{"uid":"cap_aufbytP8Ww4MQgj0AfoB9","slug":"centra-content-preview-991fb373","name":"Centra Content Preview","description":"Preview content for free","url":"https://centrahub.vercel.app/api/preview","method":"GET","headers":{},"bodySchema":{"type":"object","required":["id"],"properties":{"id":{"type":"string","description":"Content identifier"}}},"responseSchema":{"type":"object","properties":{"data":{"type":"object","properties":{"id":{"type":"string"},"price":{"type":"number"},"title":{"type":"string"},"preview":{"type":"string"},"createdAt":{"type":"string"},"creatorWallet":{"type":"string"}}},"success":{"type":"boolean"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"proven_free","priceSource":"registry","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":"free","summary":"Free","primary":{"kind":"free","protocol":"x402","network":"base","amountUsd":null,"per":"call","confidence":"unknown"},"accepted":[{"kind":"free","protocol":"x402","network":"base","amountUsd":null,"per":"call","confidence":"unknown"}]},"paymentMethods":[{"uid":"pm_7Vdg7nB1nNqF-jqeuJ_5d","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches a free preview of a pay-per-access content item by its content ID, returning metadata like title, price, and a preview snippet without requiring payment","exampleAgentPrompt":"Can you pull up the free preview for the Centra content with ID 'edu-intro-blockchain-101' so I can see the title, price, and snippet before deciding whether to unlock it?","exampleUseCases":null,"resultDescription":"Returns a JSON object with success flag and a data object containing the content's id, title, preview text snippet, full unlock price, creator wallet address, and creation timestamp — all accessible without payment.","failureModes":["Content ID not found returns an error or success:false with empty data","Missing required 'id' parameter causes a 400-level validation error","Invalid or malformed content ID returns a not-found response","Service unavailable on Vercel infrastructure returns 500 error"],"whenToPreferThis":"Use this endpoint when you want to inspect content metadata, title, price, and a preview snippet before committing to a payment unlock. It is the appropriate first step before calling the paid unlock endpoint, allowing agents to confirm content relevance and cost without spending any funds.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:40:35.459Z","isFirstParty":false}