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Delx Open Entity Search
x402
Delx Open Entity Search is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-20).
Search Wikidata-backed entity metadata (stable IDs, labels, descriptions, source links) for public places, companies, and concepts
Price / call$0.001
Success—
StatusUnknown
How this service works
Search bounded Wikidata entity metadata for $0.001 USDC. Returns stable IDs, labels, descriptions and source links for public places, companies and concepts—not geocoding, navigation, contact data, personal profiling or general web search.
Output
A list of up to 10 Wikidata entity results, each containing a stable entity ID (e.g. Q-number), human-readable label, short description, and source links — bounded to public entities like places, companies, and concepts. No geocoordinates, contact info, or personal profile data.
Example use cases
Resolve company entity for data pipeline
“Look up the Wikidata entity for 'Volkswagen Group' — I need the stable entity ID, label, and description so I can link it in our knowledge graph, give me up to 5 results.”
Identify concept for automated tagging
“Search Wikidata for 'quantum entanglement' and return the top 3 entity results with their IDs and descriptions so I can use them to tag related content correctly.”
Verify public institution identity
“Can you find the Wikidata metadata for 'Smithsonian Institution'? I want the canonical entity ID and description to confirm we have the right organization in our records.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/open-entities-search?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need stable, citable Wikidata entity identifiers and descriptions for public entities (companies, places, concepts) rather than geocoordinates, navigation data, contact details, or general web search results. Prefer it over general search when you need structured linked-data metadata with canonical Q-number IDs for knowledge graph enrichment or entity resolution at low cost ($0.001 per call).
Side effects
- Query string too short or empty — returns validation error
- Wikidata upstream timeout — no results returned within the configured timeout window
- Query matches no known entities — returns empty result set
- max_records out of range (less than 1 or greater than 10) — returns schema validation error
- timeout out of range (less than 2 or greater than 8) — returns schema validation error
- Payment not processed — x402 payment required error
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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