{"uid":"cap_B_9bUz8xT_xIkt8Lj3e9P","slug":"geekvault-asn-lookup-313194b0","name":"GeekVault ASN Lookup","description":"Network, docs, image, web, and dev utility tools paid per call via x402. No signup, no API keys, no subscriptions — just USDC on Base.","url":"https://api.geekvault.dev/net-tools/v1/asn-lookup?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","required":["host"],"properties":{"host":{"type":"string","description":"Hostname o IPv4. Si es hostname, se resuelve a IP primero (registro A)."}}},"responseSchema":{"type":"object","required":["host","resolved_ip"],"properties":{"asn":{"type":["string","null"]},"host":{"type":"string"},"prefix":{"type":["string","null"]},"as_name":{"type":["string","null"]},"country":{"type":["string","null"]},"registry":{"type":["string","null"]},"resolved_ip":{"type":"string"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_C3DPLMxRTKJKAMd8ztnbk","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Resolves a hostname or IPv4 address to its Autonomous System Number (ASN), prefix, AS name, country, and registry information.","exampleAgentPrompt":"Can you look up the ASN and network owner for the hostname api.openai.com — I want to know what autonomous system it belongs to, its IP prefix, and what country it's registered in?","exampleUseCases":[{"title":"Investigate suspicious outbound traffic","prompt":"One of our servers is making connections to 185.220.101.47 and I need to know which autonomous system owns that IP, what network prefix it belongs to, and what country it's registered in — can you look that up?"},{"title":"Verify CDN or hosting provider for a domain","prompt":"Can you check what ASN and network organization are behind cdn.shopify.com? I want to confirm it's actually hosted on a known CDN and find out the IP prefix it resolves to."},{"title":"Enrich security alert with network context","prompt":"I have an alert flagging traffic to mail.protonmail.com — can you resolve it and pull back the ASN number, AS name, and registry so I can add that context to the incident report?"}],"resultDescription":"Returns a JSON object with the original host, its resolved IPv4 address, ASN string (e.g. 'AS15169'), IP prefix (CIDR block), AS name (the organization name), country code, and registry (e.g. ARIN, RIPE). Any field may be null if the information is unavailable for the queried IP.","failureModes":["Host cannot be resolved to an IP (DNS failure) — resolved_ip may be missing or error returned","ASN data unavailable for private/reserved IP ranges — asn, prefix, as_name, country, registry returned as null","Invalid input format (non-hostname, non-IPv4 string) — likely 4xx error","Payment failure via x402 — 402 response before lookup is attempted","Timeout if DNS resolution takes too long for unresponsive hostnames"],"whenToPreferThis":"Choose this endpoint when you need lightweight, pay-per-call ASN and network ownership lookup without managing API keys or subscriptions. Ideal for agents enriching security alerts, validating hosting providers, or performing network triage. Best for single-host queries billed at $0.003 USDC per call via x402 on Base — no account setup required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T00:22:11.654Z","isFirstParty":false,"canonicalSlug":"geekvault-asn-lookup-313194b0"}