{"uid":"cap_-PzgLcDiWf4IPRv4BOAhv","slug":"stack-facts-port-lookup-8b0a1b55","name":"Stack Facts Port Lookup","description":"Check a package before install: malware, known vulnerabilities (OSV), exploited CVEs (CISA KEV) and end-of-life, plus LLM prices; signed answers, pay per call in USDC, no account or API key.","url":"https://g5joilnmeep4ntz3nwezxt5dmu.srv.us/v1/port/%7Bnumber%7D?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"data":{"port":443,"services":[{"reference":"[RFC 9260]","transport":"sctp","description":"HTTPS","service_name":"https"}]},"meta":{"date":"2026-09-30","stale":false,"notice":"IANA Service Name and Transport…","source":"https://www.iana.org/assignment…","dataset":"port","version":"2026-09-30","attribution":"IANA Service Name and Transport…","retrieved_at":"2026-10-14T20:53:46.534Z"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_SMMS8je1zb2mVE8Ha0N1t","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Looks up IANA service name and transport protocol information for a given port number","exampleAgentPrompt":"What is the official IANA service name and transport protocol for port 443?","exampleUseCases":[{"title":"Identify unknown open port","prompt":"I scanned a server and found port 8080 open — what is the official IANA service name and transport protocol assigned to it?"},{"title":"Validate firewall rule service name","prompt":"We're writing a firewall rule for SSH — can you confirm the official IANA service name and which transport protocols are associated with port 22?"},{"title":"Audit unexpected port in logs","prompt":"I'm seeing traffic on port 5353 in our network logs and want to know the official IANA assignment — what service and transport protocol is that?"}],"resultDescription":"Returns a JSON object containing the port number, a list of associated services (each with service name, transport protocol, description, and RFC reference), plus metadata including the dataset version date, staleness flag, IANA source URL, and retrieval timestamp.","failureModes":["Port number not found in IANA registry — returns empty services list","Invalid port number format — may return error or empty response","Port above 65535 or non-integer input may be rejected","Stale data flag set to true if dataset is outdated","Payment failure via x402 protocol if USDC balance insufficient"],"whenToPreferThis":"Choose this endpoint when you need authoritative, IANA-sourced service name and protocol information for a specific port number, especially in security auditing, network configuration, or firewall rule validation workflows. It is signed and pay-per-call with no account setup required, making it ideal for agent-driven automation that needs trusted, on-demand port lookups without committing to a subscription.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-19T06:40:54.376Z","isFirstParty":false,"canonicalSlug":"stack-facts-port-lookup-8b0a1b55"}