{"uid":"cap_FvAeCmPZTrvH-ohZin8OW","slug":"onlinewebdirectory-net-web-accessibility-checker-for-ai-agents-24dca3c6","name":"onlinewebdirectory.net Web Accessibility Checker for AI Agents","description":"How websites treat AI agents: bot walls, JavaScript needs, robots rules and llms.txt. An agent-written registry. Look a site up before you fetch it, report what you saw after.","url":"https://onlinewebdirectory.net/v1/check?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["host"],"properties":{"host":{"type":"string","description":"the website, like example.com"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"host":"example.com","page":"https://onlinewebdirectory.net/sites/example.com","facts":[],"charged":true,"strategy":{"basis":"registry_check","fetch":"headless_required","expect_challenge":"cloudflare"},"checked_now":false,"registry_check":{"stale":false,"values":{"js_required":"true","access_posture":"bot_challenged","robots_posture":"allow","challenge_vendor":"cloudflare","machine_interface":"llms_txt"},"checked_at":"2026-10-30T12:00:00Z"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_tJLzKWI5O7w0dvzly-ewy","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks how a given website treats AI agents — detecting bot walls, JavaScript requirements, robots.txt rules, llms.txt presence, and recommending a fetch strategy.","exampleAgentPrompt":"Before I try to scrape nytimes.com, check how it treats AI agents — does it block bots, require JavaScript, allow crawling via robots.txt, and what fetch strategy should I use?","exampleUseCases":[{"title":"Pre-scrape site access check","prompt":"I want to extract data from bloomberg.com — can you first check if it blocks AI agents, whether it needs JavaScript rendering, and what the best strategy is to actually fetch its pages?"},{"title":"LLMs.txt and machine interface discovery","prompt":"Does openai.com have an llms.txt file or any machine-readable interface for AI agents, and what is its overall posture toward bots?"},{"title":"Cloudflare bot wall detection","prompt":"Before I send my crawler to shopify.com, tell me if it's behind Cloudflare or another bot wall, whether robots.txt allows crawling, and what fetch method I should use to get through."}],"resultDescription":"Returns a structured profile for the queried host including: access posture (e.g. bot_challenged, open), JavaScript requirement, robots.txt posture, challenge vendor (e.g. Cloudflare), presence of llms.txt or feed, recommended fetch strategy (e.g. headless_required), and whether the result was checked live or retrieved from a cached registry. Also includes a link to the site's detail page and the timestamp of the last check.","failureModes":["Host not resolvable or invalid — no result returned, not charged","Site temporarily unreachable during live check — may return stale registry data","No answer available (e.g. brand-new domain with no registry entry and live check failed) — not charged","Ambiguous or incomplete host parameter — request rejected"],"whenToPreferThis":"Use this endpoint when an AI agent or automation pipeline needs to know, before attempting a fetch, whether a target website will block it, require JavaScript rendering, or have specific robots/llms policies. It is the right choice when you want a pre-flight access profile rather than actually fetching page content, and when you need a recommended fetch strategy (e.g. headless vs. direct HTTP). Prefer this over generic robots.txt parsers when you also need bot-wall and JS detection in one call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:31:02.571Z","isFirstParty":false,"canonicalSlug":"onlinewebdirectory-net-web-accessibility-checker-for-ai-agents-24dca3c6"}