{"uid":"cap_KqEOQHBwgbTCicSveGqMI","slug":"polyform-wikipedia-summary-api-cd8c0728","name":"Polyform Wikipedia Summary API","description":"Pay-per-call data endpoints for AI agents. USDC on Base via x402. No account, no API key — one micropayment per call.","url":"https://api.polyform.org/v1/wiki/summary?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"url":"https://en.wikipedia.org/wiki/Ethereum","title":"Ethereum","extract":"Ethereum is a decentralized…"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_jEQhjivSZuZYwD6XXcQmm","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches a concise plain-text summary of a Wikipedia article for a given topic, paid per call via USDC micropayment","exampleAgentPrompt":"Can you pull the Wikipedia summary for Ethereum so I can get a quick plain-English overview of what it is?","exampleUseCases":[{"title":"Quick concept briefing for a report","prompt":"I'm writing about proof-of-work consensus — can you grab the Wikipedia summary for 'Proof of work' so I have a solid one-paragraph definition to start from?"},{"title":"Entity enrichment in a research pipeline","prompt":"I have a list of company names from a dataset — can you fetch the Wikipedia summary for 'Anthropic' so I can understand what kind of company it is before I process the rest?"},{"title":"Chatbot factual grounding","prompt":"My assistant needs a reliable background blurb on the Eiffel Tower — can you get the Wikipedia extract for it so the response is factually grounded?"}],"resultDescription":"Returns a JSON object containing the canonical Wikipedia article URL, the article title, and a plain-text extract (introductory summary paragraph) for the requested topic.","failureModes":["Topic not found on Wikipedia — may return empty extract or 404-equivalent","Ambiguous topic resolves to wrong Wikipedia article","Wikipedia API temporarily unavailable — timeout or upstream error","Payment failure via x402 — call not executed if micropayment is rejected"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, factual encyclopedic summary of a well-known topic without setting up an API key or subscription. Ideal for agents doing one-off or low-volume lookups where per-call micropayment pricing is more economical than a monthly plan. Prefer over raw Wikipedia API calls when you want a clean, normalized response with no setup overhead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T18:17:25.371Z","isFirstParty":false,"canonicalSlug":"polyform-wikipedia-summary-api-cd8c0728"}