{"uid":"cap_OGWgdch_HguvsTfUo0C9V","slug":"freetier-agent-api-page-check-d911ecdd","name":"FreeTier Agent API — Page Check","description":"Pay-per-call data API for AI agents: AI model prices and cost calculator, 4,259 MCP servers, email domain checks, text-to-JSON extraction, country/holiday/currency lookup, page and link checks, page-to-markdown, 2,230 verified APIs. x402, USDC on Base, no signup. Sources cited in every response.","url":"https://freetier-agent-api.pages.dev/api/page-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":["url"],"properties":{"url":{"type":"string"}}}}},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"url":"https://example.com","title":"Example Domain","status":200,"agent_friendliness":{"score":55,"ai_bots":{"GPTBot":"allowed"},"llms_txt":false}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.03/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_yUPh5xBDk7IFFYd4JXszj","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.03","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks a web page URL and returns its HTTP status, title, and AI-agent friendliness signals including bot permissions and llms.txt presence","exampleAgentPrompt":"Can you check if https://anthropic.com is accessible, what its HTTP status is, and whether it allows AI bots like GPTBot to crawl it?","exampleUseCases":[{"title":"Pre-crawl agent-friendliness check","prompt":"Before I scrape data from https://openai.com, can you check whether that site is up and whether it allows AI bots to access it?"},{"title":"Broken link detection in workflow","prompt":"I have this URL https://example-blog.com/post/123 — can you verify it's still live and returning a 200 status, or if it's broken?"},{"title":"llms.txt discovery for AI pipeline","prompt":"Does https://stripe.com have an llms.txt file and what's its overall AI friendliness score? I want to know if it's safe to use in my agent pipeline."}],"resultDescription":"Returns a JSON object with the URL, page title, HTTP status code, and an agent_friendliness object containing a numeric score, per-bot crawl permission flags (e.g. GPTBot: allowed/disallowed), and a boolean indicating whether an llms.txt file is present.","failureModes":["URL is unreachable or times out — may return error status or network failure","Invalid or malformed URL input causes a 400-level error","Target site blocks the checker's IP or returns a CAPTCHA","Page returns a redirect chain that cannot be resolved","Payment not settled via x402 results in a 402 response before the check runs"],"whenToPreferThis":"Use this endpoint when you need a quick, paid-per-call check of whether a URL is live, what HTTP status it returns, and whether the site explicitly permits or blocks AI bots — especially when you need the llms.txt signal and agent friendliness score before deciding to crawl or integrate a site into an agent workflow. Prefer this over a general HTTP ping when AI-accessibility metadata (bot permissions, llms.txt) is relevant to your decision.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-18T12:51:33.731Z","isFirstParty":false,"canonicalSlug":"freetier-agent-api-page-check-d911ecdd"}