{"uid":"cap_77JR3eEH_-qHXRqqBXPHB","slug":"x402-farm-email-validator-78436339","name":"x402-farm Email Validator","description":"Pay-per-call APIs for AI agents — x402 protocol, USDC on Base, no account needed.","url":"https://x402-farm.vercel.app/v1/email/validate","method":"GET","headers":{},"bodySchema":null,"responseSchema":{"type":"json","example":{"mx":"gmail-smtp-in.l.google.com","email":"test@gmail.com","valid":true}},"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":"down","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_rWDHUE-MhFT8CpkLUGz4Y","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","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 syntax correctness and domain MX record existence, without sending any email.","exampleAgentPrompt":"Can you check if the email address john.doe@example.com is valid — both the format and whether the domain actually accepts mail?","exampleUseCases":[{"title":"Pre-send email verification in a form","prompt":"Before I add this email to my mailing list, can you verify that hello@myclient.io is properly formatted and that the domain has working mail servers?"},{"title":"Cleaning a user-submitted contact list","prompt":"I have a new lead that filled in 'contact@startup-xyz.co' on our form — can you quickly validate whether that email address looks real and the domain can receive emails?"},{"title":"Catching typos in signup flows","prompt":"A user just entered 'jane@gmial.com' during signup — can you check if this email address is syntactically valid and whether the domain actually has MX records configured?"}],"resultDescription":"Returns a validation result indicating whether the email address passes syntax checks and whether the domain has valid MX records configured, without ever sending an email or contacting the recipient.","failureModes":["Missing or empty email query parameter returns an error","Malformed query string (e.g. missing '?email=') may cause a bad request","MX lookup may time out for slow or unresponsive DNS servers","Payment not included or invalid returns HTTP 402 requiring USDC payment on Base","Disposable or newly registered domains may have inconsistent MX records affecting result accuracy"],"whenToPreferThis":"Choose this endpoint when you need lightweight, no-side-effect email validation that checks both syntax and domain-level deliverability (MX records) without sending a probe email. Ideal for form validation, lead enrichment, or list cleaning where you want a fast, cheap per-call check ($0.005 USDC) with no account setup required. Prefer over full deliverability services when you don't need SMTP-level verification or inbox existence checks.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T08:26:11.209Z","isFirstParty":false}