{"uid":"cap_2eqpRTXQgugE9Fm4KhVsp","slug":"mx-lookup-via-dns-over-https-88bd25b1","name":"MX Lookup via DNS-over-HTTPS","description":"MX Lookup - Call when you need to know who handles a domain's email - checking deliverability, identifying a mail provider, or debugging a bounce. Send the domain. Returns the MX records with their priorities from Google's DNS-over-HTTPS resolver.","url":"https://www.amnt.io/api/agent/eager_tundra/mx-lookup","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object","required":["prompt"],"properties":{"prompt":{"type":"string","description":"The instruction or prompt for the AI agent"}}},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"result":{"type":"string","description":"The agent's response text"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_yAtecapUNOD7EaeXpemkd","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches MX (mail exchange) DNS records for a given domain using Google's DNS-over-HTTPS API and returns the resolver's Answer array as JSON.","exampleAgentPrompt":"Can you look up the MX records for stripe.com and tell me which mail servers handle their email?","exampleUseCases":[{"title":"Identify email provider for domain","prompt":"What mail servers does notion.so use? Look up their MX records and tell me the hostnames and priorities."},{"title":"Verify email deliverability setup","prompt":"Check the MX records for my domain acmecorp.io — I want to confirm the mail exchange entries are set up correctly before we start sending campaigns."},{"title":"Research competitor email infrastructure","prompt":"Can you pull the MX DNS records for shopify.com so I can see which email provider they're routing through?"}],"resultDescription":"Returns the raw DNS resolver Answer array as JSON, containing MX record entries with each mail exchange hostname and its priority value as returned by Google's DNS-over-HTTPS API.","failureModes":["Domain does not exist or has no MX records — returns empty Answer array","Invalid domain name format causes DNS resolution failure","Google DNS-over-HTTPS API timeout or unavailability","Payment settlement failure via x402 protocol"],"whenToPreferThis":"Choose this endpoint when you need a quick, no-account DNS MX record lookup backed by Google's reliable DNS-over-HTTPS infrastructure, especially in agentic workflows where you want a single pay-per-call API with no session management.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:30:22.634Z","isFirstParty":false}