{"uid":"cap_oDGWjigqMtCnRlW3RVPpE","slug":"ipv4-fr-ip-blacklist-check-api-f439cbba","name":"ipv4.fr IP Blacklist Check API","description":"Fast, reliable network tools API. IP geolocation, DNS lookup, SSL check, WHOIS, email validation, port scan. Free tier available.","url":"https://ipv4.fr/x402/v1/blacklist/%7Bip%7D?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"ip":"8.8.8.8","clean":true,"listed_count":0}},"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_dhfdHB-XC58sRexppgN0A","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":"Checks whether a given IPv4 address appears on spam/abuse blacklists and returns a clean/listed status with count","exampleAgentPrompt":"Can you check if the IP address 203.0.113.45 is on any spam or abuse blacklists and tell me whether it's clean?","exampleUseCases":[{"title":"Email sender IP reputation check","prompt":"Before I send bulk emails from our server at 198.51.100.22, can you check if that IP is blacklisted on any spam databases?"},{"title":"Suspicious traffic source investigation","prompt":"We're getting a lot of traffic from 185.220.101.5 — can you check if it's on any blacklists or abuse lists so I know if I should block it?"},{"title":"New server IP verification","prompt":"I just got a new dedicated server with IP 91.108.4.10 — can you verify it's not already listed on any blacklists before I start using it?"}],"resultDescription":"Returns a JSON object containing the queried IP address, a boolean 'clean' flag indicating whether the IP is free of blacklist entries, and a 'listed_count' integer showing how many blacklists the IP appears on.","failureModes":["Invalid IP format returns an error","IPv6 addresses may not be supported (endpoint is IPv4-specific)","Network timeout if blacklist databases are slow to respond","Rate limiting if free tier quota is exceeded","Private/reserved IP ranges may return unexpected results"],"whenToPreferThis":"Choose this endpoint when you need a quick, affordable per-IP blacklist check with a clear clean/dirty signal and a count of listings. At $0.003 per call it is cost-effective for on-demand reputation checks. Prefer it over manual DNSBL lookups or heavier threat-intelligence platforms when you need a simple pass/fail reputation signal without complex setup.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T12:36:53.731Z","isFirstParty":false,"canonicalSlug":"ipv4-fr-ip-blacklist-check-api-f439cbba"}