{"uid":"cap_5zCY1iB8SH7Z4jsXVVH1P","slug":"dns-aaaa-mx1-subdomain-60d557dd","name":"dns-aaaa-mx1-subdomain","description":"AAAA record of mx1.<domain>: looks up the mx1 host under the domain you give (AAAA via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like mx1 without enumerating subdomains. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/host/mx1/aaaa?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Qy03I2wI7VClh2iAVUwad","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Looks up the AAAA (IPv6) DNS record for the mx1 subdomain of a given domain via Cloudflare DoH and reports existence, records, and TTL.","exampleAgentPrompt":"Can you check if mx1.example.com has an IPv6 address by looking up its AAAA DNS record?","exampleUseCases":[{"title":"Email server IPv6 readiness check","prompt":"Does mx1.acmecorp.com have an IPv6 address? Look up its AAAA record so I can tell if their primary mail server supports IPv6."},{"title":"Mail infrastructure audit for a domain","prompt":"I'm auditing the mail setup for fastshipping.io — can you check whether the mx1 host has a valid AAAA record and what TTL it has?"},{"title":"Verify MX host existence before outreach","prompt":"Before I send email to contacts at techstartup.com, can you confirm that mx1.techstartup.com actually exists in DNS as an IPv6 AAAA record?"}],"resultDescription":"Returns whether the mx1.<domain> AAAA record exists, any IPv6 addresses found, and the TTL of the record, as resolved via Cloudflare DNS over HTTPS.","failureModes":["Domain does not exist or is not resolvable — returns no records found","mx1 subdomain not present — empty result with existence flag false","Cloudflare DoH upstream timeout or error — service may return an error response","Invalid domain format supplied — request may fail or return empty","NXDOMAIN response when neither domain nor mx1 subdomain is registered"],"whenToPreferThis":"Use this endpoint when you specifically need to check whether the mx1 host of a domain has an IPv6 (AAAA) DNS record, such as auditing mail server IPv6 support or verifying existence of a common MX hostname without broad subdomain enumeration. Prefer this over general DNS tools when you want a targeted, low-cost single-host check via Cloudflare DoH.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T00:59:14.660Z","isFirstParty":false,"canonicalSlug":"dns-aaaa-mx1-subdomain-60d557dd"}