{"uid":"cap_f4aMm3lqCK0txa8n4UG-J","slug":"is-port-445-open-f87d59fa","name":"is-port-445-open","description":"Is TCP port 445 (SMB) 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 SMB without running a scanner. $0.01 per check.","url":"https://ip.intel.rallylive.ca/ip/port/445?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_JSdqxLyOfQmmz_f1-pcJX","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 445 (SMB/Windows file sharing) is open, closed, or filtered on a given host by attempting a connection from Cloudflare's edge network","exampleAgentPrompt":"Can you check whether TCP port 445 (SMB) is open or closed on 192.168.1.100? I want to know if it's exposed without running a full scanner.","exampleUseCases":[{"title":"SMB exposure audit on public server","prompt":"Check if port 445 is open on 203.0.113.45 — I want to know if SMB is accidentally exposed to the internet on that IP."},{"title":"Pre-deployment firewall verification","prompt":"Before I go live, can you verify that port 445 is closed and not reachable on my server at myserver.example.com? I need to confirm the firewall is blocking SMB."},{"title":"Security sweep for ransomware attack surface","prompt":"I need to check if TCP port 445 is open on 198.51.100.22 — I'm auditing our infrastructure for SMB exposure that ransomware could exploit."}],"resultDescription":"Returns the port status (open, closed, or filtered) for TCP port 445 on the specified host, along with the connection time in milliseconds. If the host is behind Cloudflare's edge, the result is flagged as inconclusive because Cloudflare's network answers the connection instead of the actual host.","failureModes":["Host is Cloudflare-fronted — result is inconclusive because Cloudflare's edge intercepts the connection","Connection attempt times out — port may be filtered by a firewall with no response","Invalid or unresolvable hostname returns an error","Rate limiting if too many checks are performed in a short window","Network unreachable scenarios may produce false filtered results"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, no-scanner check of SMB port 445 exposure from an external vantage point (Cloudflare's edge) without deploying your own scanning infrastructure. Ideal for quick security audits, pre-deployment firewall checks, or confirming that port 445 is not accidentally exposed to the internet. Not suitable for hosts behind Cloudflare (results are inconclusive) or for comprehensive port range scanning.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:41:23.949Z","isFirstParty":false,"canonicalSlug":"is-port-445-open-f87d59fa"}