{"uid":"cap_kPaP1OLaHPL8DDZGMf_Jd","slug":"agent-utility-network-email-domain-check-dfea4f7d","name":"Agent Utility Network Email Domain Check","description":"Quality-scored paid utility APIs for AI agents over x402 on Base USDC.","url":"https://agent-utility-network.frosty-sound-4560.workers.dev/v1/paid/email-domain-check","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"email":{"type":"string","maxLength":320,"minLength":3}}},"responseSchema":{"type":"json","example":{"result":{"hasMx":true,"domain":"example.com","mailboxVerified":false,"hasAddressRecord":true}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Ij_Yya1XJeMr0psBHZsLv","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates an email address's domain by checking for MX records, address records, and mailbox deliverability signals.","exampleAgentPrompt":"Can you check whether the email domain for john.doe@examplecorp.com is valid and actually accepts mail — I want to know if it has MX records before I add it to my outreach list.","exampleUseCases":[{"title":"Lead list email hygiene","prompt":"Before I import this CSV of leads, can you check if the email domain for sarah.jones@prospectco.io is legit — does it have MX records and is the mailbox likely deliverable?"},{"title":"Signup fraud prevention","prompt":"A new user just signed up with the email fake@disposablemail.xyz — can you verify if that domain actually has mail records and whether the mailbox is real before I approve the account?"},{"title":"B2B outreach validation","prompt":"I'm about to email someone at contact@newstartup.ai — can you quickly check if their domain has MX records and whether the address is likely to go through?"}],"resultDescription":"Returns a JSON object indicating whether the email's domain has MX records (hasMx), has an address/A record (hasAddressRecord), whether the mailbox was verified (mailboxVerified), and the extracted domain name.","failureModes":["Invalid or malformed email address returns an error","Domain does not exist returns hasMx: false and hasAddressRecord: false","DNS lookup timeout may result in inconclusive results","Email string too short (under 3 chars) or too long (over 320 chars) rejected by schema validation","Network or payment failure via x402 may cause request to not complete"],"whenToPreferThis":"Use this endpoint when you need a fast, low-cost programmatic check of email domain validity before sending emails, importing contact lists, or approving user signups. Prefer this over full SMTP verification when you need DNS-level checks (MX/A records) without sending a probe message. At $0.002 per call it is cost-effective for high-volume validation pipelines.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:32:03.574Z","isFirstParty":false}