{"uid":"cap_m4_kMsNK-UASkr1dS_e3v","slug":"email-address-validation-and-deliverability-checker-06b47e3f","name":"Email Address Validation and Deliverability Checker","description":"Generate an AI_POLICY.md and a pull request template with an AI-disclosure section for your open-source repo. Free, runs in your browser.","url":"https://ai-policy-kit.moneymaker-ai.workers.dev/api/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"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"mx":[{"host":"github-com.mail.protection.outlook.com","priority":0}],"spf":true,"dmarc":true,"email":"support@github.com","domain":"github.com","null_mx":false,"verdict":"domain_accepts_mail","plus_tag":false,"a_fallback":false,"local_part":"support","role_account":true,"syntax_valid":true,"domain_exists":true,"deliverable_domain":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_2L69jp-kmS3nxLHaGvAXi","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","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 for syntax, domain existence, MX records, SPF/DMARC configuration, and overall deliverability verdict.","exampleAgentPrompt":"Can you check whether support@github.com is a real, deliverable email address — specifically whether the domain has valid MX records, SPF, and DMARC set up?","exampleUseCases":[{"title":"Pre-send email deliverability check","prompt":"Before I send this outreach email, can you verify that hello@acmecorp.io is a real, deliverable address — does the domain have MX records and does it actually accept mail?"},{"title":"Role account detection for mailing list","prompt":"I'm cleaning up my mailing list — can you check if no-reply@bigcompany.com is a role account and whether it's actually deliverable?"},{"title":"Domain email configuration audit","prompt":"Can you check the email configuration for the domain stripe.com — does it have valid MX records, SPF, and DMARC set up properly?"}],"resultDescription":"Returns a JSON object containing: MX record list with priorities, SPF and DMARC boolean flags, deliverability verdict string (e.g. 'domain_accepts_mail'), domain existence flag, syntax validity, role account detection, plus-tag support flag, null MX flag, A-record fallback flag, parsed local part, and domain name.","failureModes":["Missing or malformed email query parameter returns an error","Domain with no MX records returns null_mx: true and a non-deliverable verdict","Invalid email syntax returns syntax_valid: false","Non-existent domain returns domain_exists: false","DNS lookup timeouts may cause delayed or failed responses","Rate limiting may occur for high-frequency requests"],"whenToPreferThis":"Use this endpoint when you need a comprehensive, multi-signal email validation that goes beyond simple regex checks — covering DNS MX lookup, SPF/DMARC presence, role account detection, and an overall deliverability verdict in a single call. Prefer this over basic syntax validators when you need to know if an email domain actually accepts mail.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-19T12:41:41.671Z","isFirstParty":false,"canonicalSlug":"email-address-validation-and-deliverability-checker-06b47e3f"}