{"uid":"cap_d_CbWFqxOIfcgdTt2-P4R","slug":"x402-word-definition-lookup-182026e5","name":"x402 Word Definition Lookup","description":"66 pay-per-call APIs: AI text/image generation ($0.01), Polymarket odds, crypto prices, DeFi yields, FX rates, weather, IP/geo, FBI wanted, SEC tickers, clinical trials, 250M academic papers, Stack Overflow, meme-coin launchpads (pump.fun, Clanker, Four.meme, SunPump), tokenized stocks, Solana top 100, and 40+ more. $0.005/call standard. USDC on Base and Solana via x402.","url":"https://workspace-x402-paywall.onrender.com/ref/define?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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","required":["word"],"properties":{"word":{"type":"string","description":"Requires an English word string, e.g. hello"}}}},"additionalProperties":false}}},"responseSchema":{"type":"object"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_RfWfmJ1b_TCEiCIRCXi5R","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a dictionary definition for a given word, paid per-call via x402 USDC micropayment at $0.005 per request","exampleAgentPrompt":"Can you look up the definition of the word 'ephemeral' for me?","exampleUseCases":[{"title":"Writer checking unfamiliar vocabulary","prompt":"What does the word 'sycophant' mean? I want the full definition."},{"title":"Student researching etymology and meaning","prompt":"Can you define the word 'epistemology' for me so I can use it correctly in my philosophy paper?"},{"title":"Developer filtering definition fields","prompt":"Look up the definition of 'algorithm' and return just the name and definition fields."}],"resultDescription":"A JSON object containing the definition and related metadata for the requested word, optionally filtered to specific fields like name, definition, part of speech, or etymology.","failureModes":["Missing 'word' parameter returns a 400 error","Unknown or misspelled word may return empty or null result","Payment not included or insufficient USDC triggers 402 Payment Required","Network timeout on the hosted Render service under cold-start conditions"],"whenToPreferThis":"Choose this endpoint when you need a pay-per-use dictionary definition lookup without a subscription, especially when integrating into an agent that only occasionally needs word definitions and wants to pay $0.005 USDC per call via x402 on Base or Solana mainnet rather than maintaining a paid dictionary API key.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T18:41:53.714Z","isFirstParty":false,"canonicalSlug":"x402-word-definition-lookup-182026e5"}