{"uid":"cap_L0l1B_3MyE81RG2mtZrwa","slug":"url-redirect-chain-follower-unshortener-a4c4de37","name":"URL Redirect Chain Follower / Unshortener","description":"Follow a short link's redirect chain (bit.ly, t.co, youtu.be, tracking links, …) without downloading any page body: returns the final URL, the final HTTP status, and every hop with its status code and Location target. Capped at 5 redirects; every hop is SSRF-re-validated, so chains that dive into private networks are blocked. Lets agents pre-flight links before fetching or citing them.","url":"https://agent402.tools/api/unshorten-url","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"url":{"type":"string","description":"The (short) URL whose redirect chain to follow"}}},"responseSchema":{"type":"json","example":{"url":"https://youtu.be/dQw4w9WgXcQ","hops":[{"url":"https://youtu.be/dQw4w9WgXcQ","status":303,"location":"https://www.youtube.com/watch?v=dQw4w9WgXcQ&feature=youtu.be"},{"url":"https://www.youtube.com/watch?v=dQw4w9WgXcQ&feature=youtu.be","status":200,"location":null}],"finalUrl":"https://www.youtube.com/watch?v=dQw4w9WgXcQ&feature=youtu.be","redirects":1,"truncated":false,"finalStatus":200}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_07ti5fHPav2kPCRz5ueaT","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Follows a short or tracking URL's full redirect chain and returns the final destination URL, each hop's status code, and the terminal HTTP status — without downloading any page content.","exampleAgentPrompt":"Can you trace where this link actually goes without opening it? https://bit.ly/3xAbc12 — I want to see every redirect hop and the final destination URL.","exampleUseCases":null,"resultDescription":"Returns the final resolved URL, its HTTP status code, and a list of each intermediate redirect hop with its status code and Location target. Capped at 5 hops. No page body content is downloaded.","failureModes":["URL exceeds 5 redirect hops — chain truncated at the cap","Invalid or malformed URL input","Target server is unreachable or times out","Non-redirect URL returns immediately with the original URL as final","DNS resolution failure for the short domain"],"whenToPreferThis":"Use this endpoint when you need to safely inspect where a shortened, obfuscated, or tracking URL leads without fetching page content. Ideal for security checks on suspicious links, verifying affiliate or tracking URLs, or confirming a short link's destination before sharing or acting on it.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:55:57.489Z","isFirstParty":false}