{"uid":"cap_-3St2CIpod2Ow7HcCgSLx","slug":"ip-listed-on-uceprotect-level-2-dnsbl-2-uceprotect-net-8c03cb9f","name":"IP Listed on UCEPROTECT Level 2 (dnsbl-2.uceprotect.net)","description":"Is this IPv4 address listed on uceprotect 2 (dnsbl-2.uceprotect.net)? Performs the DNSBL query (reversed octets under dnsbl-2.uceprotect.net, via Cloudflare DoH) and returns listed yes/no with the return codes and, where the list publishes one, the reason text. One list, one precise answer. $0.01 per lookup.","url":"https://ip.intel.rallylive.ca/ip/blacklist/uceprotect-2?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"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_n0kW96X5wCexcuq27RYG_","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 whether a given IPv4 address is listed on the UCEPROTECT Level 2 DNSBL (dnsbl-2.uceprotect.net) and returns the listing status, return codes, and reason text if available.","exampleAgentPrompt":"Can you check if 203.0.113.47 is listed on the UCEPROTECT Level 2 blacklist and tell me the reason if it is?","exampleUseCases":[{"title":"Email deliverability pre-send check","prompt":"Before we send out this email campaign, check if our mail server IP 198.51.100.12 is listed on UCEPROTECT Level 2 — I need to know if we're blocked and why."},{"title":"Spam complaint IP investigation","prompt":"A customer reported getting spam from IP 203.0.113.88 — can you check if it's on the UCEPROTECT 2 DNSBL and pull back the return codes and any reason text?"},{"title":"New server IP reputation audit","prompt":"We just got assigned IP 192.0.2.55 for our new outbound mail server — can you verify it's not currently listed on the UCEPROTECT Level 2 blocklist before we start using it?"}],"resultDescription":"Returns whether the queried IPv4 address is listed on UCEPROTECT Level 2 (dnsbl-2.uceprotect.net), including listed yes/no status, DNSBL return codes, and the reason text published by the list if available.","failureModes":["Invalid or non-routable IPv4 address provided — lookup may fail or return unexpected results","Cloudflare DoH query timeout or DNS resolution failure","IPv6 addresses not supported — endpoint is IPv4-only","No reason text returned if UCEPROTECT 2 does not publish one for the listing"],"whenToPreferThis":"Use this endpoint when you need a precise, single-list answer for whether an IPv4 address is on the UCEPROTECT Level 2 blocklist specifically. Prefer this over generic multi-list DNSBL checkers when you need the UCEPROTECT 2 return codes and reason text, or when your email filtering or deliverability workflow specifically references dnsbl-2.uceprotect.net.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:41:45.490Z","isFirstParty":false,"canonicalSlug":"ip-listed-on-uceprotect-level-2-dnsbl-2-uceprotect-net-8c03cb9f"}