{"uid":"cap_n5d5afpQ89tynFSRL_Pxo","slug":"is-port-161-open-watch-52c60be6","name":"is-port-161-open-watch","description":"Change watch for is port 161 open: runs the check, compares it with the result from your previous call for the same host (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.","url":"https://ip.intel.rallylive.ca/watch/ip/port/161?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_LLfUym5wH3zEysbRNv2aL","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Monitors whether TCP/UDP port 161 (SNMP) is open on a host, returning current status plus a change diff compared to the previous check within 90 days.","exampleAgentPrompt":"Keep an eye on port 161 (SNMP) for the host 203.0.113.45 — let me know if its open/closed status has changed since the last time you checked.","exampleUseCases":[{"title":"SNMP exposure alert for security team","prompt":"Watch port 161 on 198.51.100.10 and tell me if it has become open since the last check — I need to know immediately if SNMP gets exposed on that server."},{"title":"Network device availability monitoring","prompt":"Check whether port 161 is now open on my router at 10.0.0.1 and tell me if anything changed compared to the last time you polled it."},{"title":"Periodic SNMP audit across infrastructure","prompt":"Poll port 161 on 192.168.1.50 and give me the before-and-after diff — I'm auditing which hosts have started or stopped responding on SNMP this week."}],"resultDescription":"Returns the current open/closed status of port 161 on the target host, a boolean indicating whether the status changed since the last call for the same host, a breakdown of which fields changed with before and after values, and the timestamp of when the state was last observed. Historical state is retained for 90 days.","failureModes":["Host is unreachable or invalid — connection attempt fails with no status returned","No previous check exists for host — 'changed' field may be null or false by default with no before value","Rate limiting or payment failure — call rejected before check is performed","Port scan blocked by firewall — result may incorrectly show closed when host is up"],"whenToPreferThis":"Choose this endpoint when you need change detection for port 161 (SNMP) specifically — not just a one-time open/closed check. It is ideal for scheduled polling workflows where you want to be alerted only when state transitions occur, avoiding noise from repeated identical results. Prefer it over a plain port-check endpoint when you need diff output (before/after) and a 90-day history of state for the same host.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T18:41:43.886Z","isFirstParty":false,"canonicalSlug":"is-port-161-open-watch-52c60be6"}