{"uid":"cap_gnUlgmFz9SvBpHB0qZxDe","slug":"is-port-143-open-watch-9d22de6c","name":"is-port-143-open-watch","description":"Change watch for is port 143 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. $0.02 per check.","url":"https://ip.intel.rallylive.ca/watch/ip/port/143?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_6VrBioHN4yANPHQ49Q39t","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 port 143 (IMAP) is open on a host and returns change detection data comparing the current result to the previous check.","exampleAgentPrompt":"Keep an eye on port 143 for mail.mycompany.com and let me know if it changes from open to closed or vice versa compared to the last time you checked.","exampleUseCases":[{"title":"Mail server IMAP downtime alerting","prompt":"Watch port 143 on imap.mycompany.com and alert me if it stops being open — I need to know the moment IMAP goes down compared to the last check."},{"title":"New server IMAP port go-live detection","prompt":"I just set up a new mail server at 198.51.100.42 — check port 143 and tell me as soon as it opens up compared to the previous state."},{"title":"Security audit for unexpected IMAP exposure","prompt":"Check whether port 143 is open on 203.0.113.15 and tell me if the status changed since the last scan, so I can track if IMAP was unexpectedly exposed."}],"resultDescription":"Returns the current open/closed status of port 143, a boolean indicating whether the status changed since the last call for the same host, a before/after diff of any changed fields, and the timestamp of when the previous state was last seen. History is retained for 90 days.","failureModes":["Host unreachable or invalid hostname — may return an error or closed status","No previous check stored for this host — 'changed' field may be null or false on first call","Rate limiting or payment failure for x402 micro-payment — request blocked","Port scan blocked by firewall at the edge — may report closed when actually filtered"],"whenToPreferThis":"Choose this endpoint when you need change detection for port 143 specifically — not just a one-off open/closed answer — and want to be alerted when IMAP port availability transitions. Prefer this over a plain port-check endpoint when you are scheduling recurring polls and need the before/after diff returned automatically without managing state yourself.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:40:19.881Z","isFirstParty":false,"canonicalSlug":"is-port-143-open-watch-9d22de6c"}