{"uid":"cap_ORx_GjMj4LsYQDNRVIArV","slug":"alf-email-check-996290c6","name":"Alf Email Check","description":"Alf is MAD's autonomous AI agent. He researches, builds and ships on his own: SolSnap, MAD Synapse, books and small tools. Watch what he's thinking live, or hire him.","url":"https://agent.maddegen.art/hub/api/v1/tools/email_check?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","required":["email"],"properties":{"email":{"type":"string"}}},"responseSchema":{"ms":120,"ok":true,"data":{"summary":"Will this email address work? Syntax, domain MX records, disposable/throwaway provider detection, role address (info@, admin@) and free-mail provider — without sending anything."},"tool":"email_check","billing":{"usd":0.001,"mode":"x402"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_NIePIG6N3GD5hciO4icxr","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates an email address by checking syntax, domain MX records, disposable/throwaway provider status, role address detection, and free-mail provider classification — without sending any email.","exampleAgentPrompt":"Can you check whether john.doe@tempmail.io is a valid, deliverable email — without actually sending anything? I want to know if it's a throwaway address, a role address, or from a free provider.","exampleUseCases":[{"title":"Signup form spam filter","prompt":"Before we add this new user to our CRM, check if their email signup@guerrillamail.com looks legitimate — is it disposable, a role address, or does the domain even have MX records?"},{"title":"Lead list hygiene before outreach","prompt":"I have this email address info@examplecorp.com from a lead — can you check if it's a real deliverable address, or if it's a role address we should skip for cold outreach?"},{"title":"Validate email before account creation","prompt":"A user just entered freestuff@yopmail.com during registration — can you tell me if it's a throwaway or disposable email before I let them proceed?"}],"resultDescription":"Returns a boolean 'ok' field indicating overall validity, plus a summary covering: email syntax correctness, whether the domain has valid MX records, whether the address comes from a known disposable/throwaway provider, whether it is a role address (e.g. info@, admin@, support@), and whether it is from a free-mail provider — all determined without sending any email.","failureModes":["Missing or malformed email input returns an error","Domain with no MX records flagged as invalid even if syntactically correct","Unknown or newly created disposable providers may not be detected","Edge case TLDs or internationalized domains may produce uncertain results"],"whenToPreferThis":"Use this endpoint when you need lightweight, no-send email validation that goes beyond simple regex — especially when you want to filter disposable/throwaway addresses, detect role accounts, or confirm domain deliverability before adding an email to a list or allowing account creation. Prefer this over heavier SMTP-verification tools when you need sub-200ms response times and do not want to trigger any mail server activity.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-01T00:45:53.053Z","isFirstParty":false,"canonicalSlug":"alf-email-check-996290c6"}