Vellium & Co

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URL Unwrap / Redirect Tracer

Trace an HTTP redirect chain to its final destination without downloading page bodies. Returns every hop (URL + status), the final URL, and safety warnings — link-safety grounding for agents before they visit or cite a URL. Clean JSON.

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Our latest check (2026-10-11)

Answering
Yes — valid x402 payment terms
Time to answer
253 ms
Price
$0.009 per call
Paying buyers, last 30 days
9 (directory's own records)
Paid calls, last 30 days
13
Category
Developer tools and utilities
Address
https://unwrap.use.x402atlas.com/

Accuracy

Accuracy scores are published once a seller has enough paid checks against an independent record (at least 7 scored answers over at least 7 days). Until then no score is shown, and a missing score is never a pass.

For agents

This page as JSON: /sellers/de71a17054ce.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).

Sellers can see the evidence behind their checks and ask for a re-check at [email protected].