{"uid":"cap_i-HOqPzmwoJ2Fwc7Sqyis","slug":"ip-listed-on-nordspam-dnsbl-fdae799e","name":"IP Listed on NordSpam DNSBL","description":"Is this IPv4 address listed on nordspam (bl.nordspam.com)? Performs the DNSBL query (reversed octets under bl.nordspam.com, 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. $0.01 per lookup.","url":"https://ip.intel.rallylive.ca/ip/blacklist/nordspam?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_cjtProlzZV7XUZJ6_SWKT","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 NordSpam blacklist (bl.nordspam.com) via DNSBL lookup and returns listed status with return codes and reason text.","exampleAgentPrompt":"Can you check if the IP address 192.168.1.100 is listed on the NordSpam blacklist and tell me whether it's flagged and why?","exampleUseCases":[{"title":"Pre-send email server reputation check","prompt":"Before I send out this campaign, can you check if my mail server IP 203.0.113.45 is blacklisted on NordSpam so I know if it's likely to be flagged as spam?"},{"title":"Incoming connection spam screening","prompt":"We're seeing suspicious traffic from 198.51.100.22 — can you check if that IP is listed on NordSpam and give me the reason if it is?"},{"title":"Deliverability troubleshooting for bounced emails","prompt":"My emails keep bouncing and I think my IP might be blacklisted — can you check if 203.0.113.78 appears on the NordSpam DNSBL and what the return code says?"}],"resultDescription":"Returns a yes/no listing status indicating whether the IPv4 address is present on the NordSpam DNSBL (bl.nordspam.com), along with any associated DNSBL return codes and, where published by the list, a human-readable reason string explaining why the IP was listed.","failureModes":["Invalid or non-routable IPv4 address provided returns an error","DNS resolution failure via Cloudflare DoH may result in timeout or unavailable response","IP not found in DNSBL returns listed=false with no reason text","Malformed input (e.g. IPv6 or hostname instead of IPv4) may return an error or unexpected result","Payment failure ($0.01 USDC) results in request rejection"],"whenToPreferThis":"Choose this endpoint when you need a precise, single-list NordSpam DNSBL check for a specific IPv4 address, especially when you want the exact NordSpam return codes and reason text rather than a generic multi-list reputation score. Prefer it over broader reputation aggregators when your concern is specifically NordSpam listing status, for example when diagnosing email deliverability issues or screening IPs against this specific blocklist.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T18:49:08.648Z","isFirstParty":false,"canonicalSlug":"ip-listed-on-nordspam-dnsbl-fdae799e"}