{"uid":"cap_S4hE1Y9PJpGbN_arViGLN","slug":"ipv4-fr-email-validation-api-131c1445","name":"ipv4.fr Email Validation API","description":"Fast, reliable network tools API. IP geolocation, DNS lookup, SSL check, WHOIS, email validation, port scan. Free tier available.","url":"https://ipv4.fr/x402/v1/email/%7Bemail%7D?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"email":"user@example.com","valid":true,"checks":{"syntax":true,"disposable":false,"mx_records":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":"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_XqMDABAw7KVQtT_IqfFwI","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, disposability, and MX records","exampleAgentPrompt":"Can you check if user@example.com is a valid, deliverable email — make sure it's not a disposable address and that the domain has real mail servers?","exampleUseCases":[{"title":"Signup form email gating","prompt":"Before I create the account, validate john.doe@mailinator.com — I want to know if it's syntactically correct, whether it's a throwaway address, and if the domain actually accepts email."},{"title":"Bulk lead list cleaning","prompt":"Check if the email address sales@acmecorp.io is real and reachable — I need to know if the syntax is valid, the domain has MX records, and it's not a disposable inbox."},{"title":"Pre-send deliverability check","prompt":"Before we send the invoice, verify that billing@startup.xyz is a legitimate email — flag it if it's disposable or if the mail server doesn't exist."}],"resultDescription":"Returns a JSON object with the input email address, an overall valid boolean, and a checks object containing: syntax (boolean indicating valid format), disposable (boolean flagging throwaway email providers), and mx_records (boolean confirming the domain has valid mail exchange records).","failureModes":["Invalid or malformed email format in the path parameter may return a 400 error","Network timeouts during MX record DNS lookup may cause partial results or errors","Unknown or newly registered domains may cause false negatives on MX checks","Payment not fulfilled (402) if USDC micropayment is not completed via x402 protocol","Rate limiting if free tier quota is exceeded"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, real-time email validation check that combines syntax verification, disposable provider detection, and MX record lookup in a single call. It is ideal for pre-registration filtering, lead list hygiene, or pre-send deliverability checks where a quick per-address validation at $0.005 USDC is acceptable. Prefer it over heavier email verification services when you don't need full SMTP probing or inbox-level confirmation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T12:37:33.842Z","isFirstParty":false,"canonicalSlug":"ipv4-fr-email-validation-api-131c1445"}