{"uid":"cap_pzHQQ4iEfrcZKPX69Cr0p","slug":"mcp-security-agentdiet-dev-domain-osint-tls-certificate-security-cd4550fb","name":"Domain OSINT, TLS Certificate & Security Headers Recon","description":"Inspects live IPv4/IPv6 DNS resolution, TLS certificate issuer/expiry, and HTTP security grade. (Live x402 v2, IETF MPP & MCP endpoint at https://mcp-security.agentdiet.dev/v1/asn-lookup)","url":"https://mcp-security.agentdiet.dev/v1/asn-lookup?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","required":["domain"],"properties":{"domain":{"type":"string","minLength":1,"description":"Target domain name (e.g. anthropic.com, openai.com) for DNS, TLS certificate, and security header OSINT"}}},"responseSchema":{"type":"object"},"example":null,"exampleRequest":null,"tags":[],"displayCostAmount":"0.01","displayCostAsset":"USD","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":"mpp","network":"tempo","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_b3XX0C1LJiM1HcqeBPpAk","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"mcp-security.agentdiet.dev","brandSlug":"mcp-security-agentdiet-dev-mpp","brandBaseUrl":"https://mcp-security.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Performs live DNS resolution (IPv4/IPv6), TLS certificate inspection (issuer, expiry), and HTTP security header grading for a given domain.","exampleAgentPrompt":"Can you do a full domain OSINT check on stripe.com — I want to see its DNS IPs, TLS certificate issuer and expiry date, and how it scores on HTTP security headers?","exampleUseCases":[{"title":"Pre-launch security audit for SaaS","prompt":"Before we go live, can you check openai.com's TLS certificate details and HTTP security header grade so I can benchmark what a well-secured site looks like?"},{"title":"Vendor due diligence OSINT scan","prompt":"We're onboarding a new vendor at vendor-acme.com — can you pull their DNS resolution, check if their TLS cert is valid and who issued it, and flag any missing security headers?"},{"title":"Phishing domain investigation","prompt":"I think suspicious-login-paypal.com might be a phishing site — can you check its DNS IPs, TLS certificate issuer and expiry, and HTTP security posture to help me assess the risk?"}],"resultDescription":"Returns live DNS resolution results (IPv4/IPv6 addresses), TLS certificate metadata (issuer, expiry date, validity status), and an HTTP security header grade/analysis for the queried domain.","failureModes":["Domain does not exist or fails DNS resolution — empty or error response","Domain has no TLS certificate — certificate fields absent or null","Target domain blocks HTTP requests — security headers cannot be retrieved","Invalid domain format provided — validation error returned","Network timeout reaching the target domain — partial or error response"],"whenToPreferThis":"Choose this endpoint when you need live, combined DNS + TLS + security header intelligence on a domain in a single call, particularly for OSINT investigations, vendor due diligence, phishing triage, or pre-deployment security benchmarking. Prefer it over manual tools like dig/nslookup or SSL labs when you need programmatic, structured output consumable by an agent pipeline.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:26:22.056Z","isFirstParty":false,"canonicalSlug":"mcp-security-agentdiet-dev-domain-osint-tls-certificate-security-0096b7db"}