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Delx Open Knowledge Search
x402
Delx Open Knowledge Search is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Search English Wikipedia metadata via the Wikimedia API, returning attributed page links and short snippets for a given query at $0.001 USDC per call.
Price / call$0.001
Success—
StatusUnknown
How this service works
Search bounded English Wikipedia metadata for $0.001 USDC through the public Wikimedia API. Returns attributed page links and short snippets only—not general web search, arbitrary URLs, or article bodies.
Output
Returns up to 10 Wikipedia search results, each containing an attributed page title, a URL link to the Wikipedia article, and a short descriptive snippet extracted from the page metadata. Results come from English Wikipedia only and do not include full article bodies.
Example use cases
Quick fact-check with citation
“Look up 'photosynthesis' on Wikipedia and return a few article links with snippets so I can verify the definition and cite a source.”
Background research on a historical event
“Search Wikipedia for 'Battle of Stalingrad' and give me up to 10 results with page links and summaries so I can get a quick overview.”
Identify a company or organization
“Search Wikipedia for 'DeepMind' and return attributed page links with snippets — I want to confirm what kind of organization it is and get a credible reference link.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/open-knowledge-searchWhen to prefer
Choose this endpoint when you need quick, attributed, factual reference links and snippets from English Wikipedia — ideal for fact-checking, citation gathering, or background research where source attribution matters. Prefer this over general web search when you specifically want encyclopedia-quality, Wikimedia-sourced results. Not suitable for retrieving full article text, arbitrary web pages, or non-Wikipedia sources.
Side effects
- Query string is empty or exceeds 120 characters — validation error returned
- Wikimedia API upstream timeout if timeout parameter is too low (minimum 2 seconds)
- No matching Wikipedia articles found — empty results array returned
- Payment failure or insufficient USDC balance — x402 payment required error
- Rate limiting or upstream Wikimedia API unavailability — service error returned
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": "agentic commerce",
"scope": "open_knowledge",
"schema": "delx/open-knowledge-search/v1",
"results": [
{
"url": "https://en.wikipedia.org/wiki/Example_topic",
"title": "Example topic",
"pageid": 123,
"snippet": "A short attributed search snippet."
}
],
"language": "en",
"provider": "Wikimedia/Wikipedia",
"attribution": "Search metadata supplied by Wikimedia/Wikipedia; snippets remain under the applicable page licenses. Preserve attribution and the license link.",
"license_url": "https://creativecommons.org/licenses/by-sa/4.0/",
"max_records": 3,
"provider_url": "https://www.wikipedia.org/"
},
"tool_name": "search_open_knowledge"
}
}Tags
x402
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