{"uid":"cap_hSowAU9SH5_Oo41RrV790","slug":"agentshelf-syntexa-ch-link-rel-preload-extractor-5f6c122e","name":"agentshelf.syntexa.ch Link rel=preload Extractor","description":"Call when an agent needs link rel=preload hrefs extracted from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/profile-rel-preload first.","url":"https://agentshelf.syntexa.ch/v1/profile-rel-preload?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"url":{"type":"string","maxLength":2048,"minLength":8,"description":"Public page to fetch. The selector or profile is fixed by the SKU. Provide url or html."},"html":{"type":"string","examples":["<!doctype html><html lang=\"en\"><head><title>Hello</title>\n<meta name=\"description\" content=\"Desc\"><meta property=\"og:title\" content=\"OG\">\n<link rel=\"canonical\" href=\"https://example.com/\"><link rel=\"icon\" href=\"/favicon.ico\">\n</head><body><h1>Hello</h1><a href=\"https://example.com/a\">A</a></body></html>"],"maxLength":200000,"minLength":1,"description":"HTML to extract from locally. Provide html or url. When both are set, html is used."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.007","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":"$0.007/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.007","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.007","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_lAXPgvL6oAb_Dq85fxpq6","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.007","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Extracts all link rel=preload href values from a given public web page URL or raw HTML, in an SSRF-safe manner.","exampleAgentPrompt":"Can you extract all the link rel=preload hrefs from https://example.com so I can see what resources that page is preloading?","exampleUseCases":[{"title":"Audit page preload resources","prompt":"Pull all the link rel=preload hrefs from https://shop.acmecorp.com/home so I can see what assets the page is preloading ahead of time."},{"title":"Analyze HTML snippet preloads","prompt":"Here's some raw HTML from our new landing page — can you extract every rel=preload href from it so I know which resources will be hinted to the browser?"},{"title":"Compare preload strategies across pages","prompt":"Fetch the preload links from https://staging.myapp.io/checkout and tell me which resources are being preloaded there."}],"resultDescription":"A list of href values found in link rel=preload tags on the target page or HTML — typically an array of URLs pointing to preloaded scripts, stylesheets, fonts, or other assets.","failureModes":["URL is not publicly accessible or requires authentication — returns error","SSRF-blocked URL (private IP ranges, localhost) — rejected for safety","HTML input exceeds 200,000 character limit — returns validation error","No rel=preload links found on the page — returns empty list","Malformed URL format — returns validation error","Page fetch timeout or network error for URL-based requests"],"whenToPreferThis":"Use this endpoint when you need to programmatically extract link rel=preload resource hints from a public web page or a block of raw HTML. It is SSRF-safe, making it suitable for agent pipelines that cannot run untrusted fetches internally. Prefer the free sandbox endpoint (/v1/sandbox/profile-rel-preload) for testing; use this paid endpoint ($0.007 USDC) for production or when the sandbox is unavailable.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T06:50:14.356Z","isFirstParty":false,"canonicalSlug":"agentshelf-syntexa-ch-link-rel-preload-extractor-5f6c122e"}