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URL Redirect Chain Resolver
x402
URL Redirect Chain Resolver is a paid API for AI agents from atomic-verify-claim-poc.topadvancement-atomic.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Resolves a URL through all HTTP redirects and returns the full redirect chain, per-hop status codes, final destination URL, and redirect safety findings.
Price / call$0.01
Success—
StatusUnknown
How this service works
Resolve an HTTP or HTTPS URL through redirects and return the complete redirect chain, HTTP status for each hop, final URL, and redirect safety findings. Use when an agent needs to determine where a URL actually leads before visiting, citing, downloading, or trusting it.
Output
A structured response containing the complete ordered redirect chain with each intermediate URL and its HTTP status code, the final resolved URL after all redirects, the total number of hops, and any redirect safety findings (e.g. suspicious domain changes, mixed HTTP/HTTPS transitions, or redirect loops).
Example use cases
Vetting a shortened link before sharing
“I got this URL in an email: http://tinyurl.com/yz4abc — can you follow all its redirects and tell me the final destination and whether anything looks sketchy along the way?”
Verifying a citation URL before publishing
“I'm about to cite this URL in my report but I want to make sure it still resolves correctly and doesn't redirect through any shady domains — can you trace the full redirect chain for https://example-journal.org/papers/2024/study?”
Checking redirect safety before file download
“Can you check where https://dl.someservice.io/download/installer.exe actually redirects to before I download it? I want to see every hop and any safety warnings.”
Technical details
Endpoint
POSThttps://atomic-verify-claim-poc.topadvancement-atomic.workers.dev/api/resolve-redirect-chainWhen to prefer
Choose this endpoint when an agent needs to know the true destination of a URL before acting on it — especially for untrusted links from emails, social media, or user input. It is the right choice when redirect safety matters: detecting phishing chains, verifying citations, or ensuring a download link points to the expected host. Prefer it over a simple HTTP HEAD check when you need the full multi-hop chain rather than just the final status.
Side effects
- Invalid or malformed URL input returns an error
- URL that refuses connections or times out may result in incomplete chain
- Redirect loops may be detected and reported rather than followed indefinitely
- Non-HTTP/HTTPS schemes (ftp, mailto) are not supported
- Private or localhost URLs may be blocked
- Payment failure (402) if USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | HTTP or HTTPS URL whose redirect chain should be resolved. |
Tags
x402
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