the402 endpoint detail

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sitemap-url-extractor.underscoredone.com extract

https://sitemap-url-extractor.underscoredone.com/extract

answers 402

Give this API a link to any website's sitemap.xml file and it will fetch and parse it, returning every URL found inside. If the sitemap links to other sitemaps (called sitemap indexes), it will follow and extract those too. Each URL is returned with any extra information available, such as when the page was last updated and how often it changes. Useful for SEO audits, content inventories, broken l

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.01
Network
base
Pay to
0xE9740820225B3918b4ddd1292C7cA4Ca0e2C2F08
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
164 ms
Payment options
2 usable of 2
Last checked
2026-08-15T14:22:01.620Z (13h ago)
Category
web-scraping

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fsitemap-url-extractor.underscoredone.com%2Fextract"