{"uid":"cap_VPtQDQhQ8xWrbX8IjUJiM","slug":"synthora-wayback-availability-641f92c4","name":"SYNTHORA Wayback Availability","description":"Check if a URL is archived in the Wayback Machine and get the closest snapshot timestamp and link. Content-history verification for agents. $0.01 USDC via x402. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.","url":"https://wayback.hergertsynthora.com/service","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"url":{"type":"string","description":"url"}}},"responseSchema":{"type":"json","example":{"ok":true,"niche":"wayback","result":{"url":"https://example.com","archived":false,"closest_snapshot":null},"provenance":{"url":"https://archive.org/wayback/available","source":"Wayback Availability"}}},"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_raSDRciKuBAnPT098RZm8","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":"Checks whether a given URL is archived in the Wayback Machine and returns the closest available snapshot timestamp and link","exampleAgentPrompt":"Can you check if https://example.com/old-article has ever been archived in the Wayback Machine and give me the closest snapshot link?","exampleUseCases":[{"title":"Verify deleted page still exists","prompt":"This news article link is returning a 404 — can you check if https://techcrunch.com/2019/04/15/startup-launch/ was ever captured by the Wayback Machine and get me the most recent archived version?"},{"title":"Audit competitor content history","prompt":"I want to see if https://competitor.com/pricing was ever archived in the Wayback Machine — check if it has a snapshot so I can review what their old pricing looked like."},{"title":"Fact-check sourced URL in report","prompt":"Before I submit this research report, can you verify that https://www.who.int/news/item/some-page has an archived copy in the Wayback Machine so we can confirm the source was accessible?"}],"resultDescription":"Returns a JSON object indicating whether the URL is archived (boolean), the closest available snapshot timestamp, and a direct link to that snapshot on the Wayback Machine. If no archive exists, the closest_snapshot field is null.","failureModes":["URL not archived — returns archived: false with null closest_snapshot","Malformed or missing URL input — request fails with validation error","Wayback Machine API unavailable — upstream service timeout or error","Invalid URL format passed — may return error or no results","Network timeout when reaching archive.org — upstream dependency failure"],"whenToPreferThis":"Use this endpoint when you need to quickly verify whether a specific URL has been captured by the Internet Archive's Wayback Machine and retrieve a direct link to that snapshot. It is ideal for content history verification, fact-checking archived sources, recovering deleted pages, or auditing historical web content. Prefer it over manual Wayback Machine browsing when working in an automated agent pipeline that needs a programmatic, structured response about a URL's archival status.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:30:02.474Z","isFirstParty":false}