{"method":"POST","priceUsd":0.001,"network":"eip155:8453","description":"Sitemap URL extractor for crawlers and autonomous agents. Fetch and parse a public sitemap.xml or sitemap index, recursively expand child sitemap indexes up to two levels, and return deduplicated page URLs with loc, lastmod, changefreq and priority.","example":{"url":"https://example.com/sitemap.xml","limit":500,"max_depth":2}}