
“Find the Wikidata entity for 'Mercury' — I want up to 3 results so I can see the different meanings and pick the right one for my knowledge graph.”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/open-entities-search?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need structured, canonical entity metadata (IDs, descriptions, URIs) from Wikidata's open knowledge graph at low cost ($0.001/call) without requiring an API key or account. Prefer it over raw Wikidata API calls when you want a normalized, agent-ready response with attribution and license metadata pre-included. Best for entity resolution, knowledge graph enrichment, and named entity disambiguation tasks.
Side effects
- Empty results array if no entity matches the query string
- Timeout if provider response exceeds the configured timeout (2–8 seconds)
- Invalid input if query is empty or exceeds 120 characters
- Rate-limiting or payment failure if USDC payment via x402 is not processed correctly
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| query | string | |
| timeout | integer | |
| max_records | integer |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"cache": "miss",
"count": 1,
"query": "Fortaleza",
"scope": "open_entities",
"schema": "delx/open-entities-search/v1",
"results": [
{
"id": "Q43433",
"url": "https://www.wikidata.org/wiki/Q43433",
"label": "Fortaleza",
"concept_uri": "https://www.wikidata.org/entity/Q43433",
"description": "municipality in Brazil"
}
],
"language": "en",
"provider": "Wikidata",
"attribution": "Structured data supplied by Wikidata under CC0; preserve the entity ID and source link. This result contains public entity metadata only.",
"license_url": "https://creativecommons.org/publicdomain/zero/1.0/",
"max_records": 3,
"provider_url": "https://www.wikidata.org/"
},
"tool_name": "search_open_entities"
}
}Tags
x402
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