{"uid":"cap_FYeraytmyUIYfjecQmqop","slug":"ip-listed-on-spamhaus-pbl-d8f00520","name":"ip-listed-on-spamhaus-pbl","description":"Is this IPv4 address listed on spamhaus pbl (pbl.spamhaus.org)? Performs the DNSBL query (reversed octets under pbl.spamhaus.org, 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. $0.01 per lookup.","url":"https://ip.intel.rallylive.ca/ip/blacklist/spamhaus-pbl?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_l1Djlp_ZQskiipIYtl0YN","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 Spamhaus PBL (Policy Block List) via DNSBL lookup, returning listed status, return codes, and reason text.","exampleAgentPrompt":"Can you check if the IP address 198.51.100.42 is listed on the Spamhaus PBL blacklist and tell me the reason if it is?","exampleUseCases":[{"title":"Email deliverability troubleshooting","prompt":"My emails keep getting rejected — can you check if 203.0.113.15 is on the Spamhaus PBL list and show me the return code and any reason they give?"},{"title":"Pre-send IP reputation check","prompt":"Before I send this email campaign, can you verify whether our sending IP 192.0.2.87 is blacklisted on the Spamhaus PBL?"},{"title":"ISP dynamic IP audit","prompt":"I suspect this customer's IP 198.51.100.200 is a dynamic residential address blocked by Spamhaus PBL — can you look it up and tell me if it's listed and why?"}],"resultDescription":"Returns whether the IPv4 address is listed on the Spamhaus PBL (yes/no), the specific DNSBL return codes from pbl.spamhaus.org, and where available, the reason text that Spamhaus publishes for the listing.","failureModes":["Invalid or non-routable IPv4 address provided — returns error or not-listed result","DNS resolution failure via Cloudflare DoH — may return an error or timeout","IPv6 addresses are not supported — endpoint is IPv4-only","Spamhaus PBL service temporarily unavailable — upstream DNS query fails"],"whenToPreferThis":"Use this endpoint when you need a precise, single-list answer specifically for the Spamhaus PBL (Policy Block List), which covers dynamic and end-user IP ranges. Prefer this over the Spamhaus ZEN composite list when you want to isolate PBL-specific listings (e.g. diagnosing residential/dynamic IP blocks) rather than a combined spam/exploit/policy result.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:41:46.024Z","isFirstParty":false,"canonicalSlug":"ip-listed-on-spamhaus-pbl-d8f00520"}