{"uid":"cap_4QHmV5TBJVDMORrZiIdQN","slug":"ip-listed-on-sorbs-79700769","name":"ip-listed-on-sorbs","description":"Is this IPv4 address listed on sorbs (dnsbl.sorbs.net)? Performs the DNSBL query (reversed octets under dnsbl.sorbs.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. $0.01 per lookup.","url":"https://ip.intel.rallylive.ca/ip/blacklist/sorbs?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_MJ35GBoFchFgemflECLQa","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 SORBS DNSBL (dnsbl.sorbs.net) and returns listed status, return codes, and reason text.","exampleAgentPrompt":"Can you check if the IP address 198.51.100.42 is listed on the SORBS blacklist (dnsbl.sorbs.net) and tell me the return code and reason if it is?","exampleUseCases":[{"title":"Pre-send email deliverability check","prompt":"Before I send this bulk email campaign, check if my mail server's IP 203.0.113.10 is listed on SORBS so I know if it'll get blocked."},{"title":"Investigating suspicious inbound connection","prompt":"We're getting weird traffic from 91.108.4.33 — can you check if that IP is on the SORBS blacklist and what category it's flagged under?"},{"title":"Validating a new hosting IP for clean reputation","prompt":"I just got assigned IP 198.51.100.77 for my new server — is it listed on SORBS and does it have any reason text explaining why?"}],"resultDescription":"Returns a yes/no indicator of whether the IPv4 address is listed on SORBS (dnsbl.sorbs.net), along with the DNS return codes from the DNSBL query and, where published by SORBS, a human-readable reason text explaining the listing category (e.g. spam source, open proxy, zombie).","failureModes":["IP address not provided or malformed — query fails with input validation error","DNS resolution failure via Cloudflare DoH — upstream timeout or error","IP not listed — returns listed: false with no return codes or reason","SORBS DNSBL temporarily unavailable — upstream DNS error returned","IPv6 address provided instead of IPv4 — not supported by this endpoint"],"whenToPreferThis":"Choose this endpoint when you need a precise, single-list DNSBL check specifically against SORBS (dnsbl.sorbs.net) rather than an aggregated multi-list score. Ideal for email security pipelines, spam filter automation, or IP reputation enrichment where SORBS listing status is the specific signal required. Prefer this over generic IP reputation APIs when you need the raw SORBS return codes and reason text rather than a composite score.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:41:42.696Z","isFirstParty":false,"canonicalSlug":"ip-listed-on-sorbs-79700769"}