{"uid":"cap_JL-4wWuaHe7MEgVdJZNc3","slug":"mat-web-data-toolkit-email-check-0052b840","name":"Mat Web & Data Toolkit – Email Check","description":"Fetches a public web page and returns its title, meta description, outbound links and readable plain text as JSON.","url":"https://automatom.matt-d59.workers.dev/emailcheck?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","required":["email"],"properties":{"email":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"mx":[{"exchange":"","priority":0}],"email":"info@example.com","domain":"example.com","has_mx":true,"fallback_a":[],"syntax_valid":true,"free_provider":false,"deliverable_domain":true}},"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_GHPCiJoiTyPEmeAV6BWdJ","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":"Validates an email address by checking its syntax, MX records, domain deliverability, and whether it belongs to a free email provider.","exampleAgentPrompt":"Can you check if info@example.com is a valid, deliverable email address — tell me if the syntax is correct, whether there are MX records, and if it's from a free email provider?","exampleUseCases":[{"title":"Lead quality screening before CRM import","prompt":"Before I import this list of emails into the CRM, check whether contact@acmecorp.com is a real deliverable address and not from a free provider like Gmail."},{"title":"New user signup email verification","prompt":"A user just signed up with the email john.doe@startup.io — can you verify it has valid syntax and that the domain actually accepts email before we send the welcome message?"},{"title":"Sales outreach domain health check","prompt":"I'm about to send a cold outreach campaign — can you check if hello@targetcompany.com has working MX records and is likely to be deliverable?"}],"resultDescription":"Returns a JSON object containing: the original email and extracted domain, a syntax_valid boolean, a has_mx boolean with the full list of MX exchange records and their priorities, fallback A records, a free_provider boolean indicating whether the domain belongs to a common free email provider (e.g. Gmail, Yahoo), and a deliverable_domain boolean.","failureModes":["Missing or malformed email query parameter returns an error","Domains with no public DNS records may return has_mx: false and deliverable_domain: false even if valid","Rate limiting or upstream DNS timeouts may cause delayed or failed lookups","Temporary DNS outages for a domain could cause false negatives on deliverability"],"whenToPreferThis":"Use this endpoint when you need a lightweight, real-time email validation that goes beyond syntax checking — specifically when you need MX record lookups and free-provider detection in a single call. Prefer it over pure regex validation when deliverability certainty matters, such as before sending transactional emails or qualifying leads.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-18T12:45:19.137Z","isFirstParty":false,"canonicalSlug":"mat-web-data-toolkit-email-check-0052b840"}