{"uid":"cap_1j38-5hA8iIFbjksCC873","slug":"mailcheck-hugen-tokyo-bd4922c3","name":"mailcheck.hugen.tokyo Email Validator","description":"6 email validation checks in one call — syntax (RFC 5322), MX record verification, disposable detection (5,000+ domains), free provider identification, role-based address detection (admin@, info@), and typo suggestion. Returns a 0-1 confidence score with detailed per-check results. POST method protects email addresses from access logs. No API keys, no multiple service integrations needed. Accepts USDC payments on Base and Solana","url":"https://mailcheck.hugen.tokyo/mailcheck/validate","method":"POST","headers":{},"bodySchema":{"properties":{"input":{"required":["method"]}}},"responseSchema":null,"example":{"request":{"email":"john.doe@gmial.com"},"response":{"email":"john.doe@gmial.com","score":0.4,"domain":"gmial.com","status":"disposable","is_free":false,"mx_found":false,"mx_records":[],"did_you_mean":"john.doe@gmail.com","syntax_valid":true,"is_disposable":true,"is_role_based":false,"checks_performed":["syntax","mx","disposable","free","role","typo"]}},"exampleRequest":{"email":"john.doe@gmial.com"},"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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_LIeJOE9WhhDxT3srVwrmy","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 using 6 checks (syntax, MX, disposable, free provider, role-based, typo) and returns a 0-1 confidence score","exampleAgentPrompt":"Can you validate the email address 'john.doe@gmial.com' for me — check if the syntax is correct, whether mail servers exist for the domain, and whether it looks disposable or role-based, and give me the confidence score?","exampleUseCases":null,"resultDescription":"Returns a JSON object with: overall score (0-1), domain, status (valid/invalid), is_free boolean, mx_found boolean, mx_records array, did_you_mean typo suggestion string, syntax_valid boolean, is_disposable boolean, is_role_based boolean, and a list of checks_performed.","failureModes":["Malformed request body returns 400 error","Network issues reaching MX DNS servers may cause incomplete MX check","Newly created disposable domains not yet in the 5000+ domain list may pass disposable check","Payment failure (non-payment or wrong amount) returns 402 Payment Required","Domain with no publicly resolvable MX records flagged as invalid even if domain exists"],"whenToPreferThis":"Choose this endpoint when you need a single-call, multi-faceted email validation that covers syntax, DNS/MX, disposable detection, free-provider identification, role-address flagging, and typo correction all at once — without managing API keys or stitching together multiple services. Particularly valuable for user signup flows, lead qualification, or any agentic workflow where email quality matters and you want a simple 0-1 confidence score with per-check detail.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:31:15.924Z","isFirstParty":false}