{"uid":"cap_9BlvqeDrHIpfx2vmK30Lp","slug":"is-port-53-open-bulk-0130fba1","name":"is-port-53-open-bulk","description":"Bulk is port 53 open: up to 20 hosts in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment for agents that hold a list. $0.10 per batch.","url":"https://ip.intel.rallylive.ca/bulk/ip/port/53?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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":"0.1","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":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_gHtU7dQaH3CY4_o_5AKE1","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks whether TCP/UDP port 53 (DNS) is open on up to 20 hosts concurrently in a single batch call, returning ordered results with per-item error fields and a failure count.","exampleAgentPrompt":"Check whether port 53 is open on these 10 servers: 1.1.1.1, 8.8.8.8, 9.9.9.9, 208.67.222.222, 4.2.2.2, 198.41.0.4, 199.9.14.201, 192.203.230.10, 192.5.5.241, 192.112.36.4 — give me the results in the same order with any errors flagged.","exampleUseCases":[{"title":"DNS infrastructure audit across resolver fleet","prompt":"I have a list of 15 public DNS resolver IPs I need to audit — can you batch-check which ones have port 53 open and tell me which ones failed to respond?"},{"title":"Security scan for exposed DNS services","prompt":"Run a bulk port 53 check on these 20 internal server IPs and tell me which ones have DNS accidentally exposed, including any that errored out."},{"title":"Pre-deployment DNS availability verification","prompt":"Before we cut over traffic, can you check that port 53 is open and reachable on all 8 of our new DNS servers at once and flag any that aren't responding?"}],"resultDescription":"An ordered array of per-host results matching the input sequence, each containing whether port 53 is open or closed, a per-item error field if the probe failed, and a top-level failure count summarizing how many hosts could not be checked.","failureModes":["Host unreachable or network timeout returns per-item error field with failure counted","Exceeding 20-host batch limit may result in rejection or truncation","Invalid hostname or IP format causes per-item error","Service unavailable returns HTTP error without per-item results","Payment not processed results in HTTP 402 before any probing occurs"],"whenToPreferThis":"Use this endpoint when you have a list of 2–20 hosts and need to check port 53 availability efficiently in one call rather than making multiple single-host requests. Ideal for network audits, DNS infrastructure validation, and security scans where concurrency and ordered results matter. Prefer the single-host endpoint if you only have one target.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T18:43:21.492Z","isFirstParty":false,"canonicalSlug":"is-port-53-open-bulk-0130fba1"}