{"uid":"cap_u-uZH4u2GXiVyz_v0QQXf","slug":"x402-email-validation-api-1f1515ed","name":"x402 Email Validation API","description":"Pay-per-call API for AI agents with no signup or API key. Email validation, SPF/DMARC audits, DNS lookup, site contacts, URL to Markdown, IBAN and Swedish personnummer/orgnr validation. From $0.001 in USDC on Base via x402.","url":"https://agentkit-x402.zenith-ops.workers.dev/v1/email-check?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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","description":"Email address to check."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"dns":{"mx":[{"host":"mail.gmial.com","priority":10}],"null_mx":false,"nxdomain":false,"address_record":true},"note":"Based on syntax, lists and DNS only. No SMTP connection is made, so a deliverable mailbox is not confirmed.","email":"anna@gmial.com","score":70,"domain":"gmial.com","reasons":["possible_domain_typo"],"verdict":"risky","disposable":false,"local_part":"anna","role_account":false,"smtp_checked":false,"syntax_valid":true,"free_provider":false,"typo_suggestion":"gmail.com"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_C0PZ7zRsYdgxsP7LvIwkl","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","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, DNS/MX records, disposable/role status, typo detection, and deliverability risk scoring — paid per-call in USDC via x402","exampleAgentPrompt":"Can you check whether anna@gmial.com is a valid email address — I want to know if it's risky, disposable, or has a typo in the domain before I add it to my list?","exampleUseCases":[{"title":"Lead list email hygiene","prompt":"Before we import this list of signups, check if john.doe@mailnator.com is valid — flag it if it's disposable, a role account, or has a suspicious domain."},{"title":"Form submission fraud detection","prompt":"A user just signed up with support@tempmail.org — can you tell me if that's a real email or a throwaway address I should reject?"},{"title":"CRM data quality audit","prompt":"We have the email ceo@gmial.com in our CRM — is the domain a typo, and does it actually have mail servers set up? Give me a risk verdict."}],"resultDescription":"Returns a JSON object with: overall deliverability score (0-100), verdict (safe/risky/invalid), syntax validity flag, MX records for the domain, null_mx and nxdomain flags, disposable and role_account booleans, free_provider flag, smtp_checked flag, typo_suggestion if the domain looks misspelled, and an array of reason codes explaining the verdict (e.g. 'possible_domain_typo').","failureModes":["Missing 'email' query parameter returns an error","Malformed email input may return syntax_valid: false with no DNS data","DNS lookup failures may result in incomplete MX data","Temporary DNS timeouts may affect score accuracy","No SMTP connection is made, so a syntactically valid email with valid MX can still have an undeliverable mailbox — the API notes this limitation explicitly"],"whenToPreferThis":"Choose this endpoint when you need a fast, no-signup, pay-per-call email validation that combines syntax checking, DNS/MX verification, disposable detection, and typo suggestion in one call. Ideal for AI agents that need to validate emails on-demand without managing API keys or subscriptions. Prefer over heavier email verification services when you want USDC micropayment billing and don't need live SMTP probing.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T06:32:04.157Z","isFirstParty":false,"canonicalSlug":"x402-email-validation-api-1f1515ed"}