{"uid":"cap_i--1laBCwgqX1eHhfGNns","slug":"delx-open-knowledge-search-d65a9b96","name":"Delx Open Knowledge Search","description":"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.","url":"https://api.delx.ai/api/v1/x402/open-knowledge-search","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"query":{"type":"string","maxLength":120,"minLength":1},"timeout":{"type":"integer","default":8,"maximum":8,"minimum":2},"max_records":{"type":"integer","default":10,"maximum":10,"minimum":1}}},"responseSchema":{"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"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_paeogQeF5r7pLWi5eoOD7","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"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.","exampleAgentPrompt":"Search Wikipedia for 'Marie Curie' and give me up to 5 article links with short snippets so I can find the right reference.","exampleUseCases":[{"title":"Quick fact-check with citation","prompt":"Look up 'photosynthesis' on Wikipedia and return a few article links with snippets so I can verify the definition and cite a source."},{"title":"Background research on a historical event","prompt":"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."},{"title":"Identify a company or organization","prompt":"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."}],"resultDescription":"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.","failureModes":["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"],"whenToPreferThis":"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.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:44:22.381Z","isFirstParty":false}