{"uid":"cap_3BTD4IzGhNdPfEk7Zzspq","slug":"is-port-25-open-watch-24fa3764","name":"is-port-25-open-watch","description":"Change watch for is port 25 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. $0.02 per check.","url":"https://ip.intel.rallylive.ca/watch/ip/port/25?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_EFcDgaKGlvu-OcsHbH9Wy","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 port 25 (SMTP) is open on a given IP/host, returning the current status, whether it changed since the last check, and a diff of changed fields.","exampleAgentPrompt":"Keep an eye on whether port 25 is open on 203.0.113.45 and let me know if that status changes from what it was last time you checked.","exampleUseCases":[{"title":"Alert on unexpected SMTP exposure","prompt":"Watch port 25 on our production server at 198.51.100.22 and tell me immediately if it suddenly opens — it should always be closed."},{"title":"Track mail server availability","prompt":"Check if port 25 is still open on our outbound mail relay at 203.0.113.10 and flag it if anything has changed since the last time you looked."},{"title":"Security audit for new IP ranges","prompt":"For the IP 192.0.2.88, monitor port 25 and show me whether it's currently open, whether that's changed, and what it was before."}],"resultDescription":"Returns the current open/closed status of port 25, a boolean indicating whether the result changed since the last call for the same host (stored up to 90 days), a diff object showing before and after values for any changed fields, and a timestamp of when the status was last observed.","failureModes":["Invalid or unreachable IP/hostname returns an error or inconclusive result","No previous check stored (first call) — 'changed' will be false/null with no diff available","Payment failure causes request rejection","Host firewalls or rate limiting may cause false negatives (port appears closed when filtered)","Results older than 90 days are purged, so baseline is lost and comparison restarts"],"whenToPreferThis":"Choose this endpoint when you need change-detection semantics for port 25 specifically — not just a one-off port check. It is ideal for scheduled polling workflows where you want to be alerted only when the open/closed state transitions, rather than receiving redundant status reports on every call. Prefer this over a plain port-check endpoint when you care about drift detection, security alerting on unexpected SMTP exposure, or auditing mail server availability over time.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T18:42:50.327Z","isFirstParty":false,"canonicalSlug":"is-port-25-open-watch-24fa3764"}