{"uid":"cap_6KImtSfPTsuD3m7ke_b1Q","slug":"is-port-636-open-ef8322ac","name":"is-port-636-open","description":"Is TCP port 636 (LDAPS) open on a host? Attempts a connection from Cloudflare's edge and reports open/closed/filtered with the connect time; Cloudflare-fronted hosts are reported as inconclusive because their edge answers for them. Exposure checks for LDAPS without running a scanner. $0.01 per check.","url":"https://ip.intel.rallylive.ca/ip/port/636?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_TQmXkn7wq4_4iFvK4l0_N","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 TCP port 636 (LDAPS) is open, closed, or filtered on a given host by attempting a connection from Cloudflare's edge network.","exampleAgentPrompt":"Can you check if TCP port 636 (LDAPS) is open or reachable on ldap.example.com? I want to know if it's exposed to the internet without running a local scanner.","exampleUseCases":[{"title":"LDAPS exposure audit for a server","prompt":"Check if port 636 is open on auth.mycompany.com — I want to know if our LDAP over SSL endpoint is publicly reachable from the outside."},{"title":"Security sweep before go-live","prompt":"Before we launch, can you probe whether TCP port 636 is open or filtered on 203.0.113.45? We need to make sure LDAPS isn't accidentally exposed."},{"title":"Incident investigation of LDAP reachability","prompt":"We're troubleshooting an authentication issue — can you check if port 636 is currently open on directory.internal.example.org and tell me the connect time?"}],"resultDescription":"Returns whether TCP port 636 is open, closed, or filtered on the target host, along with the connection time in milliseconds. If the host is behind Cloudflare's edge, the result is marked inconclusive since Cloudflare answers on behalf of the origin.","failureModes":["Cloudflare-fronted hosts return inconclusive status because Cloudflare's edge intercepts the connection","Hosts with strict firewalls may show 'filtered' rather than 'closed', making it hard to distinguish intent","DNS resolution failures for the given hostname will prevent a check","Transient network issues at Cloudflare's edge may cause false negatives","Rate limiting or payment failures result in no check being performed"],"whenToPreferThis":"Choose this endpoint when you need a quick, passive check of LDAPS port 636 exposure on a remote host without deploying your own network scanner. It's ideal for security audits, pre-deployment checks, and incident triage where you want an external perspective from Cloudflare's edge. Prefer this over full port scanners when you only need a single-port LDAPS exposure result at low cost ($0.01 per call).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T00:40:32.384Z","isFirstParty":false,"canonicalSlug":"is-port-636-open-ef8322ac"}