{"uid":"cap_zNP6rCV-8vFl4g1kMQqy0","slug":"delx-commerce-open-knowledge-search-6fd539c6","name":"Delx Commerce — Open Knowledge Search","description":"Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.","url":"https://commerce.delx.ai/api/v1/x402/open-knowledge-search?utm_source=zero.xyz","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_w-o_jfhiaDgv7aL_fAWv_","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":"Searches Wikipedia/Wikimedia open knowledge base and returns attributed snippets for a given query, billed per-result via x402/USDC.","exampleAgentPrompt":"Search Wikipedia for 'agentic commerce' and give me up to 5 results with titles, snippets, and source links — I need proper attribution included.","exampleUseCases":[{"title":"Fact-checking agent research pipeline","prompt":"Can you look up 'quantum entanglement' on Wikipedia and pull back 3 results with snippets so I can verify the facts in this article?"},{"title":"Background research on historical figure","prompt":"Search open knowledge sources for 'Ada Lovelace' and get me up to 10 results with titles and snippets — I need the full attribution info too."},{"title":"Encyclopedic context for product descriptions","prompt":"Find me Wikipedia information about 'arabica coffee' — give me 5 results with snippets and make sure the license attribution is included so we can use it properly."}],"resultDescription":"Returns a JSON object containing the query scope, provider (Wikimedia/Wikipedia), cache hit/miss status, language, up to 10 results each with URL, title, page ID, and snippet, plus full attribution text, license URL, and provider URL for proper downstream attribution compliance.","failureModes":["Query too short (minLength:1 not met) or too long (maxLength:120 exceeded) — validation error","Timeout too short or too large (must be 2–8 seconds) — validation error","Wikipedia/Wikimedia provider unavailable — may return empty results or error","No matching results found — returns count:0 with empty results array","Payment failure via x402 protocol — request not processed","Rate limiting or network timeout within the configured timeout window"],"whenToPreferThis":"Prefer this endpoint when you need quickly attributed, open-licensed encyclopedic content from Wikipedia without requiring a signup or subscription. Ideal for agents that need verifiable, citable knowledge snippets with proper license attribution (CC BY-SA 4.0) billed only per successful call. Choose this over general web search when you specifically want encyclopedic depth and guaranteed attribution metadata rather than broad web results.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-01T00:53:51.972Z","isFirstParty":false,"canonicalSlug":"delx-commerce-open-knowledge-search-6fd539c6"}