{"uid":"cap_mNYIFbaiwXCO8yr1hHmbz","slug":"netintel-production-440c-up-railway-app-765abdb2","name":"IP Blacklist Checker (DNS-Based, 15 Lists)","description":"Check an IP address against 15 major DNS blacklists (Spamhaus, Barracuda, SORBS, etc.) simultaneously — returns which lists it appears on, a reputation score, and a threat classification so agents can make block/allow decisions instantly.","url":"https://netintel-production-440c.up.railway.app/ip-blacklist/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":["ip"],"properties":{"ip":{"type":"string","description":"IPv4 address to check (e.g. 1.2.3.4)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"ip":{"type":"string"},"grade":{"type":"string"},"score":{"type":"number"},"findings":{"type":"array"},"blacklists":{"type":"array"},"reversed_ip":{"type":"string"},"listed_count":{"type":"number"},"threat_level":{"type":"string"},"total_checked":{"type":"number"}}}}}}},"responseSchema":{"type":"json","example":{"ip":"1.2.3.4","grade":"A","score":100,"findings":[],"blacklists":[{"name":"zen.spamhaus.org","listed":false,"description":"Spamhaus ZEN — combined spam sources and exploits"}],"reversed_ip":"4.3.2.1","listed_count":0,"threat_level":"clean","total_checked":15}},"example":{"request":{"input":{"type":"http","method":"GET","queryParams":{"ip":"8.8.4.4"}}},"response":{"ip":"8.8.4.4","grade":"A","score":100,"findings":[],"blacklists":[{"name":"zen.spamhaus.org","listed":false,"description":"Spamhaus ZEN — combined spam sources and exploits"},{"name":"bl.spamcop.net","listed":false,"description":"SpamCop — reported spam sources"},{"name":"b.barracudacentral.org","listed":false,"description":"Barracuda — spam sources"},{"name":"dnsbl.sorbs.net","listed":false,"description":"SORBS — spam/proxies/exploits"},{"name":"spam.dnsbl.sorbs.net","listed":false,"description":"SORBS Spam — spam sources"},{"name":"http.dnsbl.sorbs.net","listed":false,"description":"SORBS Open proxies"},{"name":"sbl.spamhaus.org","listed":false,"description":"Spamhaus SBL — spam sources"},{"name":"xbl.spamhaus.org","listed":false,"description":"Spamhaus XBL — exploits/botnets"},{"name":"pbl.spamhaus.org","listed":false,"description":"Spamhaus PBL — policy block list"},{"name":"dnsbl-1.uceprotect.net","listed":false,"description":"UCEPROTECT Level 1"},{"name":"bl.0spam.org","listed":false,"description":"0spam — spam sources"},{"name":"dnsbl.dronebl.org","listed":false,"description":"DroneBL — botnets/drones"},{"name":"all.s5h.net","listed":false,"description":"s5h — spam sources"},{"name":"singular.ttk.pte.hu","listed":false,"description":"TTK — spam sources"},{"name":"ix.dnsbl.manitu.net","listed":false,"description":"Manitu — spam sources"}],"reversed_ip":"4.4.8.8","listed_count":0,"threat_level":"clean","total_checked":15}},"exampleRequest":{"ip":"8.8.4.4"},"tags":["x402"],"displayCostAmount":"0.05","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","requiresHandshake":false,"reviewCount":1,"rating":{"score":"1.00","successRate":"1.00","reviews":1,"stars":"5.0","state":"rated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_HB_F8FkITETYyVZrXIPaK","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks an IPv4 address against 15 major DNS blacklists simultaneously and returns which lists it appears on, a reputation score, and a threat classification.","exampleAgentPrompt":"Check IP 203.0.113.47 against all the major DNS blacklists like Spamhaus and Barracuda and tell me if it's listed anywhere, what its reputation score is, and whether it's a threat.","exampleUseCases":null,"resultDescription":"Returns a JSON object with the queried IP, a letter grade, a numeric reputation score, a threat_level string, the count of lists it appeared on (listed_count), total lists checked (total_checked), an array of blacklist results (blacklists), an array of findings describing specific detections, and the reversed IP used for DNS queries.","failureModes":["Invalid or malformed IPv4 address returns an error","Private or reserved IP ranges may return no meaningful blacklist data","DNS timeout on one or more blacklists may cause partial results","Rate limiting at $0.003/call may reject requests if payment fails","Network issues reaching the DNS blacklist resolvers may cause incomplete checks"],"whenToPreferThis":"Use this endpoint when you need to quickly assess whether a specific IPv4 address is listed on any of 15 major DNS-based blacklists (Spamhaus, Barracuda, SORBS, etc.) and want a consolidated reputation score and threat classification in a single call, rather than querying each DNSBL individually or using a threat-feed-based checker like AbuseIPDB.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":1,"lastUsedAt":"2026-06-12T15:28:22.253Z","lastSuccessfullyRanAt":"2026-06-12T15:28:22.253Z","lastHealthCheckAt":"2026-10-12T12:44:21.269Z","isFirstParty":false,"canonicalSlug":"netintel-production-440c-up-railway-app-765abdb2"}